3M Scotch-Weld Metal Primer 3901 Red is a one component, air drying, synthetic resin that is used as a primer for 3M Scotch-Weld film and liquid adhesives. It provides protection against corrosion and environmental exposure; it increases the bonding to glass and metals. 1/2 pt Bottle.
| Typical Use: | Insures complete wetting of film adhesive to surfaces. Simplifies production scheduling by protecting the cleaned surfaces until the bonding operations can be completed. Imparts improved corrosion protection to metal. | 
| Brand: | Scotch-Weld | 
| Chemical Composition: | Synthetic resin | 
| Color: | Red | 
| Flash Point: | 11.1 °C | 
| Specific Gravity: | 0.8 | 
| Spray: | No | 
| Viscosity: | 3 to 8 |