How to Paint Fiberglass With Acrylic Paint
- 1). Sand the fiberglass surface with 150-grit sandpaper to create a rough surface for paint better adhesion. Even if your fiberglass is already textured, use sandpaper. Textured fiberglass is still very nonporous, which will lead to poor adhesion, and sanding helps with this problem.
- 2). Wipe the sandpaper dust off the fiberglass with a damp rag.
- 3). Apply bonding primer to the acrylic surface with a brush or roller. Bonding primers are formulated for better adhesion to nonporous surfaces like fiberglass, ceramic and laminate. Wait for the bonding primer to cure. It will appear dry long before the primer has fully set; the primer's container will give you the most accurate drying times, since each manufacturer's formula dries at a different rate.
- 4). Paint the surface with acrylic latex paint. A roller will save you time when painting a large surface. Smaller items and tight spaces are more easily painted with a brush.
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