You can apply a second coat of the resin when there is a need. For instance, if the topcoat is uneven, has imperfections, dust & debris cured with the epoxy. The application of a second coat is the same procedure as the first one. Ensure to sand the coat before applying a second coat to ensure the epoxy will adhere to the layer.
You can apply as many layers of DIY Epoxy Resin as you like, but keep in mind that the ideal layer needs to be 1/8 inches. DIY Epoxy Countertop is not formulated for flood coat thicker than 1/8; for the best results, please pour the suggested thickness.
When pouring multiple layers, you have two choices:
First option: Pour your first layer, clear all bubbles, cover, and wait for about 8 to 12 hours until the resin attains a tacky state. Pour another 1/8-inch layer, torch out the bubbles, cover again and wait for 8 to 12 hours. Repeat the process until you reach your preferred height. This method is ideal when pouring into a mold or dam.
Second method: wait for the first layer to fully dry, give it an overall sanding, then apply the next 1/8-inch layer. Clear all bubbles, cover, and let it dry; repeat the process until you attain your desired height.
It is important to remember that a 1/8-inch layer requires a minimum of 48 hours to cure multiple coats fully.