3M 00928, Bondo Cream Hardener, 2.75 oz, 7100150392

Bondo Cream Hardener mixes with 2-part fillers, putties and glazes to create high-quality, long-lasting repairs. When filler and hardener are mixed, a chemical reaction occurs to create a mixture that will deliver a strong, lasting repair. Our hardener is smooth and easy to mix with fillers, putties and glazes.