Rubberized Under Coating

Metal Protective Coating

item(s): 49308

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POR-15 Rubberized Under Coating is a flexible, paintable, textured black coating. It is the only undercoating with POR-15 Rust Preventive technology and will protect against moisture, salt, chemicals, dust, heat, and cold. This rubberized paint for metal is an excellent moisture barrier for application over auto body repairs and creates an effective sound barrier that reduces vibration and deadens sound in wheel wells, quarter panels, fenders and under carriages. This undercoating spray paint provides superior adhesion to both painted and unpainted surfaces. POR-15 Rubberized Under Coating has superior resistance to road salt and will resist chipping and abrasions. May be used to insulate against engine and muffler noise, protects against dust penetration, and exhaust fumes.

POR-15 Rubberized Under Coating can be applied directly over POR-15 Rust Preventive Coating for the toughest rust, corrosion and moisture barrier possible along with excellent sound and vibration deadening.

POR-15 Rubberized Under Coating Directions

POR-15 Rubberized Under Coating

WARNING: Cancer and Reproductive Harm -

Customer Reviews

Based on 5 reviews
Jackson Pfeifer
Worked great

It was a bit messy coming out of the can since it’s a thicker fluid but it went on well and covered well. I used it on the wheel wells of my truck and I should have ordered more than one can, I’ll definitely be ordering more. It looks great once dried and it was really easy to do. Only reason for 4 stars was because it clumped up in spray nozzle and I lost a decent amount due to that but outside of that no complaints here.

Thomas Higgins
Great Product

Seems to work as advertised

Nick Cerracchio
Great paint

I used this to undercoat my truck frame, it seems to be holding up great, I love it !

Don Knight

Rubberized Under Coating

Peter Connolly
Great stuff

I purchased this for my 1995 jeep Wrangler restoration and have found that the POR 15 undercoating spray is outstanding. Along with the POR 15 frame paint I hope to have things wrapped up soon. Thanks for your amazing product and professional support team.


Remove all loose rust, dirt, grease and wax from surfaces to be coated using POR-15 Cleaner Degreaser, diluting solution 5 parts water to 1 part POR-15 Cleaner Degreaser. Bare metal should be primed or for best results coated with POR-15 Rust Preventive Coating. Surface must be clean and dry.

  1. Shake well for at least 1 minute once mixing ball begins to move in can.
  2. Spray from a distance of 12 – 16 inches from surface applying in uniform coats.
  3. Allow coating to dry for 1 hour before touching. May recoat at anytime if necessary.
  4. To prevent spray valve from clogging after use, turn can upside down and spray for about 3 seconds or until free of material.
  5. AFTER USE: Empty aerosol cans are recyclable or may be discarded in regular trash pick-up. DO NOT incinerate or compact.