Thermoset Composites

Resins and Substrates

The common characteristic of thermoset resins is that when heated they undergo an irreversible chemical reaction. This reaction is usually referred to as polymerization. After undergoing polymerization the resins cannot be melted. There are fewer than a dozen thermoset resins.

Lingol uses phenolic resin (phenol-formaldehyde, or Bakelite) and epoxies.

Phenolic resins are typically hard and have good wear properties, chemical and heat resistance. Phenolics work best with substrates they can saturate, such as paper and cotton fabric.

Epoxies are most easily viewed as a family of resins. The characteristics will vary depending on the catalysts and promoters used in the formulation. There often is a tradeoff in characteristics. For example, higher heat resistance often results in a loss of toughness or increase in brittleness.

Epoxies bond well to other materials. As a result, the most common substrates are glass and carbon, usually in the form of continuous fibers either woven or unidirectional.

Available Thermoset Resin-Substrate Combinations

  Resin
Reinforcement Phenolic Epoxy
Paper X  
Woven Cotton X  
Woven Synthetic Fibers   X
Woven Glass X X
Uni Glass   X
Nonwoven Glass   X
Nonwoven Synthetic X X
Nonwoven Carbon X  
Kevlar   X
Carbon Woven X X
Carbon Uni   X

Special Capabilities

Laminate Sizes Available

Gauge 0.005 - 3" 0.13 - 76mm
Width to 24" 600mm
Length to 110 yards 100 meters