Coosa Boards

A Coosa Board is a structural panel made of high-density polyurethane foam reinforced with fiberglass. The material is so strong that it is equally or superior in rigidity and light weight advantages than plywood. Coosa panels are used throughout the marine, industrial and transportation industries and boat builders usually put "Certified Coosa Board" decals on the surface of their boat!

Blue water has woven fiberglass that makes it more structurally sound, 2 types of fiberglass in it does have less than 1.5% water absorption rate, not going to get rot.

Nautical Panels have outstanding physical properties from the use of continuous strand fiberglass reinforcements also has a very low water absorption, 1.5%. Removing the woven roving layers found within the Bluewater series leads slightly lower flexural strengths, yet lower costs. Stable, and tough under normal and non-abusive use.