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Eastwood After Blast Metal Prep is rated 4.5 out of 5 by 32.
Rated 5 out of 5 by from Works as advertised! This product does exactly what it says it will do. So many products today do not work like the ad states. If flash rust appears quickly, spray on and wipe it away. I highly recommend it for bare metal prep.
Date published: 2018-01-15
Rated 5 out of 5 by from OK I used according to instructions and it works as described on brake drums (cast iron) and rear leaf springs (steel). Nice gray color before painting.
Date published: 2017-09-25
Rated 5 out of 5 by from Works great Just had all my fj40 body parts media blasted. Used after blast to stop flash rust. It worked as advertised! Also kills the little pin holes of rust that media can't get to. Very happy with product.
Date published: 2016-09-16
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How does after blast materially differ from after weld? Are they both just diluted versions of fast etch?

Asked by: Victor
After Blast is a more gentle version of the Fast Etch and the After Weld. This product does not need to be wiped down with a pre painting solution prior to painting.
Answered by: Scott C
Date published: 2018-08-10

What’s different about this product than fast etch?

Asked by: Adam
After Blast is a more gentle version of the Fast Etch.
Answered by: Scott C
Date published: 2018-08-10

Can Eastwood Seam Sealer be applied directly to After Blast before painting?

Asked by: RadShad
You certainly can apply our Seam sealer over bare metal which has been cleaned with our After Blast.
Answered by: Scott C
Date published: 2018-07-24

Can spray on bedliners be applied directly over After Blast?

Asked by: RadShad
Please keep in mind we only test directly with paints and coatings that we sell. However, if the bed-liner can go DTM it should not be an issue.
Answered by: Kelly H
Date published: 2018-07-24

I will be dustless media blasting mustang on a rotisserie. How many gallons would I need for the car? What primer do you recommend for bare metal with body work to be done after?

Asked by: Jaime
Generally speaking one gallon is enough for the exterior of a vehicle. If you plan on 100% the vehicle inside and out 2 gallons is probably best. The absolute best primer to follow After Blast on Bare metal is our Epoxy primer.
Answered by: Scott C
Date published: 2018-07-20

Should you use bondo before or after applying this product to bare metal?

Asked by: RadShad
You can apply body filler after apply our After Blast.
Answered by: Scott C
Date published: 2018-07-16

How do you wipe sandblasted metal without leaving lint from the rag snagged to it?

Asked by: cudaman
You can use tack rags for this application:
Answered by: Kelly H
Date published: 2018-06-29

After wiping the After blast dry on my sand blasted surface, I scuffed the metal with a red scuff pad out of curiosity and knoticed the fine white power like chalk board dust. Is this safe to prime over? I don't want to ruin a $3000 paint job

Asked by: Rmacedo2010
I would wipe the surface down with a tack rag before applying your primer and paint just to remove any loose particles on the surface but yes this product can be primed or painted directly over.
Answered by: Kelly H
Date published: 2018-06-29
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Eastwood After Blast Metal Prep

Eastwood After Blast Metal Prep

Item #11971ZP Brand: Eastwood

Cleans, degreases, etches blasted metal to improve paint adhesion
Quantity: close

In stock

Only $39.99
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Use "After Blast" after blasting or sanding metal, then paint, prime or powder-coat.

  • Spray, wipe and repeat until clean
  • Aqueous cleaners and phosphoric acid clean and etch the metal
  • Also protects against flash corrosion

After Blast cleans, degreases and etches just-blasted or newly-sanded metal to improve adhesion for painting, priming or powder-coating.

More info...
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About Eastwood After Blast Metal Prep

After Blast is designed to clean, degrease and etch freshly blasted or sanded metal prior to painting or powder coating. Use with a plastic spray bottle to liberally apply to the part, wipe and reapply until all contaminants are removed. The blend of aqueous cleaners and phosphoric acid properly cleans, etches the metal and leaves a zinc phosphate coating that is excellent for paint, primer or powder adhesion. Also protects the metal from flash corrosion for extended periods. Use on all your fresh cast iron, steel or aluminum components.


1 gallon


Use after abrasive, soda blasting or sanding/grinding operations to assure of a clean paint ready metal surface.


Use in well ventilated area and wear rubber gloves


made in USA 1 year shelf life


Use on cast iron steel and aluminum to clean and properly etch the metal for coatings. The phosphoric acid will etch the metal and provide an excellent surface etch for paint adhesion. Use on frames, sheet metal engine blocks and suspension components after blasting. Do not apply to painted surfaces, chrome, plastic or glass.

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