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Our doors are manufactured by the Pultrusion Method. A machine process that pulls resin saturated glass fibers continuously through a heated die forming a monolithic bond around a urethane foam core and pultruded FRP stile. This one piece constructed panel is free of bonded joints, metal fasteners and metal reinforcing plates.There are no side seams therefore delamination is eliminated. Top cap and bottom cap are FRP profiles, structurally bonded and fully sealed. Surface skins are 1/8" thick and consist of a combination of continuous strand and knit mat. Integral stiles are 9/16" thick solid fiberglass along both sides the entire length of the panel making it possible to prep for butt hinges or a continuous hinge at any location along the stile. The core is 3 lb density closed cell urethane foam.

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Physical Properties
Reinforcement to Matrix Ratio 65/35% by weight
Tensile Strength 55,000 psi ASTM D638
Compression Strength 50,000 psi ASTM D695
Flexural Strength 50,000 psi ASTM D790
Flexural Modulus of Elasticity 3.5x106 ASTM D790
Coefficient of Thermal Expansion 5.5x10-5 ASTM D696
Insulation Factor ( approx.) R9


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©2007, Universal Pultrusions, LLC.