Bondo Blue Cream Hardener Easy mixing produces a quality hardener and filler blend 3M? Dynatron? Cream Hardener is designed for use with 3M? 2-part body filler glazes When used with 3M?, Dynatron? and Bondo? it provides the best performance possible Bondo Blue 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. This hardener is smooth and easy to mix with filler. Use with Our Many Lines of Auto Body Filler3M? Dynatron? Blue Cream Hardener is a hardening agent designed to work with our 2-part 3M?, Dynatron? and Bondo? fillers, putties and glazes. The creamy consistency mixes easily and quickly. Our hardener combines the best of ease of use and quality final results. The hardeners should not be used by themselves.Tinted Colors Help with ConsistencyCream hardeners with tinted colors help you ensure consistency when mixing hardener and filler together. The color of the cream hardener will not affect curing.Formulated to Reduce Chances of PinholesOur cream hardener is formulated and packaged under temperature-controlled conditions to ensure freshness and maximum performance. Mixing auto body filler with our cream hardener is an easy task. To reduce the chance of creating pinholes, avoid mixing in a circular pattern, which can force air into the mix. Mixing should be done in a back and forth wiping or folding motion.See more 3M Fillers, Putties Glazes Industrial Solutions (PDF, 426.5 Kb) (description exceeds maximum possible length)