front bumper

[robertha]

Front bumper is off and am in the process of sanding it down. looks good so far. Does anybody know if this rubber bumper needs any sealing before primer. And how many coats of primer should I use? Also Someone posted some pics of a front bumper that they took the waves out of it by attaching some sort of metal runner to the back side of the top part of the nose. If anybody knows who that was please foward. Plan on taking the rear bumper off next. Then the hood. This _hit is fun, it's like art.

[4U2NV1986]

Not 100% sure if the urethane panels require "treatment" before any kind of paint/primer is applied. Contact the boys at Eastwood products on the web, or contact you local body shop supply house for the right junk before you spray anything. Urethane plastic is a different kind of beast, do you homework and get the right stuff just incase.

Good luck on the resto....

[JonM]

Robertha...It was me you are refering to...click on the link in my sig, you will see the plates I installed...No additional sealent is needed for the bumpers. The only thing I did after primer was hit it with a non sand epoxy primer. (I did this to the entire car)

[WhalePirot]

the flex additive may change the color slightly and really only lasts about six months, according to my DuPont pal.

[robertha]

Whaleport,
Sounds like to me that the only thing I need is a good primer, maybe a couple of coats and then get it painted. I am just doing the prep work. What does your buddy at Dupont say about using strippers on fiberglass? Most people on this web site are agianst it but there are a few that say it has worked for them in the past. I guess it boils down to the fact that some times things don't work for everybody no matter what it is. Thanks for your reply and information. I really don'y know much about this stuff so any help would be appreciated.

Robertha

[WhalePirot]

I am NOT a body man, but rely very heavily upon my friend when I want to do some work. I have had some nice results, though. Since he moved, I don't see him too often.

I would visit your local auto paint store and tell them what you are doing and ask what you need to get professional results. there is a LOT of advanced chemistry in the modern paints. Some are 'activated' as epoxies are; others are deadly to breathe. Times have changed since..........never mind.

Stripper can damage the fiberglass resin if you take off too much paint, I've always heard. As long as you stay in the paint layers, you should be fine with this nasty chemical. I used an aircraft stripper last time with good result. If there are not too many layers of paint, I am not sure I would do more than a good sanding, especially color sanding.

Patience in the prep is difficult, but essential. Part of that prep is asking questions of folks who know a whole lot more than I do about paint/body.

[terrykrueger]

JonM,
You didn't use primer surfacer on the bumpers?
If so I may follow your lead.
Terry

[TWINRAY]

If the bumper is like the late '60 "Enduro" bumpers like on my '68 GTO, you'll need either "special" paint for that bumper or like previously said an additive. I used regular primer and paint on my GTO and it cracked. Remember when I painted my wifes '79 Camaro which has "rubber" bumpers that I used something "special." See your paint supplier or call dupont, PPG or whatever. They will know.

[JonM]

Terry ...I used the same NON sanding epoxy primer that I used on the rest of the car.

Originally posted by terrykrueger
JonM,
You didn't use primer surfacer on the bumpers?
If so I may follow your lead.
Terry