How To Make A Plaster Mold

If you tap a dry mold with your finger nail, it has a 'ping' sound to it, a wet mold has a dull thud if you can hear anything at all. 6 out of 5 stars 748 $8. Basic mold making tips. body parts). Follow the directions for amounts on your Plaster of Paris package. Weigh both the plaster and water for each mix. We also carry many of your favorite plaster mold supplies, plaster mold hooks, and plaster mold paints and brushes. Silicone block molds are fine for making casts of small objects. it can be easier to create prosthetics and molds on a face cast and then apply them to your face using liquid latex or an alternative skin adhesive. The dental industry is big business healthcare at its finest. Be careful with forced drying, as plaster will start to deteriorate above 130° F or so. 50 for 4 pounds; Home Depot. Mixing Plaster of Paris for Mold Making: WEIGHING. “ComposiMold Plaster was designed to make plaster casting low cost, easy, and work great in ComposiMold molds. The plaster infused bandaging is thin and, even with several layers, the mold is thin yet sturdy enough to be a mask or mold that can serve only that purpose. Plaster of Paris is a compound of gypsum, a sedimentary rock, and water, that when heated can be cast into a strong mold. You can cover the entire balloon or do half and make a bowl. 75 cubic inches of solid material. The secret to a successful plaster of Paris project is to lubricate the mold so that the finished project will release easily. ♦ Determine the size of the mold needed, and find or create a mold form of an appropriate size. However, these products will not remove the spores, which can create a health risk even after they die. Basic mold making tips. The water-to-plaster ratio is critical because it governs both the strength and the absorptive capacity of the mold. The plaster is then molded into the desired shape by hand or by using specially designed arts-and-crafts molds. JAM clay in the joints of the boards again. As you can see in the photo there is mold. You will need a clean mixing container for the plaster, 3. (I make small molds, so if you are going to make a BIG MOLD you will have to adjust). If you have original plaster crown in your home, Canamould will custom-copy your profile for $2 to $10 per linear foot. Mix your plaster with water until it has a thick, milkshake-like consistency, carefully pour into the neck hole. Latex only small Bruttium, smooth mushroom mold plaster concrete 50 casting mold. To make a container for the silicone, use a plastic container that is just a little bit bigger than the object you want to copy. Mixing Plaster of Paris is easy but there are important steps to keep in mind to come up with a solid and sturdy sculpture. I thought of plaster but it gets extremely hard making it difficult to free toes, ears and other parts like that. In order to have a form from which to develop your mold, you must either build the article from scratch using wood, plaster, polyester putty, formica, sheet metal, etc. Great for all of your craft projects - fill it with plaster or resin to make your own Smurf pottery and ceramics!. Lock the flask in place and release the centrifuge. NOT TO BE USED FOR CASTING PLASTER. Stir slowly and try not to fold air into the plaster. Make a model of your gold jewelry piece by carving it in wax. The secret to a successful plaster of Paris project is to lubricate the mold so that the finished project will release easily. SOAP THAT PLASTER MOLD LIKE CRAZY!!!! This is there the soap is crucial. Push the hardened modeling compound mold over the soft putty to create impressions of all the details. Making plaster molds of your face with Monte, Steve, Avé, and Ellen. It's easy! So easy, in fact, that this clip can present a complete overview of the technique in about seven minutes. Concrobium Mold Control is a patented formula that crushes mold below the surface and leaves an invisible antimicrobial shield to prevent it from returning all without the use of harmful chemicals. How to make a skin friendly mold/cast of a body part? I want to make a mold of a body part to make a chocolate form of a body part for a christmas present. Also, apply a small amount of petroleum jelly in the ice cube tray or molds. Using heavy metal tongs, take the flask out of the centrifuge and into a bucket of water. One of the most common frustrations in making molds and casting parts comes from parts sticking to molds. Once you've made it, you can use it to make plaster casts, molds, or even. Make a model of your gold jewelry piece by carving it in wax. Here is a hand-built clay model with a clay mote ready to recieve properly mixed plaster. Start with a simple project and see how easy it is to make awesome artwork. Keep applying coats of plaster and burlap until you have a fairly thick, sturdy mold half, then let the plaster dry. How should I pour in the aluminium ? If I make it top-down, then air wont come out from fin bottoms (tried once, complete failure). Allow the centrifuge to spin to a stop. Pick up the plaster mold out of the fire with tongs and pour the wax out into the bucket. If the two