Need Bumper painting advice, Flex agents?

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PostPosted: Tue Nov 11, 2008 1:41 pm
It is best to follow paint manufacturer procedures and products.

BUT, i have a distrust for large companies in general. So i'm a rebel
taking chances within "reason." And i've paid...
A man can do all things if he but wills them.

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PostPosted: Tue Nov 11, 2008 3:22 pm
Hey Bk, I remember discussion a similar topic about this stuff a while back on the ********** forum too. I did a bit of research on the bulldog website and I couldn't find anything that suggested the bulldog actually binds your primer/base/clear together.... I think its a bit misleading personally, as far as I can see it just acts as a flex agent when added into your product. Maybe if you get a chance to write out the word for word text off the can I could make a bit more sense of it. I've never had a can in my posession. It does sound good as an AP/flex additive.

Looking good Han, One thing I might suggest though is maybe re-applying a 1k adhesion promotor before your 2k. (unless thats a direct to plastic 2k)

or better yet, maybe put down your bulldog then your 2k sealer.
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PostPosted: Tue Nov 11, 2008 3:43 pm
That's a great idea jimmo! But i rarely do this. It might be great for mobile
repair guys but with a dedicated sealer. A fast epoxy sealer would be good.

Some company is going to come out with a fine, wet sand filler. Might hurt
the "primer" market. But image working from 80 to 1000 with "bondo"
then straight to bc/cc. Hm... :)
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PostPosted: Tue Nov 11, 2008 3:55 pm
that would be nice, fillers are usually a lot cheaper then primers too. Well, polyester anyhow, I don't think so much with bumper adhesive.
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PostPosted: Tue Nov 11, 2008 5:36 pm
Makes Paint stick to Plastic Bumpers

3 in 1
1. Adhesion Promoter
2. Flex Agent
3. Tie_coat

If any plastic surface is involved in the repair area and clolr coat or clear top coat require flexibility, up to 1/3 Bulldog B*F*T Coat can be used in the mix ratio with color or clear..
To add flexibility to the color and clear coat, follow above directions..

Well Jimmo my friend, I know somewhere I have read it could also be added to the primer.. I am thinking it was on clean strips web site.. When I posted the link , I noticed the labels on the cans etc have changed as well as the look of the site to the best of my memory..

So I am wrong, it does not say on the can it can be put in the primer,, It only suggest the color or clear..

With that said, it would/should be no different adding it to your primer... I have been doing it for a long time now, but that of course does not make it right by any standard..

I will look on the site and see if I can find where I found that information.. Hell maybe I dreamed it up or my eyes crossed when i read the can and just mis read.. Anything is possible Jimmo :wink:
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PostPosted: Tue Nov 11, 2008 7:09 pm
I remember seeing on the tech sheets that it can be added to primer to give it flexibility. Its just I've heard some people suggest that adding it to all three ties them together and makes the primer/base/clear adhere better to one another. That's the part I find a bit misleading, they use the term "tie" a lot but I don't think that's what they are referring to.
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PostPosted: Tue Nov 11, 2008 7:19 pm
What else can they be referring to?

It's sorta like adding clear activator to base. Same idea. But i'd rather
kick the base than use BD. The ratios KleanStrip gives (1:4 base & 1:3 clear)
just doesn't "feel" right. I add much less to both base and clear.
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PostPosted: Tue Nov 11, 2008 8:25 pm
Heres the tech sheet on it for anyone who wants to have a look:

http://www.wmbarr.com/ProductFiles/Z0214%20BULLDOG%20adhesion%20promoter%20TDS.pdf

It looks to me like they call it a tie coat suggesting it can be applied over graphics, two-tones to "tie" the colors down. Opinions???
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PostPosted: Tue Nov 11, 2008 10:33 pm
Two-tones, graphics, and adding it to all the coatings would mean to "tie"
it all together. I do know for a fact that the adhesion is excellent when
using it over new raw bumper covers without adding it to base or clear.

Some clears are hard drying and become brittle over time. We've all
seen damaged bumper covers (older OEM covers too) with stress
cracks requiring striping way beyond the damaged area. So, adding
some flex to the base and clear would only help. Primers too.
A man can do all things if he but wills them.

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PostPosted: Tue Nov 11, 2008 11:17 pm
I still don't really think they're referring to a greater bond between your primer/base/clear. As far as I can tell their tie coat is just to protect your graphics when custom painting or wet/smooth the area to blend easier. I'm not really big on custom painting, so I don't know the ins and outs that part.

Their tech sheet says it effectively ties multiple layers of paint together, great for doing flames, custom paint...yadayada.... it sounds like its just referring to basecoat in reference to a tie coat. I'd think it to work no differently then a clear basecoat.

Don't get me wrong, I'm sure this product is excellent as a plastic primer , orientation coat and flex additive. I just don't think by adding this to all of your products your getting any additional benefit other then flexible products.
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