Y87bird00

iTrader: (6)

Hey guys ive just begun to sand the spider cracking off of my front bumper to get ready for paint. I started with 120 grit but it didnt look like it was doing much so i went to 80 grit. as you can see in the pictures the yellow is acctual bumper material. My question is, is this far enough? if i get all the cracks to this point is if going to be fine after paint? Would bondo be required? I know the easy way would be buying a new cover but that is way to expensive for me... any help would be great guys! btw if anyody has a cheap drivers headlight lid i would be very interested.

xBrandonx

iTrader: (11)

I'm in the same boat as you

https://ls1tech.com/forums/paint-bod...r-webbing.html

Attachment 728907

HotWhipT/A

iTrader: (31)

You can still see them. You gotta sand until they disappear.

xBrandonx

iTrader: (11)

How far do you sand? You don't want to ruin the shape of the bumper?

HotWhipT/A

iTrader: (31)

You have to feather it out. Your spot may be really small, but your sanded area needs to be huge. It may be too deep to fix. Not sure if you can fix it if it's deep. You'll want to ask a professional painter that has dealt with that before.

98camarols1

iTrader: (1)

are u sanding with block or DA?use 80 grit on DA keep it flat.and sand til they disappear.if you get to bare plastic and they still there then stop.then wht u want to do is fill it with plastic filler.

TransWS6Am

iTrader: (41)

I just went through the same thing on my front bumper, from the looks of it those cracks will come back no matter what. Only solution is a new bumper cover. I had a few cracks that I know are going to come back on my bumper cover, next time I'll be getting a new bumper cover, I've sanded mine down and painted it twice now.

JUSTINSWS6

Sand then do fiberglass filler on the whole bumper then sand flat and paint. Last a long time.

Y87bird00

iTrader: (6)

I'm using a block, haven't gone to far into the plastic so I'm going to keep goin to see if they disappear... Hopefully I don't need to get a new one

JUSTINSWS6

Who makes new ones that fit good?

TransWS6Am

iTrader: (41)

GM, lol. $$$$$$

Y87bird00

iTrader: (6)

If I were to get a new one I would just go for a salvaged one... Good luck Brandon

BLK95-Z

iTrader: (2)

Skim it with fiberglass filler

Y87bird00

iTrader: (6)

Fiberglass filler would go on like regular body filler?

HotWhipT/A

iTrader: (31)

Bondo is a no no on plastic and I'm sure fiberglass filler would be too. Ask a real professional what to do. 3M makes a bad *** plastic urethane repair filler for cracks and filling in stuff like holes. That would be my only guess as to what you might be able to use.

Y87bird00

iTrader: (6)

Thanks for the info, I'll talk to my body shop but until then Im going to sand them the best I can

Revcore66

Absolutely don't use bondo or fiberglass. If it's only a couple small areas, you could use a filler designed for plastic bumpers. I've been using Dominion sure seal semi rigid plastic surgery for ever (over 20 yrs). Make sure you've sanded out the scratches the best you can and then use a good plastic spreader and spread it over the area as smooth as you can. Also make sure you have sanded the whole area with 150 grit paper before the application. You don't really want to be filling scratches that are coarser than 150, especially if you fill over any painted area, which you shouldn't really, unless the bumper has a really thick build up of paint and can't be feathered out easily. Anyway, that's what I would do if I wasn't going to replace the bumper. See what your bodyshop has to say, maybe they have some better advice.

xBrandonx

iTrader: (11)

Keep us updated with pictures, I wanna see how this turns out.

TransWS6Am

iTrader: (41)

And end up in the same boat a few years down the road.

Y87bird00

iTrader: (6)

Will do!