Half Bubble Mold 428 is a durable, smooth, reusable polyethylene mold that that can be used for the base of a trophy or doll stand, or used as a container when making silicone molds. This mold makes castings approximately 4 inches wide and 1 1/2 inches deep. It holds 8 ounces of resin when filled.
How to Use Resin Molds: Remove any dust and particles from your reusable mold. Molds do not require mold release when casting with resin, however, it is strongly suggested. We recommend the use of Castin' Craft Mold Release and Conditioner. Protect your work area with freezer or wax paper. Treat mold with mold release and allow to dry. Place mold on a level surface and fill the cavities to just below the top. Once the pieces are cured, turn the tray over and press the center area of each piece while flexing to release the casting. Do not use sharp objects to demold your resin as you will scratch your mold. Be sure to also read our plastic resin mold care tips to ensure a long life for your molds.
This mild is quite hard and it was somewhat difficult getting the object to release. I had sprayed the mold, twice, with the release spray but still had problems. I finally hit the dome section with a rubber mallet and it then came right out. I love the size and hope to make many paperweights for gifts from this.
This half dome mold is a good product, being new to casting I think the flaws were all mine. one issue I did have was when I demolded the mold there wasn't a real shine on the finished dome. not horrible just noticeable. the objects I set inside the resin were hard to make out. no problem though once polished with Flitz polish it shined like glass! ultimately very happy with the finished product.