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QCM INDUSTRIAL |
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ECA - 375 HARDENER ECA-375 imparts heat resistant characteristics together with very good chemical resistance with cure at ambient or elevated temps. This product has low viscosity, high reactivity and has been used extensively in the manufacture of compression molded water skis and wakeboards. PHYSICAL STATE: Low viscosity, straw colored liquid. STORAGE LIFE: At least 12 months when stored in sealed containers at 55 to 85 deg. F.. TYPICAL PROPERTIES: Color (Gardner) 3 Viscosity at 77 Deg. F 100 cps Amine value, mg KOH/g 1,070 Density (lb/gal) at 77 Deg. F 8.6 Flash point (closed cup) Deg. F 217 Equivalent wt per [H] 31 RECOMMENDED USAGE: 15 PARTS PER 100 PARTS OF LIQUID EPOXY RESIN HAVING AN EPOXY EQUIVALENT WEIGHT OF 190. TYPICAL HANDLING PROPERTIES: GEL TIME (150g at 77 deg F) 15 MINS THIN FILM SET TIME 2.5 HRS PEAK EXOTHERM 338 DEGF (100g mix at 77 DEG F) TIME TO PEAK EXOTHERM 21 MINS TYPICAL CURE SCHEDULE: i) 2 - 7 DAYS AT AMBIENT TEMPERATURE. ii) GEL AT AMBIENT TEMPERATURE PLUS 2 HOURS AT 212 DEG F. TYPICAL PERFORMANCE: HEAT DEFLECTION TEMP. 204 deg. F [CURE SCHEDULE (iii)] (ASTM D648 264 psi) BARCOL HARDNESS 78 (MODEL GYZJ-935) BOND STRENGTH (Mild steel to Mild steel) 1,650 psi FLEXURAL STRENGTH, psi 14,650 FLEXURAL MODULUS, psi 35,5000 TENSILE STRENGTH, psi 5,800 TYPICAL PERFORMANCE: TENSILE MODULUS, psi 42,1000 ELONGATION, % 1.6 CHEMICAL RESISTANCE: Excellent against mineral acids, aqueous alkali solutions, water and aromatic hydrocarbons; good against alcohol and certain chlorinated hydrocarbons; moderate against dilute organic acids; poor against ketones and glycol ethers. APPLICATIONS: Compression molding, laminating, general purpose adhesive, chemical resistant floor coatings and structural bonding. HANDLING PRECAUTIONS: Refer to material safety data sheet on ECA-375. e-mail to: roy@qcminds.com
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