Cold-weather pinchweld and encapsulation primer
Officials at Dow Automotive Systems, Auburn Hills, Mich., recently validated the safe use of BetaPrime 5404A Pinchweld and Encapsulation Primer down to 0 degrees Fahrenheit, with a drying time of 12 minutes. Aftermarket technicians can use the primer at temperatures as low as 20°F, with a standard drying time of six minutes, and from 20°F down to 0°F with a fixed drying time of only 12 minutes, according to a release. Previously, Dow Automotive Systems required the bonding surface to be warmed to 40°F or higher before applying BetaPrime 5404A primer.
The primer promotes adhesion to the vehicle body and inhibits rust from small nicks and scratches on the pinchweld. It also performs the functions of three separate primers by activating pre-applied adhesive system (PAAS) beads, promoting adhesion to polyvinyl chloride (PVC) substrates and promoting adhesion to reaction injection molding (RIM) encapsulations, according to the release.Dow Automotive Systems