The Fibrwrap TM System utilizes two options of primary fiber, e-glass or carbon. SEH51 uses e-glass and aramid fiber suspended in an epoxy matrix. Ultimate tensile strength values are 80 ksi. The ultimate strain of the SEH51 is 0.02 with a modulus of elasticity of 4000 ksi. Aramid is the supporting fiber woven at 90oto provide strength in that direction of 6.0 ksi. Coefficient of thermal expansion of the SEH51 system is 4.3 x 10 -6 . SCH-41 uses carbon & aramid fiber suspended in an epoxy matrix. Ultimate tensile strength values are 150 ksi. The ultimate strain of the SCH41 Carbon System is 0.012 with a modulus of elasticity at 10,000 ksi. The coefficient of thermal expansion of the SCH41 carbon system is 0.2 x 10-6 . These materials are manufactured and installed in accordance with ICBO AC125.