11 Atul offers gel coats in white, grey and blue colours as well as tintable gel coat. The laminating systems have high Tg, variable pot life and viscosity. These are suitable for HLU and RI processes to manufacture small to large moulds | patterns | prototypes. Lapox systems Mixing ratio (resin : curing agent) Mix viscosity1 @ 25 °C Pot life2 @ 25 °C Tg3 Recommendations parts by weight mPa s minutes °C Gel coats ART-21 | AH-326 (T-73 | K-51) 100 : 15 Paste 25 - 30 80 - 90 White coloured system providing resilient and machinable surface with good edge strength. ART-22 | AH-326 (T-94 | K-51) 100 : 8 Paste 15 - 20 80 - 90 Grey coloured system providing excellent hardness and high thermal conductivity. ART-23 | AH-326 (T-96 | K-51) 100 : 10 Paste 15 - 20 80 - 90 Blue coloured system providing abrasion resistance, extreme hardness and good surface finish. ART-24 | AH-326 100 : 15 Paste 15 - 30 95 - 115 Natural | milky white tintable system providing machinable surface with high thermal stability. Laminating systems ARL-138 | AH-417 100 : 30 200 - 300 90 - 150 100 - 110 Offers excellent fibre wetting enabling high productivity. L-552 | K-552 100 : 38 600 - 700 110 - 160 115 - 130 Designed for static and dynamic applications including aerospace, tooling and aircraft repairs. ARL-135 LV | AH-411 100 : 24 250 - 400 90 - 120 125 - 135 Excellent chemical resistance and high thermal stability. ARL-125 | AH-339 100 : 30 400 - 600 120 -150 130 - 140 Long pot life and good thermal stability. Suitable for making large tooling components for wind | automotive industry. ARL-138 | AH-339 100 : 30 400 - 600 120 - 180 130 - 140 High Tg system for manufacturing tools of varying sizes by HLU and RI. ART-17 | AH-454 100 : 40 200 - 300 480 - 530 155 - 165 Extended pot life with high Tg for medium and large tools. ARL-140 | AH-419 100 : 42 2,500 - 3,000 600 - 700 190 - 220 Outstanding thermal performance. Designed for aerospace, defence and wind blade component tools. ¹Brookfield viscosity | ²Pot life of 100 g mix mass | 3Tg: glass transition temperature | Mix viscosity: ASTM D2196 | Pot life: ASTM D2471 | Tg: ISO 11375-2 Features • excellent hardness and surface finish • good abrasion resistance • high thermal stability • variable pot life and viscosity Applications moulds and tools • automotive • boat body • casting • defence equipment • general assemblies • wind blade Tooling systems 10
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