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Pine Bark Auto · 09-01-2017, 04:15 PM

Found a can still in the shop. It says "3M Professional Grade Rubberized Undercoating" . The part # is 03584. I admit I have not bought any in some time and have not verified its current availability. It sprays on pretty thin and dries to a flat sheen.

09-01-2017, 04:15 PM	#4
Pine Bark Auto Registered User Join Date: Dec 2008 Location: Clover, SC Posts: 55	Re: Firewall Sealant Mystery Stuff Found a can still in the shop. It says "3M Professional Grade Rubberized Undercoating" . The part # is 03584. I admit I have not bought any in some time and have not verified its current availability. It sprays on pretty thin and dries to a flat sheen.