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interior paint prep

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steve from staten island

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What is the best way or product to use to clean the hard vinyl prior to painting. Im using Herbs interior paint. Should i just use a detergent type cleaner wash and dry or do i need to do something more? Thanks!
 
What parts are you going to spray? I'm not sure what you mean by hard vinyl.
 
Steve,
Wash all the parts well in warm soapy water and rinse well. For the kick panels and a pillar trim
etc. use bulldog adhesion promoter and on the dash pads,armrest etc. use a good vinyl prep like SEM
 
What ever you use. It better be able to remove silicone. So many interior products contain that nasty crap.
 
I need to repaint my dash pad. The thing is: it already has two layers of paint on it. Originally it was black but then was sprayed blue and afterwards Maroon.
To get a perfect match with all my other interior parts I need to paint it again.
Should I remove the existing paint and get down to the black base on the pad? What can I use to remove the old paint? Acetone? I am afraid rubbing with acetone will remove the grain/structure of the vinyl.
On the other hand, I just don‘t want to add another layer on top of the existing. Maybe it will crack or something because of too much..
 
I replaced my dash pad ('68), vents and pillar mouldings and even though they were the dark green it wasn't quite right, Herb's paint was reeally close if not exact. Since I was painting new pieces I just cleaned real good with alcohol and then hit them with adhesion promoter before painting. If I was painting used original parts I would've used the SEM soap or something like that as well..
 
beanhead said:
I replaced my dash pad ('68), vents and pillar mouldings and even though they were the dark green it wasn't quite right, Herb's paint was reeally close if not exact. Since I was painting new pieces I just cleaned real good with alcohol and then hit them with adhesion promoter before painting. If I was painting used original parts I would've used the SEM soap or something like that as well..
Click to expand...

I've just used adhesion promoter for hard plastic parts like the a-pillar mouldings. For the soft vinyl parts I would use SEM vinyl prep.
Unfortunately my "new" dash pad is not factory dyed anymore, it was painted by the previous owner before I got it. This is why I am afraid to just go over it with another new coat of paint. Maybe the painted surface will etch, especially when using a prep. This is why I'd like to get rid of all the old paint that now is on the dash pad to have the blank dash as it was original.
Should I try rub it down with acetone? Will it harm the vinyl material?
 
steve from staten island said:
What is the best way or product to use to clean the hard vinyl prior to painting. Im using Herbs interior paint. Should i just use a detergent type cleaner wash and dry or do i need to do something more? Thanks!
Click to expand...

Steve,
I just did my console and lower door panels on my car. I also used Herbs plastic paint. Here’s the process I used.

1) wash parts with soap and water
2) scuff parts using 3000 grit foamed back 3M pad.(Soak pad in bucket of water).
3) wash parts soap and water
4) wipe parts down using a rag drenched in lacquer thinner and let dry.
5) wipe parts with a tack rag.
6) spray parts with plastics adhesion promoter (DuPont A-2330s)
7) spray your color
8) OPTIONAL spray (2) coats matte clear vinyl spray over the color. (Adds abrasion resistance)

You saw the results when you saw my car on display at Carlisle. It was great to finally meet you.
Hope this helps.
 
Last edited:
El.Padrino said:
I've just used adhesion promoter for hard plastic parts like the a-pillar mouldings. For the soft vinyl parts I would use SEM vinyl prep.
Unfortunately my "new" dash pad is not factory dyed anymore, it was painted by the previous owner before I got it. This is why I am afraid to just go over it with another new coat of paint. Maybe the painted surface will etch, especially when using a prep. This is why I'd like to get rid of all the old paint that now is on the dash pad to have the blank dash as it was original.
Should I try rub it down with acetone? Will it harm the vinyl material?
Click to expand...

I would not use “Acetone” too hot for soft vinyl. IMO I’ve had great results using Laquer Thinner.
 
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