Item # 98049 BRAND: Eastwood

Eastwood Internal Frame Coating Aerosol Black 4 Pack

Brand: Eastwood
In stock
SKU
98049
Eastwood Internal Frame Coating Aerosol Black 4 Pack is rated 4.4 out of 5 by 36.
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Sale $159.97 Reg. $184.99 Save $25.02
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Destroys rust hiding inside chassis, rocker panels and pillars so it won't rust through
  • Product Level Warranty Included
  • 90 Day Returns + 100% Satisfaction Guarantee
  • FREE Lifetime Tech Support

QUESTIONS? Talk to an Expert: 
Phone Icon  800-343-9353   |     Chat   |     Email Us

QUESTIONS? Talk to an Expert:  Phone Icon  800-343-9353   |     Chat   |     Email Us

Description

Internal Frame Coating destroys rust hiding inside the chassis, rockers and pillars so it doesn’t rust its way through.

Stop Hidden Rust with Eastwood

Leave every inch of a classic vehicle rust-free with Eastwood Internal Frame Coating that takes on the toughest challenges. During your restoration, you have almost certainly have applied a car undercoating to stop water and moisture from rusting the underside. However, there’s often rust hiding inside the frame that can ruin the vehicle’s structural integrity. Use our Internal Frame Coating spray to make your chassis rust-free throughout!

This special aerosol spray is both a rust prevention and rust destroyer formula rolled into one. The conical nozzle reaches directly into the frame and sprays in a wide pattern radial pattern to fully cover the surface while reaching deep into the sub-frame. Phenolic resin encapsulates the rust hiding inside the chassis so it doesn't rust its way through and destroy the frame from the inside out. Once this is completed, zinc phosphate seals the frame against additional rust. The entire process is complete within 24 hours so you can confidently continue with the restoration. Watch our Internal Frame Coating video to see exactly how to use our hidden rust cure.

Old frames on vintage or muscle cars are hard to come by, and once you find one, you need to do everything you can to save it. Our frame anti-rust coating spray an affordable way to preserve a chassis so you don't need to search out or fabricate a new one. This spray is available in a black or green finish to stop rust during auto frame restoration before it can reveal itself to the world. Note that three cans will be need for a full frame or truck frame. Learn more about how to use Internal Frame Coating by reading below or contacting the Eastwood experts. We’re here to help you Do the Job Right on every automotive project.

Features:

  • Tough phenolic resin penetrates and encapsulates the rust on the internal surface
  • Zinc phosphate seals it to prevent future corrosion
  • 24" long tube with conical nozzle reaches in to spray coating in a radial pattern for complete coverage
  • Aerosol covers 10 sq. ft
  • Fully cures in 24 hours
  • Perfect for frames, rocker panels, A and B pillars or any hollow and hard to reach areas.
  • Coverage Suggestions: Small Frame - 2 Cans; Full Frame or Truck - 3 cans; Frame + Rockers + Pillars - 4-5 cans

Eastwood Internal Frame Coating

How Frame Coating Works

Please note that some images show the original Green Internal Frame Coating because it shows how the product works and coverage better in pictures due to the high contrast.

Eastwood Internal Frame Coating destroys rust hiding inside the chassis so it doesn't rust its way through. You spend time and money restoring a chassis — but what about all that rust inside the frame? Apply our rust coating spray to make your chassis rust-free throughout! Tough phenolic resins penetrate, convert and encapsulate the rust on the internal surface. Zinc phosphate then seals it to prevent future corrosion.

Eastwood Internal Frame Coating

Each can of Internal Frame Coating comes with a special 24-inch tube that reaches inside the tubular steel bars and frame parts. This tube has a conical nozzle with multiple sprays, which reach outward to completely cover the innards of the metal. Tough phenolic resins in this coating then penetrate and encaps

What's Included

(4) 14 oz Aerosol Cans of Black Internal Frame Coating

Safety Information

Always wear eye, skin and respiratory protection when applying this product. Use in a well ventilated area away from open flame. Store in a cool dry place.



Click here to see safety products

application_ax

Vehicle approximate application coverage requirements. (1) 14 ounce Aerosol covers 10 sq. ft.

