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CRYSTIC FIREGUARD 75PA (IMB) EXCEL Intumescent Fire Retardant Gelcoat for Brush Application Introduction Crystic Fireguard 75PA (IMB) Excel is an intumescent in mould brush (IMB) gelcoat based on an unsaturated polyester resin. Crystic Fireguard 75PA (IMB) Excel is available in standard in white, grey and black only, and the information contained in this technical datasheet applies to all three versions. Other colours can be made subject to a minimum order quantity. Applications Crystic Fireguard 75PA (IMB) Excel is suitable for use in the marine, building and transport industries. Features and Benefits Crystic Fireguard 75PA (IMB) Excel gives outstanding fire protection to FRP laminates which are accidentally exposed to direct flaming. Approvals A properly applied, fully cured coating of Crystic Fireguard 75PA (IMB) Excel on a laminate made from standard general purpose resin can obtain a Class 1 rating according to BS476 Part 7. This combination can also satisfy the requirements of BS476 Part 6: 1989 + A1:2009: "Fire tests on building materials and structure" for a Class 0 structure, as well as achieve and M1 rating according to Epiradiateur NFP 92-501. Formulation Crystic Fireguard 75PA (IMB) Excel should be allowed to attain workshop temperature (18°C-20°C) before use. Stir well by hand, or with a low shear mixer to avoid aeration, and then allow to stand to regain thixotropy. Crystic Fireguard 75PA (IMB) Excel requires only the addition of catalyst to start the curing reaction. The recommended catalyst is Butanox M50 (or other equivalent catalyst) which should be added at 2%. (Please consult our Technical Service Department before using other catalysts). The catalyst should be thoroughly incorporated into the Crystic Fireguard 75PA (IMB) Excel, with a low shear mechanical stirrer where possible. Curing should only be carried out at temperatures above 15°C. The Crystic Fireguard 75PA (IMB) Excel, the surface to be coated and the workshop should all be at, or above this temperature. Application For normal moulding, the application of Crystic Fireguard 75PA (IMB) Excel should be controlled to 0.4 - 0.5mm (0.015 0.020 inch) wet film thickness. As a guide, approximately 550-750g/m² of gelcoat mixture (depending on pigment) will give the required thickness when evenly applied. Additives The addition of fillers or pigments to Crystic Fireguard 75PA (IMB) Excel is likely to affect the cure of this material and is not recommended. Crystic Fireguard 75PA (IMB) Excel - TDS

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Recommended Testing It is recommended that customers test Crystic Fireguard 75PA (IMB) Excel before use under their own conditions of application to ensure the required surface finish is achieved. Physical Data – Uncured The following tables give typical properties of Crystic Fireguard 75PA (IMB) Excel when tested in accordance with SB, BS EN or BS EN ISO test methods. Property Liquid Gelcoat Opaque, Coloured Volatile Content Geltime at 25°C Using 2% Butanox M50 (or Other Equivalent Catalyst) Fully Cured *Gelcoat (Unfilled Casting) Physical Data – Cured Property Barcol Hardness (Model GYZJ...

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