3M Bondo 912 Liquid Hardener .37 oz
$2.86
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3M Bondo 912 Liquid Hardener is the necessary activating agent used to initiate the chemical reaction that cures Bondo body filler and fiberglass resin. This small, concentrated tube of hardener is essential for achieving the perfect consistency and cure time, ensuring that your filler sets up quickly and permanently without cracking or shrinking. Its liquid format mixes easily and thoroughly into the filler, providing uniform hardening throughout the mixture. It is a critical component for anyone undertaking auto body repair, fiberglass work, or even filling large voids in wood and metal around the shop.
Key Features of 3M Bondo 912 Liquid Hardener
Additional Information
When working with this hardener, remember that the ambient temperature will significantly affect the cure time; use less hardener in hot conditions and slightly more in colder temperatures to maintain a consistent working time. Never mix the hardener directly into the entire container of filler; only mix what you can comfortably apply within 5 to 10 minutes, using a clean, non-porous mixing surface. Always use the specified ratio to avoid cracking (too much hardener) or soft spots (too little hardener) in the finished repair.
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