  • 2 Cans for sub-frame
  • 3 Cans for full frame
  • 3 Cans for truck frame
  • 4-5 Cans for frame, rockers and pillars
Rated 5 out of 5 by from You'd be dumb not too This is great for not only the inside of the frame but also all of those nooks and crannies you just cant get to. I bought the 4 pack for my Jeep TJ, did half the frame between the floor pans, inside the seat base, you name it and i still have enough to finish of the rest of the frame. Real easy to use to bad the nozzle doesn't come with a tiny camera to see what your doing inside.
Date published: 2025-10-17
Rated 5 out of 5 by from Internal frame under coater Product worked very well with the long hose and nozzle. Was able to get into some very tight spaces
Date published: 2025-10-08
Rated 5 out of 5 by from All good. It's working well so far, I have to see how it holds up.
Date published: 2025-10-06
Rated 5 out of 5 by from She doesn’t like Rusty no more. I know it will do what it claims. A powerful rust deterrent.
Date published: 2025-09-25
Rated 5 out of 5 by from Inside Frame Coating with Nozzle’s I purchased 4 cans to do a Jeep TJ frame. I only needed 3 and used the other on the tub (torque boxes etc). Shake, shake, shake before you start, make sure to plan ahead and get the application nozzle tube straight before you start (heat gun or hang w a weight on it) OR the tube will curl up in the frame. I reused the same nozzle on three cans, working quickly from one can to another, quick shake before spraying. Expect a mess! The product flows (very fluid) and sprays out of every hole in the frame. I did this over a tarp, outside in the shade on a “mid 70’s temp” day. I left the frame in the sun the rest of the day, everything set up. I did retap any threads that had dried product in them. Overall I’m very happy with the product and process.
Date published: 2025-09-01
Rated 5 out of 5 by from Protecting the internal frame areas too! Purchased the black internal frame coating and found it to be high quality providing excellent coverage and adhesion and leaving a hard protective coating that looks good as well. The paint was easy to use with the provided flexible tube that allowed the paint to reach all of the internal areas of the frame.
Date published: 2025-06-14
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what type of prep work needs to be done before top coating this product?

Asked by: dbrewsky
It is important to ensure the coating is fully cured before applying a topcoat for the best results. That is all. Top coat would seem a little tough to get inside a frame also. The product is designed to encapsulate and stop rust effectively on its own.
Answered by: Bill G Tech Advisor
Date published: 2025-11-12

There are some difficult to blast areas where there's rust that has been missed. I'm using this as a primer coat for those areas so, can it be applied over the Eastwood After Blast treatment or do I need to mask and only coat the rusted areas?

Asked by: California72
After Blast should be neutralized with a Pre Cleaner before moving forward with other coatings.
Answered by: Bill G Tech Advisor
Date published: 2025-06-17

Does this dry to a hard finish, or is it soft? Also, can it be painted over?

Asked by: Brian78
This dries to a hard finish, just like a paint. It is the same formulation as our Rust Encapsulator, but it has 1 oz of the product replaced with 1 oz of propellant for easier applcation through the nozzle. It can definitely be painted over, it's great to use it as a primer.
Answered by: Max S
Date published: 2025-04-15

Some of the internals of my frame still has factory paint. Can this be sprayed on top of that? The rust are mainly on the bottom part of the frame internal. The top part still has factory paint.

Asked by: icipi
Yes, Eastwood Internal Frame Coating Aerosol can be applied over areas with factory paint as long as the surface is clean and free of contaminants like grease, oil, or dirt. The product is designed to encapsulate rust and prevent further corrosion, and it can adhere to painted surfaces as well. However, for optimal results, it is recommended to ensure that the factory paint is intact and not flaking or peeling. The coating's phenolic resin and zinc phosphate formula will work to seal and protect the internal surfaces, including areas with rust and those still covered by factory paint
Answered by: Greg A Tech Advisor
Date published: 2025-04-13

I want to powder coat the outside of the frame. Can this take the heat of the baking process?

Asked by: 31Dodge
Tech Support advised me not to exceed 350F so use at your own risk if Powder Coating. I could not find any temperature related information within Eastwood's web site or within the SDS (15275Zz). The TDS was MIA.
Answered by: MjS1
Date published: 2025-04-13

What type of temperature and humidity is tolerable when using the internal frame coating PLUS?

Asked by: EdJl
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Eastwood Internal Frame Coating Aerosol Black 4 Pack
Sale $159.97 Reg. $184.99 Save $25.02
Out of Stock - Due back November 28