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  • KBS Patch 
KBS Patch is an easy-to-use, UV/sunlight activated repair patch. The fiberglass-reinforced polyester patch creates long-lasting repairs. Perfect for making watertight, durable repairs on engine parts, decking, fenders, gas cans, drain pipes, water tanks, PVC pipes, plastics, Plexiglas, fiberglass, metal, wood, concrete and more.

KBS Patch

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Product Description

KBS Patch Overview

KBS Patch is very easy-to-use, UV or sunlight activated repair patch. The fiberglass-reinforced polyester construct creates long-lasting repairs.

KBS Patch is perfect for making watertight, durable repairs on engine parts, decking, fenders, gas cans, drain pipes, water tanks, PVC pipes, plastics, plexiglas, fiberglass, metal, wood, concrete and more.




KBS Patch Features

  • Extremely durable fiberglass reinforced polyester/plastic
  • Flexible and waterproof, weather and UV resistant
  • Can be drilled, tapped, sanded and painted in less than an hour
  • Resistant against many chemicals, solvents, and oils
  • Temperature resistant from -40°F to 390°F
  • No shrinkage or expansion during the application or after curing

KBS Patch Applications

Industry: Repair and maintenance of roofs, steps, tanks, pipes, lines, gutters, switch boxes and more.

Automotive, Truck & Transport: Bumpers, radiators, rusted areas and exhausted leaks, fuel tanks and lines, box bodies, headlamp housings, all kinds of plastics (except polypropylene) and body components.

Maintenance: Prototyping, modeling, windows, doors, fences, roofs, drainage lines, pools, sanitation systems, tanks, and various other surfaces like glass reinforced plastic, wood, metal, glass, ceramics, concrete and plastics.

KBS Patch Directions and Tech Info

Very Easy To Use!

Surface should be cleaned, dry and free of any contaminants.

Cut KBS Patch into any size you want without exposing to UV or sunlight.

Remove white backing tape to expose the sticky resin.

Apply KBS Patch to repair area with sticky side down.

Press firmly to repair surface.

Remove transparent film backing and expose to sunlight or KBS UV Light. Curing times depend on UV intensity between 5 minutes (sunny) and 50 minutes (cloudy).


You Can Drill, sand, and/or paint when cured.

Questions and Answers

Q: Should I put RustSeal down first and then KBS Patch? If so, how to I get the KBS Patch to stick to RustSeal?

Asked by: Gene - 5/4/2016

A: Yes, to stop the rust, it is always best to get 2 coats of RustSeal down on the prepped surface (KBS Klean/RustBlast or sandblast) before you apply the KBS Patch. To get the KBS Patch to stick to the RustSeal, allow the RustSeal to fully cure 24 hours and then scuff the RustSeal with 300 grits before applying the KBS Patch to the surface.

Answer provided by: KBS Coatings (5/4/2016)

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Product Reviews

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  1. Fixed Trunk

    Posted by Reviewed by: Sam A from Hialeah, FL on 10/23/2017 on 15th Feb 2020

    When I was wire wheeling my trunk pan, I put a hole in it. Dang! Called KBS and they recommend this KBS Patch to strengthen up the underside and cover the hole. I did that, it worked great. Cured it with the light. Then painted the inside of the trunk with Rustseal. Looks awesome. Feels plenty strong.

  2. works

    Posted by Reviewed by: Greg from Fletcher on 5/14/2019 on 15th Feb 2020

    I have used other brands and been satisfied. We have a paint and body shop and use quit a bit of this product. I though I would order the KBS brand because The other products I have ordered worked very good. I opened the first package and cut out my forms to install and the product felt a little different [the sticky side didn't feel real sticky] then what I have been using. After installing it would not harden in the first hour so I left the light on it overnight and it finally hardened. I almost sent the other package back for a refund but decided to go ahead and use it. The second package was fine, it would stick to the part and cured in an hour. I think the first package did not have enough activator in it but since I had opened and cut a patch I didn't send it back. Overall if all the packages would work like the second one I would buy more but am not sure I can trust all the quality to be the same. Greg

  3. Good product

    Posted by Reviewed by: Chris from Albion on 8/30/2019 on 15th Feb 2020

    Followed instructions,worked perfectly.

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