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CRYSTIC ® GELCOAT 12PA
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Catalog excerpts

CRYSTIC ® GELCOAT 12PA - 1

CRYSTIC GELCOAT 12PA Chemical Resistant Iso - NPG Brush Tooling Gelcoat Introduction Crystic Gelcoat 12PA is a pre-accelerated Iso - NPG brush gelcoat and is available in a restricted range of colours. The information contained in this technical datasheet also applies to pigmented versions. Application Crystic Gelcoat 12PA is designed for use in the manufacture of FRP composite tooling. Features and Benefits Crystic Gelcoat 12PA is resilient and heat resistant and can be polished to a high gloss. Formulation Crystic Gelcoat 12PA should be allowed to attain workshop temperature (18º - 20ºC) before use. Stir well by hand, or with a low shear mixer to avoid aeration, and then allow to stand to regain thixotropy. Crystic Gelcoat 12PA 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 The gelcoat, mould and workshop should all be at, or above, 15ºC before curing is carried out. Application Crystic Gelcoat 12PA is a tooling gelcoat and the application should be controlled at 0.5-0.6mm wet film thickness. As a guide, approximately 500-750g/m² of gelcoat mixture (depending on pigment) will give the required thickness when evenly applied. This will allow for any rubbing down which may be necessary during the life of the mould. Additives Crystic Gelcoat 12PA is supplied in a restricted range of colours. This eliminates the potential for mixing errors with small quantities of pigment paste. The addition of fillers or pigments can adversely affect the durability of the mould in use. Recommended Testing It is recommended that customers test all pigmented gelcoats before use under their own conditions of application to ensure the required surface finish is achieved.

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CRYSTIC ® GELCOAT 12PA - 2

Physical Data - Uncured The following tables give typical properties of Crystic Gelcoat 12PA when tested in accordance with SB, BS EN or BS EN ISO test methods. Property Mauvish Cloudy Specific Gravity at 25°C Acid Value Liquid Gelcoat Volatile Content Geltime at 25°C Using 2% Butanox M50 (or Other Equivalent Catalyst) Fully Cured *Gelcoat (Unfilled Casting) Phyisical Data - Cured Property Barcol Hardness (Model GYZJ 934-1) Water Absorption 24 Hours at 23°C Deflection Temperature Under Load† (1.8MPa) Tensile Strength Tensile Modulus *Curing Schedule - 24 hrs at 20ºC, 3 hrs at 80ºC † Curing...

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