interesting. Never heard of the 20... or paid attention to the actual heat ratings.
From personal experience the other 3M (77/90) fail prematurely in headliner applications. Adhering to garage door panels as well....
Weldwood Landau has proven so far to be in a different league..
High Temp Engine Compartment Adhesive Spray 13 oz | Rubber / Molding | Glues | Adhesive and Bonding | Chemical Product | Wurth USA
High-Temp Engine Compartment Adhesive Spray Description Engine compartment contact adhesive designed for bonding hood silencer pads, heavyweight headliners and vinyls where high strength and heat resistance are needed. Bonds metal, wood or plastic. Will hold up to tem- peratures of 200°F...
www.wurthusa.com
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Edit: The Wurth product is 3 can minimum and $25 EACH! Not Wurth it.
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