Do I need to seal your engineered EPS blanks with spackle?

Our Engineered EPS foam does not require sealing. We recommend screening your final shape with 150 grit sanding screen to tighen up the bead structure for less resin absorption into the foam.

Sealing with lightweight spackle is highly recommended when glassing resin tint laminations or if you are painting the blank to give the blank a flatter surface for uniform color (no darker pools of resin)

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