Address : 1575 Lebanon School RdPittsburgh, PA 15122
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- Polyurethane Pultrusion
Liberty Pultrusion manufacturers custom pultrusions utilizing Polyurethane resin technology.
Benefits: Urethane is 40% stiffer than Polyester, this allows for a stiffer profile or reduction in profile thickness by about 25% which reduces the profile weight and maintains the same stiffness as Polyester resin technology.
Advantages of Polyurethane vs Polyester Resins
- Increased Strength
- Improved Transverse properties
- Highest fiber volume
- Higher specific strength and stiffness
- Reduced wall thickness (weight savings)
- Stronger profiles spanning greater distances
- Excellent impact resistance (Polyester has poor impact resistance in comparison)
- Excellent abrasion resistance
- Easy fabrication
- Excellent screw pull out strength (compared to traditional polyester pultrusion
- Much lower smoke generation than Polyester or Vinyl Ester
- Excellent corrosion resistance
- Aliphatic, light stable resins available
- High Tg resin available โ Tg>280 C
- No Styrene emissions, no peroxides, NO VOCs
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