Self-Etching Primer - Inter-Coat Primer - Bare Metal Primer

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Customer Reviews

Fusion SEP Overview

Looking for a FAST drying and easy-to-apply inter-coat primer that allows you to quickly topcoat RustSeal or any other basecoats? We have exactly what you need ... FUSION SEP!

Fusion is an all-purpose self-etching primer ideal for promoting adhesion between multiple surface coatings, including applications of topcoats and primers or over fully cured RustSeal.

Fusion SEP is also excellent as a direct-to-metal primer for priming bare metals such as steel, brass, aluminum, and most hard plastics.

Fusion SEP allows you to topcoat over a smooth rock hard RustSeal surface that’s been in place for months or years! Just apply a thin covering coat of FUSION SEP then topcoat as desired.

Fusion SEP can be sprayed or brushed on almost any painted surface and is ready for a topcoat in 1 hour. Fusion SEP is available in a convenient aerosol as well as pints, quarts and gallons. Satisfaction guaranteed!

Fusion SEP Features

All-purpose direct-to-metal and inter-coat self-etching primer
Promotes adhesion to almost anything
Bonds to fully cured RustSeal
Ready to topcoat in 1 hour
Withstand temperatures of up to 250F.
Direct to metal
Substrates: Bare steel, aluminum, galvanized, copper, bronze, GRP, SMC, fiberglass, polyester filler, OEM surfaces

High Build Note: Fusion SEP is not a high build primer. For a High Build Primer, please Check Out KBS 2K DTM Build Primer.

Flexible Surfaces Note: Fusion SEP is not designed for flexible surfaces like flexible plastics. For flexible surfaces like flexible plastics, please Check Out Fusion FPP (Flexible Plastics Primer).

Click HERE to Find Answers To Your Questions

Fusion SEP Coverage

Aerosol of Fusion SEP covers up to 35 sq. ft.
Pint of Fusion SEP covers up to 50 sq. ft.
Quart of Fusion SEP covers up to 100 sq. ft.
Gallon of Fusion SEP covers up to 400 sq. ft.
5 Gallon Pail of Fusion SEP covers up to 2000 sq. ft.

Fusion SEP Directions & Technical Data

Click HERE to Find Answers To Your Questions

Rating Snapshot

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Average Customer Ratings

4.9

Reviews Sorting

Trailer

Kbs looks great time will tell if it does what it supposed too love the the product so far but doesn’t go as far as they say.

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Reviewed by: Rob from New castle,pa on 9/14/2022

Fusion Primer May Clear Coat it and Done

Really impressed with the Fusion Self Etching Primer on my 1986 Ford Bronco Restoration project. It goes on very nice, I have put on several coats building it up and have flashed it with the KBS Thinner and really smooths out and lays down nicely. The mat finish and color green is perfect for the latest 4x4 colors as a lot of new 4x4s are matt finish in the camo tan and green. Its rust free and sealed right with KBS good quality products. I don't want to be doing this again in a few years and with the KBS system it will last years and be properly protected.

Did you find this helpful? 1 of 1 Found Helpful

Reviewed by: 09HD from League City on 7/14/2021

Great primer

Primer goes on easy and saves time in between Rust Seal and Top Coat. The primer allows you to not babysit the Rust Seal drying before applying the Top Coat to where you can come back to the project in the next couple of days and not having to sand or score the previous application for proper adhesion.

Did you find this helpful? 0 of 1 Found Helpful

Reviewed by: BRANDON from wright city on 4/6/2021

It Sticks!!!

Getting paint to stick to brass & copper was impossible until I started using KBS Fusion - Self-Etching Primer. My live steam locomotives have lots of tubing & fittings, & until I started using Fusion, the paint simply rubbed off, now thanks to Fusion IT STICKS.

Did you find this helpful? 5 of 7 Found Helpful

Reviewed by: Steve from Tanner WA on 8/16/2019

Good primer

Used this on a few projects. Works as advertised and seems to work well for my needs.