buckets are poured into a mold separately they will go off at a different time and then one mix will try to draw the water out of the other mix, this will end up with a mold that has hard and soft places with in the plaster, this will cause the plaster to crack and fall apart. Next, cover any holes in the mold, including the ones in the mouth and nose, with the tape. Latex mold making compound costs around $10 for a pint, and you can find it at most any craft or model railroad shop. This is dried and the process of dipping in the slurry and drying is repeated until a robust thickness is achieved. On removing the mold you will have the perfect bud. If you're trying to bring an old house back to life, consider adding plaster mouldings that complement your home's architectural style. Apt II Mend-A-Mold was designed and formulated specifically for repairing plaster ceramic molds. The process used for casting aluminum with plaster molds is called lost wax casting. In addition, and because of the thin strips, even though the image inside the mold is the actual reverse of one’s face, the top or the outside of the mold still looks enough like the. This simple way of silicone mold-making will have you wanting to make casts of all your trinkets and toys. These molds will be great keepsakes. The liquid metal will now shoot from the crucible and into the flask to fill the mold. If you are a newcomer to paper mache, the easiest way to begin is to start with balloon projects. Casting masonry walls in plaster. There are mixing procedures that help keep the bubbles to a minimum discussed over on TU. Plaster of Paris, also known as gypsum plaster, is widely used by artists for making sculptures, masks, and various three-dimensional arts and crafts projects. April 17, 2017. The plaster master is coated lightly with a wax release agent (like dish soap), and then placed in the simple-built plywood box created in Step 2, centering the plaster form upside down. World's Easiest Silicone Mold. is a full service, ornamental molding manufacturer. How to Mix Plaster – 10 Steps 1. For hundreds of years, craftsmen have used plaster molds to create high end ornamental ceilings and wall designs in stately mansions, castles and public buildings. Mix the plaster as directed by the manufacturer. But by learning how to get rid of black mold safely and effectively, you can protect the health of your family and the value of your home, without breaking the bank. You can find coral molds in most craft supply stores. That's when making your own push mold for polymer clay comes in handy. Over the next 13 years a number of mold brands have been added making us the largest manufacturer of pottery molds in the ceramic arts industry with almost 12. Locking plaster bat molds, jigger molds for the wheel. The Plaster of Paris at the hardware store costs well less than a dollar a pound. Let the mold cure for several days before using. SOAP THAT PLASTER MOLD LIKE CRAZY!!!! This is there the soap is crucial. If the plaster above the drywall is in good shape, you could also install a piece of trim along the line to cover the transition and create a sort of pediment above it. Make the barrier key and border. Ensure that all excess soap is removed before pouring the plaster, so that no unwanted marks are captured in the mold. Whatever perimeter you choose, Step 3: Play Doh Time! Use your Play Doh, or substitute material, Step 4: Protrusion and. Gently press the smaller leaves into the plaster then arrange them in the center of the tray to cover up where the large leaves meet. Now it takes about 24 hrs for the fabric to dry out, your plaster will still be cold to the touch, but you really don't have to worry too much. In this case the pattern is held by the plaster while the first half of the sand mold is rammed up. The consistency that you are looking for is a runny pancake batter that self levels. Make all your improvements on the paper now because once the plaster is poured you'll be in duck soup -- well maybe wet plaster. Lesson Plan #21 shows how to make a plate with a drape mold. You can find out more at http. No matter what you're looking for or where you are in the world, our global marketplace of sellers can help you find unique and affordable options. I use it full strength, straight out of the bottle. Plaster is a versatile material in this process, used in both mold making and casting. Polyurethane plastic copies are then cast in the mold. Instead of using plaster to create the mold for the metal casting, ceramic casting uses refractory ceramics for a mold material. We understand that your experience and background may not be in mold making and that learning how to make molds is a necessary step in the development of your creative ideas and projects. Making the Ten Commandments out of plaster is a simple process of pouring the plaster into a mold of the Ten Commandments and then allowing the plaster to harden. Whether you're making a side table like mine, a planter box, or a poured table top, you'll need a good, strong mold to hold it in and something that the concrete won't inevitably stick to. we have Concrete Plaster