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QCM INDUSTRIAL |
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ECA-408 High Temp. Hardener ECA-408 is a high temp. hardener for use in the laminating of many different substrates. It can be used, for example, in the compression molding of skateboards, snow-skis, snowboards, water-skis or wakeboards. This hardener cures well at elevated temperatures (190-230 deg. F) required for molding of snowboards, whereas many conventional hardeners do not. The long pot life is very useful for complex lay-ups requiring extended work-life. ECA-408 hardener is also used with casting resins like EHV-2911 Aluminum filled epoxy resin, at a ration of 8 parts resin to 1 part hardener. This is cured at room temperature and then post cured for 2 hours at 200 deg. F and then 2 hours at 300 deg. F. A high temperature resistant mold is then obtained. ECA-408 is also used with EHV-0047 high temp. epoxy novalac resin to achieve high temperature properties and excellent chemical resistance. TYPICAL PROPERTIES: VISCOSITY: 92 cps (Brookfield # 2 @ 100 rpm) MIXED VISCOSITY With EMV-0043 : 1005cps (3@20) WT./GALLON: 8.03 lbs. POT LIFE: 44 mins (200 gms) MIX RATIO WITH EPOXY: Mix 100 parts of epoxy (with EEW of 180-190) to 25 phr ECA-408 CURE SCHEDULE 3/16th" casting of above mix: 1-HR. Liquid 2-HR Liquid 3-HR Liquid 4-HR Soft gel / very tacky 5-HR Firm gel / dentable / very tacky 6-HR Solid A-94 / slightly tacky light film 24-HR Solid A-95 / slightly tacky light film 72-HR Solid A-96 / slightly tacky light film SAFETY: See MSDS. E-mail roy@qcminds.com Always use protective clothing, safety glasses and impervious gloves when working with epoxy resins and hardeners. Avoid breathing vapors, ingestion or skin contact. See MSDS for full safety recommendations. |
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