5 out of 5
Product Description
Manufacturer Part Number: 81833
Permatex® Heavy-Duty Rubberized Under-coating is a professional strength, all-purpose undercoat formulated to offer excellent protection, coverage and durability. It combines the flexibility and sealing properties of rubber with superior coating thickness. Primarily designed for automotive frames, rocker panels, and wheel wells. Other uses include sealing gutters, roots, drain systems, tree pruning and almost any area requiring protection.
Seals, Protects, Insulates
Instructions: Directions: For best adhesion, apply to clean and dry surfaces. Tap bottom of can to loosen agitator ball. Shake can for at least two minutes after ball is loose (agitator ball may stick to bottom of can for some time). Apply a uniform coating, holding can 10-12 inches away from surface area. Multiple coatings are more effective. Allow 15 to 20 minutes drying time between coats. Do not apply at temperatures below 50°F. Use mineral spirits or kerosene for cleanup. After use invert container and discharge in order to clear valve and actuator of residue.
Permatex® Heavy-Duty Rubberized Under-coating is a professional strength, all-purpose undercoat formulated to offer excellent protection, coverage and durability. It combines the flexibility and sealing properties of rubber with superior coating thickness. Primarily designed for automotive frames, rocker panels, and wheel wells. Other uses include sealing gutters, roots, drain systems, tree pruning and almost any area requiring protection.
Seals, Protects, Insulates
Instructions: Directions: For best adhesion, apply to clean and dry surfaces. Tap bottom of can to loosen agitator ball. Shake can for at least two minutes after ball is loose (agitator ball may stick to bottom of can for some time). Apply a uniform coating, holding can 10-12 inches away from surface area. Multiple coatings are more effective. Allow 15 to 20 minutes drying time between coats. Do not apply at temperatures below 50°F. Use mineral spirits or kerosene for cleanup. After use invert container and discharge in order to clear valve and actuator of residue.
Attention CA Residents: Prop 65 Warning
WARNING:
This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
Note
This product is not eligible for coupon code discount, for we've been offering the best price in the market.
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Customer Reviews
By no thanks
Date: April 10, 2023
Price is fair at the price I paid, cans spray great and completely empty even to the last drop, to me that's hard to find nowadays, alot of spray cans of other products just spit and sputter with much waste and frustration. This product is very black and adheres well, but its only as good as your prep work like most products of this type.
Rating: 
[5 of 5 Stars!]
[5 of 5 Stars!]
By Timothy D Hall
Date: February 20, 2023
I do my own undercoating and this stuff works, 3rd truck that I have used it on.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By anthony elynot915
Date: August 18, 2022
Great products would buy again
Rating: 
[4 of 5 Stars!]
[4 of 5 Stars!]
By brishardi
Date: August 10, 2022
Good for the price
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By wald64
Date: June 08, 2022
Love it
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]
By S.L
Date: April 27, 2022
Tested on some of spots and it looks good.
Rating: [5 of 5 Stars!]
[5 of 5 Stars!]