Filler Hardeners

Bondo Traffic MEKP Hardener is specifically formulated for use with loop sealants. Use our hardener with two-part polyester loop sealants, such as Bondo Flexible Traffic Detector Loop Sealants, to complete the chemical curing process.

3M 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...

Bondo All-Purpose White Cream Hardener is specially designed to be used with Bondo All-Purpose Putty. When the filler and hardener are mixed, a chemical reaction occurs to deliver long-lasting home repairs and professional looking results.

Bondo Liquid Hardener mixes with Fiberglass Resin and Bondo Metal Reinforced Filler to create high-quality, long-lasting repairs. When hardener is mixed with product, a chemical reaction occurs to create a mixture that will deliver a strong, lasting...

Bondo Liquid Hardener mixes with Fiberglass Resin and Bondo Metal Reinforced Filler to create high-quality, long-lasting repairs. When hardener is mixed with product, a chemical reaction occurs to create a mixture that will deliver a strong, lasting...

The original Bondo hardener, Bondo red cream hardener when mixed with Bondo 2-part Filler products, provides amazing, long-lasting automotive repairs.