Specially developed for use with West System brand 105 Resin in coating applications where an exceptionally clear, moisture resistant, naturalwood finish is desired. An ultraviolet inhibiting additive improves the resistance of a 105/207 mixture to sunlight, but the cured epoxy surface will still require the additional protection of a quality UV filtering varnish. Designed to self level for smooth finishes, and towet-out and bond fabrics. Although it provides good physical propertiesfor general bonding applications, it is more difficult to thicken and less cost effective for this purpose than 205 or 206 hardeners. It`s also used for laminating veneers where bleed through at joints may be exposed to sunlight. Pot life at 72F (22C)…20 to 25 minutes. Cure to a solid state…9 to 12 hours. Cure to maximum strength…4 to 7 days. Minimum recommended temperature…60F (16C). Pumps required…(3:1ratio) 303, 306-3 or 309-3.