Mold Plastic at affordable prices. In this article, you will learn how to use plaster of Paris molds by three different methods that can help create various objects from artificial candy to statutes. When making a plaster mold you must first decide on the shape and size of your mold. MomJunction has compiled a list of easy-to-do plaster of Paris crafts for kids. Then the plaster won't catch on all those bumps and things and you can have fewer parting lines. mold on it's side and pour about half of the plaster down the side of the mold. A novice should hire a professional, or make a plaster waste-mold of the original and make a plaster cast (a positive). If the two buckets are poured into a mold separately they will go off at a different time and then one mix will try to draw the water out of the other mix, this will end up with a mold that has hard and soft places with in the plaster, this will cause the plaster to crack and fall apart. Mold release is not needed when using latex to plaster. I make my molds out of wood. First of all, you would be required to gather all the supplies and spread a newspaper on the work surface. In this class, you will learn about mixing and pouring plaster, how to prepare and complete a one part plaster mold, and how to use this plaster mold to slip cast ceramic objects. About Reynolds Advanced Materials Reynolds Advanced Materials has been living in the material world since 1963 and exists to help you turn your idea into a physical reality by showing you a world of materials that can do things you never thought possible. Limit one coupon of each type per transaction per day. But not the type you can make at home. Twelve three-pound bags will make one cubic foot of solid material. I want to make an entire mold of a human body and I dont know what materials to use and where I would get them. How to Make and Use a Plaster Press Mold to Make Ceramic Jewelry - Ceramic Arts Network For Allistair and Sally MacDonell, press molds really came in handy for a series of ceramic jewelry that they wanted to make. Plaster molds are lightweight, and made of strong plastic. How to Make Plaster and Cement Items with Molds I enjoy making items from plaster and cement molds to decorate my patio or to give out as gifts. com for some very quality plasters to use in your molds. Fill one flower pot half full with charcoal and light the charcoal. While plaster of Paris can be bought at a craft or hobby store, sometimes it is just more fun to make it at home. I have made stepping stones, dog and cat grave markers, statues, an outdoor bench, bird baths and more. Our range also includes the worlds best chess set moulds imported direct from England. How to Make Ornamental Plaster Furniture Appliques I often find furniture or craft projects that need just a little something extra to dress them up and plaster ornaments are the perfect solution. The extra cheesecloth was then folded over, to reinforce the edges. Urethane Rubber Mold for Plaster or Concrete Casting. Manufacturer of molds for smooth or fluted columns of concrete or plaster, mold for column, formwork for columns, matrix for columns, make yourself your concrete columns with our mold, matrix columns. Make sure the bristles are totally covered or you will get a ring of latex that forms on top of theamonia infused into the bristles. Head of plaster 2 image by Pontus Edenberg from Fotolia. I've thought of it for many years, so I wanted to give it a try. As you know I collect Brown Bag cookie molds and have been working on making paper castings of each mold for my Brown Bag Page. RE: Can you Make A Plaster of Paris Mold for Fiberglass In a week I will be releasing a new 2 hour video titled "Composite Molding Made Easy" showing you step by step from paper drawing to finished part. This is a pourable rubber, but can be thickened with PolyFiber II or Fumed Silica to make brush-on molds when desired. Set the mold onto a piece of aluminum foil or into a pie plate. Then you slowly pour the mixture into the dampened molds, making sure to tilt them to release air bubbles caused by any deep pockets in the mold. Pottery Plaster Regular is 25% softer than No. The Plaster of Paris at the hardware store costs well less than a dollar a pound. I've thought of it for many years, so I wanted to give it a try. Fill with liquid latex, let it sit until a skin is formed on the inside surface of the mold. PLASTER CASTING CRAFTS FOR KIDS : Ideas to Make Creative Plaster of Paris Arts & Crafts Projects & Activities with Easy Instructions for Children, Teens, and Preschoolers Many lovely and useful items can be made from plaster of Paris, molding plaster, or patching plaster. Molding plaster or plaster of paris is mixed to the consistency of pancake batter and poured into the mold. PLASTER POURING Plaster works excellent in our molds. The materials listed here can be easily interchanged with others Step 2: Making the Mold Perimeter. stag beetle bowl. In this process, a model of the desired object is made of wax and coated in plaster. It has to be big enough to dip the flower in, but not so big that you waste a lot of plaster. I need to know what