3M™ Cavity Wax Plus 08852 is a non-hardening, self-healing corrosion protection coating for internal auto body panels and structural enclosures, as well as new replacement parts.
It is designed to cover and seal internal joints, hem flanges and other areas where OEM e-coat may be compromised. It will not chip, peel or crack. Use the 3M™ Cavity Wax Plus Wand Kit for 360° coverage.

Access hard-to-reach places when applying corrosion protection coatings.
Protects Against Corrosion in Internal Automotive Panels
Developed specifically for corrosion protection on internal automotive panels and structural components, our 3M™ Cavity Wax Plus 08852 is formulated to coat and seal areas such as door skins, rocker panels, interior quarter panels and frame rails. It is excellent for use wherever OEM e-coat may be compromised during the repair process, as well as on new replacement parts. It is formulated for use on bare or primed automotive metals including steel and aluminum to protect critical interior joints, hem flanges and repair welds where moisture can form over time. The non-hardening internal corrosion protection material remains soft and pliable and will not crack, chip or peel.

Spray-on material applies quickly and easily from an aerosol can, and eliminates the need for bulk spray equipment. Use 3M™ Cavity Wax Plus with our 3M™ Cavity Wax Plus Applicator Wand Kit (PN 08851, sold separately) in hard-to-reach locations.