Mold Making Material 32 oz Kit

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Easy 1:1 Ratio Silicone Mold Kit - Ideal for Resin Molds - 32 oz (16 oz / 473 ml of both part A + B)

  • DIY CUSTOM SILICONE MOLDING: Combine Part A and Part B at the ratio of 1:1. Stir mixture until color is consistent. Pour immediately into a vessel containing a 3D object of your choice.
  • CURES soft, flexible and strong for an easy mold release.  
    Hardness: Shore A-10 ensures smooth and firmness while stretchable without tearing.
  • WORKING TIME: Mold Making Material sets in 45 minutes. Then, you let it cure for 3 hours at room temperature.
  • VERSATILE: Ideal for casting resin, plaster, wax, soap, clay, prototypes, homemade art projects, architectural details, statues, figurines and anything else you can think of. Compatible with ArtResin epoxy resin.
  • NON-TOXIC: No VOC, No BPA, No fumes, No odor. Made in USA.

Conforms to ASTM D-4236

    The best part of Mold Making Material - how easy it is to use, over and over and over again.

    Frequently Asked Questions

    What is the mixing ratio of Part A to Part B?
    Mold Making Material has an easy 1:1 mixing ratio.
    Is it safe?
    Yes, MMM has no fumes, VOCs and is BPA free.
    How many times can I reuse my mold?
    You can expect to use a mold made with MMM over 20 times at least.
    How do I build a vessel/frame for my mold?

    You can use milk cartons, cardboard covered in packing tape, plastic containers and even Lego as a vessel for MMM. Be sure to properly seal your frame with packing tape so no material seeps out.

    The vessel should be larger than the item you want to duplicate. The more space you leave around the object the stronger the mold will be.

    What is the shelf life of the mold making material?
    Mold Making Material has a shelf life of about 6-12 months. After it's opened, we recommend keeping the product at room temperature with lids on tight to help preserve the shelf life.
    What is the working time after the silicone has been mixed?
    You will have about 45 minutes to work with the silicone, after which point it becomes too gelatinous to work with. De-mold after 3-4 hours in a room temperature room. Warmer rooms make the curing process accelerate so the working time is approximate.
    What types of materials can be cast?

    You can cast basically anything. Copper, fruits, wood sculpture, toys, glass, a cookie....

    A few notes: molds can get very complicated depending on the object you want to duplicate. Objects with holes and openings require a bit more planning.

    What is the difference between a one-part mold and a two-part mold?
    A one-part mold is done in one pour, either with a flat side of an object glued to the bottom of the frame so it can be easily removed, or suspended in the frame and cut around to remove it after. A two-part mold on the other hand is created by embedding an object halfway into a block of clay with a frame around it, and pouring silicone material around it. The box is then flipped over, the clay is removed, and silicone is again poured around the object.
    How thick should the silicone be around the object I am casting?
    The thicker the edge, the stronger the mold.
    Do I need a release agent on the object I am casting?
    You do NOT need a release agent if you are casting with ArtResin or ThickCast Epoxy Resins. MMM is a high quality dense silicone.