i can use to make a cast that will not irritate my skin and is non toxic for the chocolate to set. Even though SILICONE RTV does not adhere to most materials, it is usual to take certain precautions before taking impressions. Draw a line on the object with a dye-marking felt tip pen. We also carry many of your favorite plaster mold supplies, plaster mold hooks, and plaster mold paints and brushes. People really enjoy looking at them for their artistic beauty. Aluminum castings and zinc castings made using this process more closely simulates die castings than any other rapid prototyping process. Make your plaster for the mold by mixing water and plaster of paris (gypsum) powder at a 3:4 weight ratio (i. The Essential Guide to Mold Making & Slip Casting (A Lark Ceramics Book) [Andrew Martin] on Amazon. 2018 Edit:If you are looking to use this mold making technique to. Exclusions apply. it can be easier to create prosthetics and molds on a face cast and then apply them to your face using liquid latex or an alternative skin adhesive. In this guide, I'll show you how to make a mold of your own for concrete or plaster garden ornaments. I find the result is more like a tint. Apply plaster to the second half. Let it cure, remove the mold, and fill with plaster of paris. Make a Two Part Reusable Mold Using Plaster Step 1: Materials. Bury your object up to halfway in plasticine or cheap clay and rub that lump of clay into the bottom of the box. Mix it and soak some strips of cloth in it and build up over your mold. plaster and mold making Plaster and gypsum cements are incredibly versatile in their applications - from elegant plaster lamps, tables and figurines to molds for slip casting and dies for pressing. Plaster Mould Painting Allow your child to explore their creative talent and let their imagination go wild with Plastermania's fun and exciting range of plaster mould designs and figurines. How to Make Dentures Step By Step. It is a medium-soft polyurethane rubber with a simple 1A:1B mix ratio. Make sure the box is not too big, just big enough for your object. Master plasterers work with a spray bottle to keep the. With both hands, make a mold for the object desired by scooping away sand and pressing designs in sand until you have the proper shape (sketch a). Stag party bowl… And I always need new molds, so when I spotted this handsome beach ball…. Guest post by: Suzy’s Artsy Craftsy Sitcom. Used for making plaster bats, wedging boards, and working molds. Plaster is just slightly thicker than water and will leak out of even the smallest cracks. The process described in this post is for plaster that is going to be used in mold making and plaster casting. I make a lot of my bowls using plaster of Paris press molds. -Let the plaster sit for a minute of two. The consistency that you are looking for is a runny pancake batter that self levels. (I make small molds, so if you are going to make a BIG MOLD you will have to adjust). So we decided to make Hydrocal plaster rocks from latex rock molds. All you need is flour and water, or glue and water if you'd rather not handle flour. •Pour wet plaster into the mold and allow it to set undisturbed. How to Make a Two Part Plaster Mold. The plug is a male. In addition, and because of the thin strips, even though the image inside the mold is the actual reverse of one’s face, the top or the outside of the mold still looks enough like the. This is something that you can cast into the rubber mold to make the item. Plaster of paris (usually just called plaster) is used to make molds, chalk and masks, as well as other craft projects. -Use your hand to squeeze out the lumps and gently mix for a minute or two. When you install the cast detail, use joint compound to fill any gaps between it and the ceiling or wall. RE: Can you Make A Plaster of Paris Mold for Fiberglass In a week I will be releasing a new 2 hour video titled "Composite Molding Made Easy" showing you step by step from paper drawing to finished part. Pouring the Plaster: The alginate is best used right away (not the next day) as it would dry out. Tap the sides of the head to try and dislodge any air bubbles. Molding Materials, LifeCAST, alginates, casting, mold straps, mold bands, mold release agents, bulk alginates. Happy Smurf Plaster Mold. Allow the plaster mold to dry and remove it from the container. Enjoy! source (Visited 20 times, 2 visits today). Mix up more as needed until you reach an inch or two below the top of your mold. Download a hand out on sprig mold making including a list of useful websites or view a few videos on mixing plaster and making sprig molds for ceramic work. Stag party bowl… And I always need new molds, so when I spotted this handsome beach ball…. In a New Mold: Steps for casting plaster ornament. Plaster molds aren’t just for creating cute little craft projects. The plaster is then molded into the desired shape by hand or by using specially designed arts-and-crafts molds. Step 2: Place the object on your Work Board so your parting line is somewhat parallel to your work surface. If you enjoyed this tutorial, you might like my Plaster Casting with Sand tutorial. It's