The Coosa Advantage

Over 20 years of Innovative Solutions

For over 20 years, Coosa Composites has provided innovative panel solutions for use in a wide variety of industries. Our specialized panels are constructed with high-density, closed-cell, polyurethane foam impregnated with layers of fiberglass to serve as a strong, reliable alternative to plywood and other traditional unreinforced core materials. Coosa’s panels are durable and can withstand even the harshest environmental conditions. The unique construction of Coosa panels provide multiple advantages over honeycomb, unreinforced plastic or foam cores, plywood and other traditional sandwich core materials:





Coosa Panels Offer Many Advantages:

  • 40 to 60% lighter than marine plywood
  • Virtually no water absorption
  • Superior resiliency and endurance
  • Low resin absorption
  • Can be machined using standard wood working tools
  • Will not deteriorate around fasteners due to moisture condensation
  • Dimensionally stable
  • Will not rot
  • Not susceptible to mold, algae or fungus
  • Can be laminated, painted or spray-coated with a multitude of materials
  • Can be attached to other materials using screws, staples, adhesives, and resins
  • Not susceptible to insect infestation
  • Possesses 2 to 3 times the insulating (R-value) of plywood
  • Excellent bonding characteristics
  • Sanded to enhance lamination
  • No special maintenance required
In addition to these advantages, Coosa panels improve several long-run factors in the industries we serve.

Panel Comparison

A general comparison of 4′ x 8′ x 3/4″ composite panels.
Coosa CompositesMarine Grade PlywoodEngineered OSBPastic Honeycomb
WeightBluewater 20 – 40 lbs.
Bluewater 26 – 53 lbs.
Approx. 70 lbs.Approx. 78 lbs.Usually less than plywood but depends on construction
Water AbsorbtionVirtually None
(Less than 1% avg.)
YesYesNo, but water can get trapped in the honeycomb
R-Value2 to 3 times the R-value of plywoodLess than half of CoosaLess than half of CoosaDepends greatly on the construction of the panel
Dimensionally StableYesNoNoUsually
Susceptible to Rot & MoldNoYesYesNo
Vulnerable to DelaminationNoYesYesYes