Loading... Please wait...

our newsletter

Account Navigation

  • Gift Certificates
  • Wish Lists
  • My Account
  • Order Status
  • Image 1

Cavity Coater

Your Price:


Product Description

Cavity Coater Overview

Cavity Coater is a one-step, super-penetrating corrosion inhibiting coating (CIC) for long term protection on all metal surfaces.

Cavity Coater provides a self healing film which renders over 4000+ hrs salt spray protection (meaning Insane Rust Protection) ...over 4 times the protection of conventional cavity waxes.

Use Cavity Coater with a KBS Cavity Wand to give long lasting protection for those hard to reach enclosed cavities such as rocker panels, boxed frames, inside doors & fenders, deck lids, tailgates...and more.



Cavity Coater Features

  • 4000+ Hrs Salt Spray (Insane Rust Protection)
  • Creeps into Welds & Seams
  • Wicks & penetrates where primers and topcoats cannot
  • Water Displacing
  • Self Healing
  • Easy Application
  • Ultra Long Lasting
  • Multi-Surface Uses
  • Forms Capillary Action
  • Lubricating properties
  • Minimizes parts replacement costs
  • Enables faster dis-assembly when repairs are needed
  • Protects against carbon fusion
  • Resists alkaline solutions, most chemical & acid vapors, road salt, steam, salt water.

Cavity Coater Applications

Automotive: Boxed frames • Rocker panels • Inside doors • Inside car & trailer frame rails • Windshield cowls • trunk lids • Hoods • Inside A-Posts • Inside B-Posts • Inside front & rear fenders & Inside tailgates • Back sides of bumpers • Weld seams (Wicks into welds & seams) • Insulating between unlike metal surfaces • Use wherever a typical cavity wax would be used.

Anti-Seize/Anti-Corrosion: Nuts, bolts & screws • Shafts • Pipe fittings • Gaskets • Press fit assemblies • Valve assemblies • Taps & drills • Pump mountings • Packing glands • Chain drives • Metal fittings • Machinery

Cavity Coater Coverage

  • Aerosol of Cavity Coater will coat 125 sq. ft. @ 1 mil thickness.
  • Quart of Cavity Coater will coat 200 sq. ft. @ 1 mil thickness.
  • Gallon of Cavity Coater will coat 800 sq. ft. @ 1 mil thickness.

Product Videos

The KBS 3 Step Rust Prevention System Featuring KBS System Sampler & Cavity Coater (11:12)
Check out how we use The KBS 3 Step Rust Prevention System to fix some rust spots on the bottom of our car doors and how to seal up the inside of the car door with Cavity Coater. The System Sampler has everything you need to get started & try out our complete KBS system! A full 1/2 pint of RustSeal will cover an approx. 12 sq. ft. area with 2 coats. http://www.kbs-coatings.com/System-Sampler.html Cavity Coater: http://www.kbs-coatings.com/Cavity-Coater.html
  • The KBS 3 Step Rust Prevention System Featuring KBS System Sampler & Cavity Coater
    Check out how we use The KBS 3 Step Rust Prevention System to ...

Find Similar Products by Category

Product Reviews

Write review

  1. Works Great, Wand is Superior

    Posted by Reviewed by: Paul Borsari from Brewster, MS on 9/27/2018 on 15th Feb 2020

    This product works very well. I followed the directions as per System Sampler video on You Tube for fixing the pinch welds on my truck doors and tailgate. I may have used a bit too much, as I did have more weeping from the door drain holes, but the wand does provide far superior coverage than does the Eastwood Internal Frame coating (as I have used that product on a different application) and it cleans up easily. I am glad that I found KBS Cavity coater, and it will be the only product I will use of this type. I will be using this also on the lift gate of my SUV. This product is DEFINITELY the way to go.

  2. Preventing rust beats de rusting and painting

    Posted by Reviewed by: Ed from Saint Rose, LA on 12/22/2018 on 15th Feb 2020

    I use this cavity coater on my boat trailer used in salt water. My first trailer (Galvanized steel) just melted with rust after 10 years. I spent $4,000 on a new Aluminum one and have coated this one Steel parts with this product and over the last 3 years I have extremely little rust. This cavity coater works for me.

  3. Outstanding

    Posted by Reviewed by: Lawrence Meggs from Roan Mountain, Tn. on 2/28/2019 on 15th Feb 2020

    Great product, have ordered it twice, shared with my auto body man and is likes it better that the other products he has used.

  4. Works great

    Posted by Reviewed by: Oldplow from Ohio on 12/13/2019 on 15th Feb 2020

    Works great, one can did the entire frame inside. Have another vehicle to do with this great product

  5. Great product. Easy to use & goes a long way,

    Posted by Reviewed by: Oliver from Staten Island,NY on 12/29/2019 on 15th Feb 2020

    So far, I've used KBS Cavity Coater to treat the inner front fender cavities of a '98 Lincoln Town Car. Removing the headlights provided easy access points. I applied KBS Cavity Coater using the extra long wand and the application was fast, easy and painless. The product has a fairly pleasant smell. I chose to apply the product generously but have plenty left in the can to treat the bottoms of the doors and the inner rocker panels. I will likely order a second can for the inner rear quarters and inner frame rails as I plan to treat the entire car. Thank you for putting out a great product in the fight against rust.

  6. Great Solution

    Posted by Reviewed by: Thomas from Satellite Beach, Florida on 2/11/2020 on 15th Feb 2020

    Great solution for hard to get t places. Recently refurbished the roof on my 1964 Mercedes 230SL. There was an "impossible to reach" channel in the back lower portion of the roof. The cavity coater was perfect for the job. I was unable to use the spray head provided but was able to plug the end with a toothpick and drill tiny holes in the tubing. Worked perfectly!

Back to Top

Click the button below to add the Cavity Coater to your wish list.