usually done using a centrifuge for small objects in order to make the metal flow into all the parts of the mould. It produces a lower exothermic temperature than most comparable resins begins to gel in 1. Prepare for the cast. The moisture came out of the plaster underneath the texture and paint, causing the surface to bubble. Over 600+ Plaster Molds Available. Because of the semi-porous texture of plaster, mold does not destroy its structure. Pottery Plaster Regular is 25% softer than No. But for larger items, like this 3′ prop gun, you’d need hundreds of dollars’ worth of silicone to make a block mold. Dam the Thing. A smooth cast plaster mold perfect for making your own dinner plates. Push down slightly so the plaster gets into crevices and details. crafts and activities, projects for mama. I find it so fun to be able to physically see just how much your child grows each year. I washed it well, but fear the mold may be the cause that our yoghurt processing has not functioned correctly the last two times. Getting started. It only cost me around $15 in latex to make a mold this size. ProcessEdit. Apply silicone keys. Learn how to mix plaster for making casting molds, bats, and slabs. These tutorials are suitable for beginners. Bubbles can develop in those areas, incompletely filling the details. Find and save ideas about Plaster molds on Pinterest. It's usually done using a centrifuge for small objects in order to make the metal flow into all the parts of the mould. Pour 1/4″ to 1/2″ plaster or concrete into the mold. Plaster of Paris is messy, which means Scouts will enjoy it. Mix the plaster thoroughly with another wooden dowel. Tape to a piece of plaster. Plaster molds are lightweight, and made of strong plastic. World's Easiest Silicone Mold. The problem with plaster is that there is a temperature beyond which a chemical reaction takes place and the mold turns back to the original stuff before you added water in the first place. Plaster of Paris is a compound of gypsum, a sedimentary rock, and water, that when heated can be cast into a strong mold. Making things with plaster of Paris is surprisingly easy and not as messy as you might think. Great for making molds on vertical or overhead surfaces. Pour it into the mold now. Carefully find and mark the parting line on your object with a marker. Using my handy-dandy plaster, and sand as a mold, I created some sunny plaques. Check back with us often as we routinely add new items!. Today Plaster of Paris can be used to make jewelry, bookends and even flower pots. Record its width, height and depth dimensions. Molds/Casting Tips. The consistency that you are looking for is a runny pancake batter that self levels. Cover the bottom of toilet paper roll with aluminium foil. If you've ever longed for a custom mold of your own, this easy-to-follow molding putty recipe is a great place to start!. The idea of a mold is to make a replica of the item that you need. I have never seen plaster molded in polymer clay but, it is the way I have always done it, it's inexpensive, and it works. This method will produce a perfectly flat and square wall every time and, best of all, it is easy and inexpensive. These molds will be great keepsakes. Master plasterers work with a spray bottle to keep the. Always use cold water when mixing plaster. Make the barrier key and border. Many existing products and found objects can be used for paper casting. Shop Mold Making Components. It is possible to carve a shape to use as a mold, but an easier way is to find the shape you want (or sculpt and cure it in polymer clay) and make a mold from that. Drill at about a 30 degree angle (downward) starting at a height that ensures the point where the hole enters the cavity is a few inches from the bottom of the bucket. The most simple and economical material is a superior grade of casting plaster, such as the one purchased from a art supply store. Larger or more complicated molds are made in pieces or with a layer of rubber supported by a plaster shell or mother mold attached to a wooden or metal frame. Click/tap any mold below for more info. This rubber is the industry standard in plaster casting. If you’ve ever longed for a custom mold of your own, this easy-to-follow molding putty recipe is a great place to start!. How to Make Plaster and Cement Items with Molds I enjoy making items from plaster and cement molds to decorate my patio or to give out as gifts. Then you need to order your plaster and supplies. Molds The CeramicMaking Wedging Table And Clay Recycling Plaster BoardsHow To Use A Press Mold Make PotteryPlaster Molds Whole For Ceramics PardisgypsumHow To Make A Latex Mold 10 S With Pictures WikihowHow To Slip Cast Ceramics40 Unique Crafts Using Plaster Of Paris FeltmagThe Easy Way To Make Hump Molds Big CeramicPlaster Molds Whole For Ceramics […]. Smooth the epoxy slightly with your fingers, if necessary, to reshape any areas. After building up a coat about 1/8″ thick, Jeff returns immediately to fill in the deep areas with an artist’s spatula. Remove entire mold from container. The latter is the fastest method. Plaster Mold Volume Calculator for making