Did you find this helpful? 2 of 4 Found Helpful

Reviewed by: Brad Maxwell from Thornton on 7/23/2019

Great for new aluminum

I used this primer on new mill finish aluminum sheet and top coated it with MAXX. Worked great! Easy to spray (I'm not a painter by any means! ) definitely will use again!

Did you find this helpful? 4 of 6 Found Helpful

Reviewed by: Ben from Mt Orab, OH on 6/19/2019

product

I love your product it does every thing I want

Did you find this helpful? 1 of 3 Found Helpful

Reviewed by: m&jauto from faifax ia on 3/27/2019

Great Primer

Made applying MAXX over Rustseal so much easier in the hard to reach areas. Really bit into the Rustseal.

Did you find this helpful? 1 of 3 Found Helpful

Reviewed by: Michael D from Mason City, IA on 3/13/2019

Great adhesion

I built a welding table this year and top coated it with there product but they recommend putting this primer on first for best adhesion. I followed the direction to the t and found they were right it is a very tough strong primer well worth the price. I top coated it and have hammered on it welded on it and still no issues. thanks for the advice guys.

Did you find this helpful? 3 of 5 Found Helpful

Reviewed by: adam from lake ronkonkoma, ny on 6/23/2017

primer

Primer was easy to use and when on without any problems. Good product

Did you find this helpful? 1 of 3 Found Helpful

Reviewed by: ken from orratnna pa on 6/5/2017

great worked great

I liked it

Did you find this helpful? 1 of 4 Found Helpful

Reviewed by: Dusty O from il. on 11/22/2016

Show Quality Gloss

Used the Motor Coater black on my engine that will eventually go in my show truck! 100% show quality gloss and coverage! Looks awesome!

Did you find this helpful? 6 of 8 Found Helpful

Reviewed by: Lynn M from Lawton, Ok on 11/6/2016

lays down great

goes on smooth and covers rust seal perfect

Did you find this helpful? 2 of 4 Found Helpful

Reviewed by: Greg L from pace,florida on 1/2/2014

Great product, easy to use

Definitely coats better than any self etching primer I have used in the past. It makes a job easier as you can use less coats as compared to other brands. Make sure you have good ventilation as it does have a strong odor.

Did you find this helpful? 1 of 1 Found Helpful

Reviewed by: Lance from Detroit, MI on 5/30/2013

Fusion self etching primer

We do primarily electrostatic refinishing, using very high end Ransburg onsite elctrostatic equipment. occasionally we need to use a product that can't be shot out of our #2 handgun and we then use a Titan HVLP turbine unit. In this instance our customer had ordered 16 sliding doors for the entrance to a grocery store in bare anodized aluminum. They needed the color to be a dark bronze tone. I used your product as the primer, intermediate coat. My top coat was applied electrostatically. A 2-part acrylic. Time will tell as to adhesion. I have high hopes. So far so good

Did you find this helpful? 0 of 1 Found Helpful

Reviewed by: Dale from Atlanta, Ga on 1/29/2013

Looks Tremendous

I painted a 454 block, heads, oil pan, and manifold and it looks tremendous. The blue and aluminum color went on easy and I applied it with a brush without removing the engine. The product went on easy and even, however, you have to take your time and don't rush it.

Did you find this helpful? 4 of 5 Found Helpful

Reviewed by: Brad H. from Erie, PA. on 9/26/2012

Great Product

Goes on easy

Did you find this helpful? 1 of 2 Found Helpful

Reviewed by: Thomas S. from Connellsville,PA on 8/26/2012

User friendly

Sprays and covers well

Did you find this helpful? 0 of 1 Found Helpful

Reviewed by: Chris O from Pagosa Springs, CO. on 2/25/2012

Sticks Great

I am repainting a 1958 chevy impala and I used the rust seal and this fusion primer and it all worked just great. I would highly recomend it and already have to a few others.

Did you find this helpful? 2 of 3 Found Helpful

Reviewed by: FW from Center Mo on 1/26/2012

Perfect for Metal Toys

KBS Fusion Primer goes on smooth and even. Even if I spray a layer that is too thick, the primer tends to level itself, reducing unsightly run marks. Sands easily too.

Did you find this helpful? 1 of 2 Found Helpful

Reviewed by: Bob E from San Francisco, CA on 6/27/2011

Best metal primer I've ever used!

