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SEM Plastic Adhesion Promoter is rated 4.0 out of 5 by 2.
Rated 4 out of 5 by from Works well I don't know if it was the paint or this product which gave me great results with dash knobs but the result was a high quality product. I would recommend this stuff.
Date published: 2014-01-10
Rated 4 out of 5 by from Awesome product Used as a prep coat for a polyurethane lip spoiler. Followed all the directions per mfg with plastic adhesion promoter and black bumper coat paint purchased from Eastwood. The finish came out looking as good as factory with no flaking, chalking, or other blemishes after 4 years with regular outdoor exposure. This is my second can to use on another lip spoiler as my friend used up my 1st can with similarly great results on his car.
Date published: 2015-01-21
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Would i need this product to attach a plastic dash cover to a plastic dash on my 71 camaro, or what would i need for that.

Asked by: Juicebox
This isn't for gluing parts down but ensuring paint adhesion to plastic parts.
Answered by: Scott C
Date published: 2017-12-11

I want to repaint a scratched plastic engine cover that was factory painted silver. Do I need this product to apply on top of the original paint, or do I need to sand down to bare plastic?

Asked by: mikeyce
You will only need to apply this if you sand down to the bare plastic.
Answered by: SeanW
Date published: 2017-11-15

Would this work well to paint a golf cart plastic body?

Asked by: Golf cart project
This adhesion promoter would be perfect to prep the scuffed plastic prior to paint.
Answered by: S Church
Date published: 2017-09-26

Hi I am re painting my plastic bumper it is silver and I need part of it black should I use this product or just sand clean and paint Thanks

Asked by: Habs
Anytime you sand to bare plastic and desire to repaint an adhesion promoter is always recommended.
Answered by: S Church
Date published: 2017-06-09

Im working with HDPE kayak and canoe repairs. Will this work witht he plastics im working on?

Asked by: 3d Dave
This product should work perfect for your application.
Answered by: S Church
Date published: 2017-04-18

Replace rubber on the side step on my truck. The rubber have self adhesive strip that stick to base of side step. Can I spray plastic adhesion promoter on top of clear coat to made strip stick better to base

Asked by: Fatman56
Just wiping the surface down with a wax and grease remover will be better than using this adhesion promoter.
Answered by: S Church
Date published: 2016-10-03

I have plastic flares on my car and they are already painted but the clear top coat is flaking off. I am going to sand the top coat off and I want to paint them with your satin black 2k, do I still need the plastic adhesion promoter and plastic primer?

Asked by: Mick Dundee
As long as you do not break through the existing paint you will not need the adhesion promoter.
Answered by: S Church
Date published: 2016-08-08

Can I use this product on plastic fender flares and then use the polyester high build primer before top coating with single stage urethane?

Asked by: Scrap metal
You can certainly use this for plastic to be able to put a top coat of your choice on.
Answered by: S Church
Date published: 2016-04-06
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SEM Plastic Adhesion Promoter

Item #52366Z Brand: SEM

How topcoats and repair materials adhere to problem plastics

In stock

Only $20.99


How to get topcoats and repair materials to adhere to problem plastics such as PP or TPO

  • Superior bonding properties
  • Topcoat with most refinish products
  • Excellent on olefin based plastics
  • Easy to apply

Plastic Adhesion Promoter increases adhesion of top coat materials to a wide variety of raw plastics.

More info...


(1) SEM Plastic Adhesion Promoter 14.8 oz.


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