Two Part Casting Molds. PLASTER CASTING CRAFTS FOR KIDS : Ideas to Make Creative Plaster of Paris Arts & Crafts Projects & Activities with Easy Instructions for Children, Teens, and Preschoolers Many lovely and useful items can be made from plaster of Paris, molding plaster, or patching plaster. I certainly didn’t want to go with all new knobs for sentimental reasons, so I decided to do some research on making DIY drawer knobs with Plaster of Paris from a mold. How to Make Molds for Plaster Statues Steps. The time required will depend on the density of the wax, the thickness of the mold and the power of your microwave. It is very commonly used for medicinal and architectural purposes too. First it is useful to understand mold release. You can see in the photo below that the plaster catches even the tiniest details. Push down slightly so the plaster gets into crevices and details. Limit one coupon of each type per transaction per day. This will make the mold easier to remove when it is dry. Casting brass into straight plaster might work ok for an open face ingot mold, but for more complex shapes in closed molds it will fail, and might do so spectacularly. Create the Silicone Doll Head Mold. It needs to be applied thick on this dimensional plane so it won't run off the sides. Plastic molds for plaster crafting are great. Latex only small Bruttium, smooth mushroom mold plaster concrete 50 casting mold. Latex only modern laying Anna cat mold Mannheim plaster concrete cement mould 6"L It’s a Hand Up While in the program, HIP Housing provides coaching and resources to help participants succeed. Put the mold into a microwave and melt out the wax, leaving an empty mold. This is a plaster casting material. You searched for: make a plaster mold! Etsy is the home to thousands of handmade, vintage, and one-of-a-kind products and gifts related to your search. Locking plaster bat molds, jigger molds for the wheel. Then add more concrete (or plaster) to make a total depth of approximately 3/4″ to 1″. The main concept behind this technique is to make a mold of the wall with basswood strips on a sheet of glass over a copy of the plans. Weigh both the plaster and water for each mix. I could make them out of plaster or something, and paint it, but I think clear resins and things make much more realistic looking water, atleast for 1/35, so Im using 2 part Epoxy Resin. After building up a coat about 1/8″ thick, Jeff returns immediately to fill in the deep areas with an artist’s spatula. Here is a short video showing how to make a down and dirty two piece mold of chicken bones. Plaster Smurf Mold. drywall knife that I cut to match the profile of the crown. This will give the plaster time to creep into all of the details of the stone. Setting time varies widely on the plaster you use, the water temperature, how much you stir the plaster and whether the manufacturer or you added an accelerator or inhibitor. Make Offer - Luna Bean KEEPSAKE HANDS CASTING KIT Couples Wedding Holding Baby Plaster Mold 12 plastic molds *CALIBRA* for concrete veneer wall stone stackstone tiles DIY $39. The first thing I did was to add a coat to the original mould using a fibreglass fabric. To make a mold from a ball, you encase the lower half of the ball in clay. To make plaster, approximately 1 1/2 cups of boiling water are salted and mixed with 4 cups of flour. Making the Ten Commandments out of plaster is a simple process of pouring the plaster into a mold of the Ten Commandments and then allowing the plaster to harden. READ CAREFULLY: If even tiny chunks of plaster are allowed to get into the clay in the. This is the amount of water you will add to the Plaster. Making A Miniature Doll Plaster Mold "Molding Melissa" Basic Instructions For Making A Plaster Mold. All products should be used with good ventilation. Mix 1 cup (240 ml) of water with 2 cups (470 ml) of school glue. An arts and crafts "plaster painting" party theme allows a child to paint plaster moulds and explore their creative talent the fun way. RE: Can you Make A Plaster of Paris Mold for Fiberglass In a week I will be releasing a new 2 hour video titled "Composite Molding Made Easy" showing you step by step from paper drawing to finished part. Coat the entire auto body panel with a thin layer of Vaseline. Tip You can also bring your Plaster of Paris mold to an engineering shop and have them digitize the mold and reverse it in a computer modeling system and then extrude a plastic mold for your opposite panel. This is the second in a series of 3 tips on Plaster and Molds. Plaster Smurf Mold. Make another batch of plaster (enough to finish filling the pan and cover the model), and pour it on top of the petroleum jelly-coated plaster in the pan. Make sure the mold is clean and. The most simple and economical material is a superior grade of casting plaster, such as the one purchased from a art supply store. Delphi Glass has the "V" Board. Polygel ® Spray 35 Rubber. They are also excellent gifts for grandparents and parents. Happy Smurf Plaster Mold. This mold making and casting tutorial features the making of a poured, polyurethane block mold of a plastic corbel.