Mar-Hyde Single Stage Self-Etching Primer Aerosol is a ready-to-use pretreatment and primer that provides a stable surface for primers and topcoats even in hard-to-sand areas. The pretreatment also provides excellent corrosion protection on auto body panels when used in conjunction with automotive paint systems.A Spray-On Layer That Bonds and Protects Mar-Hyde Single Stage Self-Etching Primer Aerosol is great for a variety of small paint prep applications in collision repair. It forms a durable bond with the substrate and promotes adhesion of high build primer and paint systems. This ready-to-spray pretreatment/primer requires no mixing or thinners. It’s fast and easy to use and cures quickly for lower cycle times and higher shop throughput. Better Science for Better Auto Body Work Mar-Hyde - a brand of 3M - brings the science of chemical etching to collision repair with Single Stage Self-Etching Primer Aerosol. This ready-to-use, fast-curing primer and pretreatment creates the solid and stable protection you need in auto body paint prep, and for consistent excellence in your collision repair operations.