Today in our FAQ, we answer why you need a seal coat, and what product we recommend! . The "seal coat" refers to coating an object with resin and letting it become tacky prior to encapsulation. The most common reason to seal coat an object is to prevent air from migrating out of a porous object into your epoxy casting. . . . #uvpoxy #sealcoat #ecopoxy #casting #epoxyart #resinart #diy #airbubbles #bubbles #clear | EcoPoxy | Facebook