primering front bumper
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primering front bumper
I have almost finished sanding the front bumper of my ta down to urethane and I am wondering if i have to use an adhesion promoter to get primer to stick or can I just primer it?
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If you sanded it down to the actual plastic yes you absolutely have to use a adhesion promoter before you primer it other wise it won't stick. If you feather edged it right and didn't go through the factory primer then no you don't.
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As the saying goes if it floats promote! meaning with a razor blade take a small piece off your bumper and gently place into a cup of water if it floats then promote pretty easy but to be safe i would use promoter all ways and remember to use a flex agent added through the whole process that way the paint will resist cracking and rock chips
Ryan
Ryan
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yeah its through the factory primer
the whole bumper was spider webbed to hell and there were at least 2-3 different color paint jobs done on it so it all had to come off.
I am rattle canning the primer do they make one with flex agent in it already
the whole bumper was spider webbed to hell and there were at least 2-3 different color paint jobs done on it so it all had to come off.
I am rattle canning the primer do they make one with flex agent in it already
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Ok if you had to take it down that far I would lay 1 light, 1 medium wet, and 1 wet coat of the adhesion promoter to make sure you get a good bond. As far as primer I personally would use a good quality primer instead of rattle can. Of course your your budget and color of car can make a difference.
I had a Mystic Green T/A and repainted the front bumper and it didn't match worth a damn. Then I resprayed it using a PPG Blue-Green primer and it came out perfect. Just remember a paint job will only look as good as the prep work underneath it.
I had a Mystic Green T/A and repainted the front bumper and it didn't match worth a damn. Then I resprayed it using a PPG Blue-Green primer and it came out perfect. Just remember a paint job will only look as good as the prep work underneath it.
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Sorry I forgot to answer one question. I have not seen a rattle can with a flex agent in it. I always get the at my paint supplier and add it to my sealers, primers, colors, and clears.
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With that color I would go with light grey primer. Then you can lay your color until you get the shade right. SOM is not a dark color so if you use a dark primer it can actually darken the finshed tone.
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there is no need for an adheshion promoter before primer on plastic, if it floats you must promote works on repiaring plastic, import bumpers come raw plastic and a adheshion promoter must be used
if you use ppg ncp 271, i would do dx801 just for that extra bite from the product, but its not nessecary or you can use ppg`s plastic primer another great primer, and that needs no adheshion promter at all
if you use ppg ncp 271, i would do dx801 just for that extra bite from the product, but its not nessecary or you can use ppg`s plastic primer another great primer, and that needs no adheshion promter at all