Lord Adhesives 320/310-B Epoxy Adhesive System

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Lord Adhesives 320/310-B Epoxy Adhesive System
Categories:	Polymer; Thermoset; Epoxy; Epoxy Adhesive
Material Notes:	LORD® 320/310-B adhesive is a two-component epoxy adhesive system used to bond cured rubber treated with LORD 7701 adhesion enhancer/surface modifier. This adhesive system also bonds metals and plastics, both thermosets and thermoplastics. Features: rapidly cures when heated at 200-325°F (93-162°C). provides good impact resistance down to -40°F (-40°C). contains no solvent, nonflammable and virtually odorless. resists humidity, salt spray and temperature extremes. resists postbakes up to 400°F (204°C). solvent resistant when cured; anti-corrosion processes including phosphatizing and ELPO (e-coat) coatings do not affect the adhesive or its bond strength. All information provided by Lord.
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Physical Properties	Original Value	Comments

Density	10.0 - 11.0 lb/gal	310-B Hardener
	10.3 - 11.0 lb/gal	310-B Black Hardener
	12.5 - 12.9 lb/gal	320 Resin
Solids Content	100 %	both mixtures, both 320/310-B and 320/310-B Black
Brookfield Viscosity	200000 - 700000 cP @Temperature 25.0 °C	Brookfield HBF, Helipath, 5 rpm; 310-B Black Hardener
	230000 - 690000 cP @Temperature 25.0 °C	Brookfield HBF, Helipath, 5 rpm; 310-B Hardener
	300000 - 1.00e+6 cP @Temperature 25.0 °C	Brookfield HBF, Helipath, 5 rpm; 320 Resin

Thermal Properties	Original Value	Comments
Minimum Service Temperature, Air	-40.0 °F
Flash Point	>= 93.0 °C	Seta, 320 Resin
	>= 93.0 °C	Seta, 310-B Hardener
	>= 93.0 °C	Seta, 310-B Black Hardener

Processing Properties	Original Value	Comments
Pot Life	6.00 - 8.00 min	Time to Handling Strength, Mixed with hardener, both 320/310-B and 320/310-B Black
Working Life	0.500 - 1.00 min	Mixed with hardener, both 320/310-B and 320/310-B Black
Shelf Life	24.0 Month @Temperature 16.0 - 27.0 °C	from date of manufacture in original, unopened container, all components

Descriptive Properties
Appearance	Black	310-B Black Hardener
	Grey Paste	310-B Hardener
	Off-white paste	320 Resin
Cured Appearance	Black	320/310-B Black
	Grey	320/310-B
Mix Ratio	1 to 1	by volume, resin to hardener, both 320/310-B and 320/310-B Black
	1.2 to 1	by weight, resin to hardener, both 320/310-B and 320/310-B Black
Mixed Appearance	Black Paste	320/310-B Black
	Grey paste	320/310-B

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