Black primer as Chassis Black

J

jlwdvm

Member
Can black epoxy primer be passed off as chassis black, semi gloss black, whatever you want to call it. I have to respray my firewall, front sub frame and suspension, under hood, inner fenders, etc since the projects previous owner used flat black and some of the parts are new and in EDP primer. 1969 Firebird.
 
Yes, black epoxy is great for that. Barry recently improved the formula to make it UV resistant as well.

Check out my 34 Chevy Master under the restoration section. The body is all black epoxy in those pictures.

Remember, the wetter you spray it, the more gloss you will have once it dries. The faster it dries, the flatter it will be. You can control this with the amount and speed of your reducer as well as spraying technique. To get a nice semi gloss, I spray it as wet as possible, with no reducer.
 
strum thanks for breaking it down like that. perfect for reference. that should be included in spi epoxy application instruction if it already isnt!
 
Will it hold up long term to UV? I have a quart I was gonna use as guide coat, now I'm wondering if I could use it for the tailpanel on my Chevelle. I haven't found anything specific for SS tailpanels.
 
I'm sure Barry will correct me if I'm wrong, but I think he said it will hold up as good as a mid-grade single stage paint.
 
I was told that even before Barry modified the epoxy for better uv protection, there are people out there that have it on their hot rod for several years with no signs of it breaking down...Strum, I remember Barry saying the same thing as far as uv protection...as good as any mid-grade single stage..
 
Here's the BarryK quote:
Epoxy with uv protection.

As some of you know from the other threads, I have been playing with the UV protection with our epoxy, even though our epoxy (black) has showed us around 5 years life when exposed to the sun where most epoxies die inside of 3 - 6 months, we are making it better!

The black and black only at this point that we made this week has extra UV protection, we still have around 100 gallons of the old batch but that should be gone by middle of next week and we will ship the new. (Quarts will not have for about two months)

I used 1/2 the amount of UV I wanted to but as we go along I will increase, at this point it should last as long as any mid grade SS paint.

You will notice no difference in spraying or drying or handling the epoxy with this addition as I have tested and retested but reason I cut it in half is just to make sure the epoxy is still bullet proof.

I have no plans to add it to the other colors as they are never exposed as an topside paint but our black epoxy has been used as hood strips on cudas and rat rods so the protection was warranted.


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[QUOTE='68 Coronet R/T;n13991]Here's the BarryK quote:
Epoxy with uv protection.

As some of you know from the other threads, I have been playing with the UV protection with our epoxy, even though our epoxy (black) has showed us around 5 years life when exposed to the sun where most epoxies die inside of 3 - 6 months, we are making it better!

The black and black only at this point that we made this week has extra UV protection, we still have around 100 gallons of the old batch but that should be gone by middle of next week and we will ship the new. (Quarts will not have for about two months)

I used 1/2 the amount of UV I wanted to but as we go along I will increase, at this point it should last as long as any mid grade SS paint.

You will notice no difference in spraying or drying or handling the epoxy with this addition as I have tested and retested but reason I cut it in half is just to make sure the epoxy is still bullet proof.

I have no plans to add it to the other colors as they are never exposed as an topside paint but our black epoxy has been used as hood strips on cudas and rat rods so the protection was warranted.


​
[/QUOTE]

So Barry, as you have gone along since this post in 2011, have you increased the amount of UV protection in your black SPI Epoxy or has it stayed at the same level you were using in 2011?
 
Bumping this as I have the same question but with the white primer. I have some aluminum window frames I'm redoing and the white is perfect and the adhesion is amazing. Of course if there is no UV protection then I will have to top coat but I would rather not. So Have any changes been made on the white epoxy in regards to UV?

Thanks
Derek
 
I've got all the colors maxed out! One thing I will say if you are using it for trim pieces or tail panels, the most important thing you can do is induce for 4 hours or over night, this will eliminate the humidity effect and extend the fastness big time.
The party doing the big 3 trim pieces are keeping 5 quart painters pails full at all times as they may do 200 pieces in a day min or more.
 
Barry said:
I've got all the colors maxed out! One thing I will say if you are using it for trim pieces or tail panels, the most important thing you can do is induce for 4 hours or over night, this will eliminate the humidity effect and extend the fastness big time.
The party doing the big 3 trim pieces are keeping 5 quart painters pails full at all times as they may do 200 pieces in a day min or more.
Click to expand...

My brain is slow this morning..... So you're saying the black epoxy is factory in brand new cars from the big 3?

But but but I've never seen a magazine ad from Ford 'certifying' SPI lol
 
My understanding of the black epoxy was Barry explained that people were using it as the flat black accents on hoods, so instead of telling them they should use a polyurethane, he made the epoxy better. I believe the last term he gave was expect 5 years before it starts to powder. Compare that to other black epoxy out there that will be chalky in 6 months in sunlight.

Personally, if the sun is going to hit it, the paint should be a polyurethane. If not, firewalls, undercarriage, go nuts with it.
 
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