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West System 205 Fast Hardener is a low-viscosity epoxy curing agent for use when shorter working and cure time is needed or to provide adequate working time at cooler temperatures.
At 72-degrees, 205 Fast Hardener will have a 9-12 minute Pot Life. When combined with WEST 105 Resin in a five-part resin to one-part hardener ratio, the cured resin/hardener mixture yields a rigid, high-strength, moisture-resistant solid with excellent bonding and coating properties.
Not intended for clear coating.
|Mix Ratio, Resin:Hardener||5:1 by weight or volume|
|Pot life at 72 F (22 C)||9 to 12 minutes|
|Cure to a solid state||6 to 8 hours|
|Cure to maximum strength||1 to 4 days|
|Minimum recommended temperature||40 F (4 C)|
|Pumps required||WSY 300, 306-25 or 309|