Molds & Accessories for Epoxy

Flexible silicone molds are the best choice for epoxy casting — they release cleanly, do not require a mold release agent, and can be reused many times. Lizard Blanks Resin Casting Molds are designed specifically for woodworking resin projects and produce clean, sharp castings. For custom shapes and large river table pours, melamine-coated particleboard molds are the standard shop-built solution.

You can technically use any container, but graduated mixing cups calibrated to your epoxy system's ratio significantly reduce measurement errors that lead to soft or uncured results. The MAS 32oz Mix Cup is marked specifically for MAS epoxy's 2:1 ratio, eliminating calculation and keeping your workflow accurate and repeatable.

The MAS 4-Sided Trowel is a versatile spreading and finishing tool with four different edge profiles — flat, notched, round, and angled. In epoxy work, it is used to spread table top coatings evenly, scrape excess from surfaces, and work resin into recesses or voids in wood slabs. It replaces multiple single-purpose tools in one compact accessory.

No — epoxy bonds strongly to many surfaces. Silicone, polyethylene, and melamine-coated MDF release cleanly. Wood, cardboard, most plastics, and metal will bond permanently to the cured epoxy unless coated with a dedicated mold release agent. When building custom molds, use melamine board or line the form with packing tape, which epoxy does not adhere to.

For pours over a quart or so, hand-stirring is not fast enough to achieve truly uniform color before the pot life begins to tick down. The Allwy Paint Mixers on a variable-speed drill blend efficiently and without introducing excessive air. Mix at low speed, scrape the walls and bottom of the container, and always add pigment after the resin and hardener are already combined.

Seal all seams and joints in your mold with silicone caulk and allow it to cure fully before pouring. A 2x4 clamped along the outside of the mold walls adds stiffness against the hydrostatic pressure of the resin. Level the mold carefully before pouring — resin seeks its own level and even a small tilt will result in an uneven surface. The epoxy resin itself should be at room temperature for optimal flow and self-leveling.

Yes — quality silicone molds are reusable many times over. After demolding your casting, wash the mold with warm soapy water to remove any resin film before it fully cures, then allow to dry. Avoid cutting or abrading the mold interior, as small tears will telegraph into future castings as lines or marks. Store molds flat or in their original form to prevent distortion.

Exothermic heat from large pours can warp lightweight mold materials. Use thick-walled mold stock (at least 3/4-inch melamine board), brace the exterior with structural supports, and consider dividing large pours into multiple thinner layers if using a table top formula. A deep pour epoxy generates significantly less heat per inch of depth and is the right choice for thick single pours.

For turning blanks, you need a suitable casting mold (wood-stabilized blanks often use cylindrical silicone molds), graduated mixing cups, a mixing paddle or stirrer, pigments for color effects, and a casting epoxy rated for the depth of your blank. Start with the Lizard Blanks Resin Casting Molds, and add color from our Epoxy & Pigment collection.

Yes — between our Epoxy & Resin collection (table top, deep pour, and penetrating formulas), our Epoxy & Pigment collection (mica powders and universal tints), and this molds and accessories collection (mixing cups, trowels, mixers), you have everything required for a complete river table build. For any questions, contact our team.