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Old 08-24-2005, 11:31 AM
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Bulldog adhesion promoter.

Is there any reason to use Bulldog adhesion promoter
over some bare metal if you're going to put epoxy
primer over it anyway?

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Old 08-24-2005, 11:58 AM
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I only use bulldog on plastic parts.. if it large areas of bare metal just sand with 80grit.. if its small spots like sand throughs it should be fine without it.. never heard of it being used on metal.
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Old 08-24-2005, 04:15 PM
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If I can speak for whatever company's epoxy you are using,
NEVER and NEVER.
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Old 08-24-2005, 08:38 PM
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Quote:
Originally Posted by jcclark
Is there any reason to use Bulldog adhesion promoter
over some bare metal if you're going to put epoxy
primer over it anyway?
Don't use that adhesion promoter on any metals. Awhile back I seen a website where there was a painter applying Dupont 222S to bare metal and then applying a transparent candy paint. The 222S has absolutely no adhesion value when applied to bare metal. Nothing in the tech sheet or on can instructions indicate the product is for use over bare metal so how did he come up with that idea? I'm not familiar with Bulldog but I assume it is similar to 222S for use over painted surfaces. Bob
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Old 08-24-2005, 09:57 PM
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Bulldog does say on the can you can use it over bare metal, and I have before.. I did not cover with epoxy though, I used a 2k instead... Everything went fine... Just my experience

BK
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Old 08-24-2005, 11:36 PM
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I believe the 222S is a transparent sealer much like SW S65. the S65 will work as an adhesion promoter if you add the hardner like the p-sheet says.
I use it on spot jobs, makes the blends nicer and silvers come out better too.
After sanding with 500 spray it with the sealer and silvers come out nice with no sand scratchs.
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Old 08-25-2005, 05:41 AM
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i have used the bulldog over polished metal before clear. it does make the clear hold onto the metal better but still not great. now, if i have something to do like that i would just use the alsa clear for chrome. only problem is its $500 a gallon but i think the company that makes por 15 makes something similar and its alot cheaper.
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Old 08-25-2005, 01:51 PM
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Quote:
Originally Posted by mrcleanr6
. now, if i have something to do like that i would just use the alsa clear for chrome. only problem is its $500 a gallon but i think the company that makes por 15 makes something similar and its alot cheaper.

I did not think there was anything you could put over chrome or polished metal that would not peel off... Wish I had known that when I used to polish motorcycle frames and parts etc... That would have saved me lots of time and made me allot more money..... Whats the skinny on that kind of product??

BK
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Old 08-25-2005, 06:29 PM
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i have not used either clearcoat product but if i have something that requires this procedure in the future i will definately. when you put anything on top of polished metal you do lose a small amount of luster but there is no maintainance. you just have to decide what you think is important. i have heard the alsa clear 4 chrome is really good and bonds like crazy so you dont get chipping or peeling.
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