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Crystic Fireguard Gelcoat 70PA Oct 2010
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Crystic Fireguard Gelcoat 70PA Oct 2010 - 1

Crystic Fireguard Gelcoat 70PA Low Smoke Fire Retardant Gelcoat for Spray Application Introduction Crystic Fireguard Gelcoat 70PA is a pre-accelerated, low smoke fire retardant gelcoat. It has been formulated for spray application. It is available in a range of colours and the information contained in this leaflet also applies to these pigmented versions. Applications Crystic Fireguard Gelcoat 70PA can be used on both internal parts and external parts for building, transport and general industrial work. Features and Benefits Crystic Fireguard Gelcoat 70PA has good weathering properties and low flammability. Properly manufactured, fully cured laminates using Crystic Gelcoat PD10246PA and Crestapol 1212 with 170phr ATH can achieve a HL2 rating to TS45545-2: 2009 (Firestarr). Formulation Crystic Fireguard Gelcoat 70PA should be allowed to attain workshop temperature (18°C-20°C) before use. Stir well by hand or with a low shear stirrer to avoid aeration and then allow to stand to regain thixotropy. Crystic Fireguard Gelcoat 70PA 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% into the gelcoat. (Please consult our Technical Service Department if other catalysts are to be used). The catalyst should be thoroughly incorporated into the gelcoat, with a low shear mechanical stirrer where possible. Pot Life Temperature 15ºC 20ºC 25ºC Pot Life in minutes 21 15 12 The gelcoat, mould and workshop should all be at, or above, 15 ºC before curing is carried out. Crystic Fireguard Gelcoat 70PA should be allowed to attain workshop temperature (18°C-20°C) before use. Stir well by hand or with a low shear stirrer to avoid aeration and then allow to stand to regain thixotropy. Crystic Fireguard Gelcoat 70PA 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% into the gelcoat. (Please consult our Technical Service Department if other catalysts are to be used). The catalyst should be thoroughly incorporated into the gelcoat, with a low shear mechanical stirrer where possible. Spray Application Do • Gently stir the gelcoat before use by hand or low shear stirrer. • Ensure the gelcoat has attained workshop temperature of 18°C-25°C before use. (Temperatures below 18°C will require higher pressure to achieve an acceptable spray pattern and this will encourage porosity). • Spray at the minimum practical pressure whilst maintaining an acceptable spray pattern and full fan width.

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Crystic Fireguard Gelcoat 70PA Oct 2010 - 2

• Apply a mist coat and then build up thickness in long, even passes of 0.125mm (0.005 inch) until the recommended wet film thickness of 0.5-0.625mm (0.020-0.025 inch) is reached. This will minimise porosity and colour defects. Don’t • Stir the gelcoat with high shear mixers as this will temporarily break down the thixotropy leading to drainage. • Exceed a wet film thickness of 0.625mm (0.025 inch) as thick films encourage air retention. • Apply excessive thickness in corner areas as this can cause pre-release. Typical Properties The following tables give typical properties of Crystic...

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