The ArtMolds Vacuum Chamber Front View The ArtMolds Vacuum Chamber is vacuum easy to easy and to operate. It consists of two rubber gaskets to keep it airtight along with a half-inch-inch Lexan top and bottom. This allows you to inspect the vacuuming operation while it is underway. Operating Diagram The ArtMolds Vacuum Chamber diagram shows all of the parts. The depth of the chamber is twelve inches and its diameter is ten inches. It is the perfect size to contain a standard mixing container. The vacuum gauge and exhaust valve are mounted on the side. Cut-A-Way View The above cut-a-way diagram shows how a container of silicone mold material might be placed into the ArtMolds' Vacuum chamber for de-airing. During the vacuuming process, air bubbles form on the surface as air is driven out of the mold material. Vacuum Chamber In Use Assure Bubble-Free Molds and Castings Take the next step in studio equipment by adding that important vacuum chamber. To assure bubble-free mold rubber when mixing polyurethane and silicones, a vacuum chamber is required. The affordable ArtMolds' Vacuum Chamber is the perfect addition to the small studio, school, university, or prototype lab. The ArtMolds' Vacuum Chamber has been engineered for de-airing (eliminating air bubbles) mold making and casting rubbers. Your Studio Needs a Vacuum Chamber ArtMolds Vacuum Chamber Is a Great Choice To assure a bubble-free mold when mixing rubbers and silicones a vacuum chamber is required. The ArtMolds Vacuum Chamber is designed for de-airing (eliminating air bubbles) in rubbers. This PVC chamber, along with ½-inch Lexan plates makes a safe and efficient unit. The vacuum chamber comes with all fittings, a vacuum gauge, rubber gaskets, and top and bottom ½- inch plates. All you need is a vacuum pump that will pull 29-inches of mercury to de-air your materials. SPECIFICATIONS: Capacity: 4 gallons +/- Dimensions: 12 x 10 inches Maximum Pull: 29 inches of mercury Weight: 20-pounds ArtMolds Vacuum Chamber Operation Though the affordability of our vacuum chamber may be low, its design does not skip on professional-grade quality -- and safety. This PVC vacuum chamber, along with ½-inch optically clear acrylic plates makes a safe and efficient unit. The vacuum chamber includes all machined brass fittings, including a petcock exhaust valve, hose barb to connect your vacuum pump, a vacuum gauge, a pair of matched rubber gaskets, and a set of ½-inch clear acrylic plates. All you need is a vacuum pump for your new vacuum chamber that will pull 29-inches of mercury (Hg) at sea level, needed to de-air your materials. Vacuuming Process: Mix your rubber according to the manufacturer's directions. Use a container that holds at least four times the amount of material you are vacuuming to allow for the expansion of the material. Once your vacuum chamber reaches 29-inches of mercury (at sea level), the material will begin to rise (resembling foam) for a minute or two. When the material falls it will plateau and not rise anymore. You will want to continue operating the vacuum chamber for another 2-3-minutes to make certain all of the air has been removed from your material. Open the petcock of your vacuum chamber to allow air inside, remove your material from the vacuum chamber. Pour the material slowly starting from the corner of the mold box, or mold, letting the material to flow freely into the box or mold cavity. This method will usually not introduce any new bubbles into the vacuumed material. To insure that the material is totally devoid of air bubbles you can place the entire mold/mold box into the chamber for an additional few minutes. This will assist the material into difficult areas of the mold/mold box. ArtMolds Vacuum Chamber Operation Though the affordability of our vacuum chamber may be low, its design does not skip on professional-grade quality -- and safety. This PVC vacuum chamber, along with ½-inch optically clear acrylic plates makes a safe and efficient unit. The vacuum chamber includes all machined brass fittings, including a petcock exhaust valve, hose barb to connect your vacuum pump, a vacuum gauge, a pair of matched rubber gaskets, and a set of ½-inch clear acrylic plates. All you need is a vacuum pump for your new vacuum chamber that will pull 29-inches of mercury (Hg) at sea level, needed to de-air your materials. Vacuuming Process: Mix your rubber according to the manufacturer's directions. Use a container that holds at least four times the amount of material you are vacuuming to allow for the expansion of the material. Once your vacuum chamber reaches 29-inches of mercury (at sea level), the material will begin to rise (resembling foam) for a minute or two. When the material falls it will plateau and not rise anymore. You will want to continue operating the vacuum chamber for another 2-3-minutes to make certain all of the air has been removed from your material. Open the petcock of your vacuum chamber to allow air inside, remove your material from the vacuum chamber. Pour the material slowly starting from the corner of the mold box, or mold, letting the material to flow freely into the box or mold cavity. This method will usually not introduce any new bubbles into the vacuumed material. To insure that the material is totally devoid of air bubbles you can place the entire mold/mold box into the chamber for an additional few minutes. This will assist the material into difficult areas of the mold/mold box.
