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Gurit® Corecell A - Structural Core Material (v10)

Gurit® Corecell A - Structural Core Material (v10)
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Gurit® Corecell A - Structural Core Material (v10) - 1

Corecell™ A-Foam Structural Core Material n Exceptional impact tolerance n Suitable for dynamically-loaded structures n Superior styrene and temperature resistance to linear PVC foam n Highly thermoformable n Ideal for resin infusion Introduction Corecell A-Foam shares the benefits of SAN chemistry common to all Corecell products. Built in toughness – Very high ductility and damage tolerance Environmental stability – High tolerance for heat and chemical exposure Fine cell size – Resin absorbtion is very low, saving both weight and cost Superior uniformity – Low density variation Compatibility – Suitable for use with all polyester, vinylester and epoxy resins Handling – Tough and easy to machine No inhibition - Corecell does not inhibit epoxy curing mechanisms Corecell A-Foam is the original Corecell material, developed because of frustrations with inadequate PVC core technology in marine sandwich structures. Corecell A-Foam is well known for it’s incredible toughness and resistance to cracking, which comes from its high ductility. Corecell A-Foam can elongate up to 65% in shear before failure, making core shear failure in a laminate almost impossible. Tests and experience show that Corecell A-Foam is the most reliable core material for dynamic loading situations where PVC and balsa may fail due to poor shear elongation properties. This reliability has made Corecell A-Foam the preferred choice amongst offshore yachtsmen for twenty years. For the manufacturer, Corecell A-Foam offers the benefit of high resistance to styrene and other chemicals and better thermal stability than linear-PVC foam. Corecell A-Foam is also highly thermoformable, which is useful in many applications where cutting the core material is undesirable. Corecell A-Foam is available in every resin infusion format and is compatible with polyester, vinylester and epoxy resin systems. The low resin absorption characteristics of Corecell and it’s unique knife-cut formats deliver higher performing infusions, low resin cost and low weight. Gurit’s global technical team have 10 years experience in resin infusion and offer on-site support for Corecell customers. This combination makes Corecell a key part of a reliable package. Approvals - Accepted for DNV Slamming and Fatigue Applications - Approved by the US Coast Guard for use as buoyancy foam - Approved by the US Coast Guard for use as sandwich core material in the structures of integral diesel fuel tanks - Type approved by: The American Bureau of Shipping, Germanischer Lloyd, Det Norske Veritas PDS-Corecell A-Foam-9-0311 1

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Gurit® Corecell A - Structural Core Material (v10) - 2

Type Test Method Units A400 A450 A500 A550 A600 A800 Nominal Density kg/m3 69 81 92 103 116.5 150 210 lb/ft3 4.3 5.0 5.7 6.4 7.3 9.3 13.1 Density Range kg/m3 64-74 75-86 87-97 98-108 109-124 140-160 200-220 lb/ft 4.0-4.6 4.7-5.4 5.4-6.0 6.1-6.7 6.8-7.7 8.7-10.0 12.5-13.7 Compression Strength ASTM D1621 MPa 0.6 0.8 0.9 1.1 1.4 2.1 3.9 psi 90 112 135 161 197 308 564 Compressive Modulus ASTM D1621b MPa 41 53 64 72 83 117 217 psi 5950 7620 9290 10450 12040 16980 31490 Shear Strength ISO 1922 Shear Modulus ISO 1922 Shear Elongation 3 A1200 MPa 0.7 0.8 1.0 1.1 1.2 1.6 2.6 psi 102 123 144 157 176...

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