Clearlink® 1080 is an aliphatic diamine chain extender that provides low moisture sensitivity, slower reactivity, heat resistance, excellent stability in UV light, and compatibility with a wide range of polyols, co-curatives, and other polyurethane chemicals. It can be combined with aliphatic isocyanates to produce durable polyurethane and polyurea coatings.
Appearance: Clear, colorless liquid
Specific gravity @ 20 °C (68 °F): 0.86
Flash point, PMCC, °C (°F), IF: 104 (219)
Viscosity @ 40 °C (104°F), cSt: 8
Molecular weight: 282
Equivalent weight: 141;
Primary Chemistry:
Aliphatic Diamine
Clearlink® 1080 is a versatile aliphatic diamine chain extender compatible with various polyols, co-curatives, and other polyurethane chemicals. It can be applied using conventional spray techniques due to its low viscosity. It forms durable, UV-stable polyurethane and polyurea coatings when used with aliphatic isocyanates. When reacted with these aliphatic isocyanate groups, Clearlink® 1080 forms additional urea groups providing excellent strength and heat resistance. It is also recommended for color-critical aliphatic polyurea spray and hand-applied coatings as it provides excellent cure-rate control without altering the formulation color and exhibits low moisture sensitivity and slower reactivity. It is typically used in sprayed polyurea coatings at a recommended range of 5–10 wt%.
Damage from heat and UV light
Short pot life
Use with aliphatic isocyanates in polyurethane and polyurea
UV-light-stable polymers
Color-critical aliphatic polyurea spray
Hand applied coatings
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