I've used this product on billet aluminium, copper and brass. No complaints. Follow the simple instructions and you get great adhesion with consistent thickness. Accepts enamel model paints beautifully.

Did you find this helpful? 4 of 4 Found Helpful

Reviewed by: Benson M from San Francisco on 3/28/2011

KBS Fusion

We live in an older home. All the hardware on the front door is solid brass (over 60 years old). You can imagine trying to make these look like brass. Using the Internet I came across your product, KBS Fusion. It looked like just the thing I was looking for. And it was. Following the directions I was able to paint the old brass where now it looks like beautiful brand new brass! All I can say is thanks. BJ

Did you find this helpful? 1 of 1 Found Helpful

Reviewed by: BJ Johnson from Selma, AL on 4/30/2010

Very Impressed

I am building an experimental airplane and am using the Fusion self-etching primer on the smaller part. I'm impressed how evenly it goes on and the end result. You've got a good web site and your order turn time was excellent. I'm sure I'll be placing additional orders in the future.

Did you find this helpful? 4 of 4 Found Helpful

Reviewed by: Donald K from Watford City, ND on 10/28/2009

Q: I have a truck frame that still has a lot of factory paint still on it that I know won't last very long. Do I need to strip all the paint off first or and can I go over it with the self etching primer and then coat it with rust seal?

Asked by: Travis - 3/8/2014

A: It would be best to strip off the old coating, but it is not necessary. The best rust protection is always achieved by applying RustSeal to properly prepped metal. But, if you have do not want to strip off the old coating, you can clean the old coating with KBS Klean and scuff it up with 300 grit and then apply RustSeal.

Was this answer helpful? 17 of 24 Customer(s) found this Answer helpful.

Answer provided by: KBS Coatings (3/14/2014)

Q: I have to paint some brass objects (2 will be white & 2 will be black). I was reading that the first thing I need is self-etching primer. Will this work to paint brass these colors?

Asked by: Diane Smith - 2/10/2014

A: Yes, the Fusion Self-Etch Primer will stick to brass and get the brass surface ready for your white or black paint.

Was this answer helpful? 14 of 18 Customer(s) found this Answer helpful.

Answer provided by: KBS Coatings (2/10/2014)

Q: what color is the fusion primer?

Asked by: Dan - 7/23/2014

A: The Fusion Self-Etch Primer is grey in color.

Was this answer helpful? 12 of 15 Customer(s) found this Answer helpful.

Answer provided by: KBS Coatings (1/2/2015)

Q: After using the self-etching primer can I use a enamel paint and clear?

Asked by: James - 2/26/2015

A: Yes, you can coat over Fusion with Motor Coater Engine Enamel and then a clear coat like our DiamondFinish Clear. Just let the Fusion cure for 30 minutes and then apply the Motor Coater over the cured Fusion.

Was this answer helpful? 10 of 12 Customer(s) found this Answer helpful.

Answer provided by: KBS Coatings (2/26/2015)

Q: What color is the Fusion aerosol self-etching primer?

Asked by: James Otis - 5/2/2015

A: Fusion Self-Etch Primer is a medium grey in color.

Was this answer helpful? 8 of 10 Customer(s) found this Answer helpful.

Answer provided by: KBS Coatings (5/5/2015)

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Fusion SEP - Self-Etching Primer - Inter-Coat Primer - Bare Metal Primer

Select Options and Quantity

Fusion SEP Overview

Fusion SEP Features

Fusion SEP Coverage

Fusion SEP Directions & Technical Data

Rating Snapshot

Average Customer Ratings

Q: I have a truck frame that still has a lot of factory paint still on it that I know won't last very long. Do I need to strip all the paint off first or and can I go over it with the self etching primer and then coat it with rust seal?

Q: I have to paint some brass objects (2 will be white & 2 will be black). I was reading that the first thing I need is self-etching primer. Will this work to paint brass these colors?

Q: what color is the fusion primer?

Q: After using the self-etching primer can I use a enamel paint and clear?

Q: What color is the Fusion aerosol self-etching primer?

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