Yes, all Keahana Blanks are waterproof. If you ding them, the PPS foam core resists water absorption better than traditional PU foam, but it’s still recommended to repair dings promptly to prevent damage to the fiberglass or resin layer.

Caxeta wood stands out for its specific qualities:

Lightweight: Like balsa, caxeta is light, which helps maintain the overall buoyancy of the surfboard.

Workability: It is easy to shape and cut, making it ideal for precise surfboard construction.

Flexibility: Caxeta provides a good balance of flex and strength, which enhances the board's performance by allowing controlled bending and recoil during maneuvers.

Sustainability: As a timber tree native to South America, it is often considered an eco-friendly option when sourced responsibly.

These characteristics make caxeta an excellent choice for surfboard stringers where a balance of weight, strength, and flexibility is desired.

PPS foam offers better impact resistance, lighter weight, and maintains its lively flex longer than PU foam. It’s ideal for high-performance boards where durability and strength-to-weight ratio are critical.

Each color represents a unique manufacturing process and material composition. The pressure and density vary by color, offering different performance characteristics tailored to specific surfboard designs.

Sanding PPS blanks requires care to avoid over-shaping or damaging the foam. Use medium grit sandpaper (60–80 grit) for initial shaping and progress to finer grits (up to 400) for finishing. 

Yes, PPS blanks must be glassed with epoxy resin rather than polyester resin because polyester can melt PPS foam. Epoxy resin offers superior strength, flexibility, and environmental benefits compared to polyester resin.

While the glassing process is similar across colors, variations in foam density may require adjustments in resin application or fiberglass layering to optimize strength-to-weight ratios.

PPS blanks are compatible with CNC shaping machines using both disc cutters and bit cutters. However, ensure proper calibration to avoid tearing the foam beads during cutting.

Sealing PPS blanks isn’t mandatory but can help reduce resin usage and create a smooth surface for artwork or color application. Lightweight spackle or epoxy mixed with Q-cell are effective options for sealing.