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Trisotech® HD CoverBoard is closed-cell polyisocyanurate (polyiso) foam core integrally bonded to inorganic coated glass facers (CGF) on both sides. Available in 0.5ʺ thick 4ft x 8ft (1220mm x 2440mm) and 0.5ʺ Thick 4ft x 4ft (1220mm x 1220mm) panels. Manufactured in accordance with ASTM C1289, Type II, Class 4, Grade 1 (80 psi (551 kPa) minimum, up to 110 psi (758kPa) compressive strength) and CAN/ULC-S704 Type 4, Class 3.
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