I have little experience but can someone tell me what this body kit is made out of I want to say it made out of fiber glass but I searched it up and have heard it’s made of “Kevlar-composite”. Is this kit worth fixing?I think it looks cool!


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After more research I think it might be made of fiberglass reinforced plastic, still not sure. I just want to repair it and install it on my car. This will be a first time project for me using body filler and fiberglass.


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It’s a plastic composite. I have the skirts and once had the rear apron, but it cracked vertically at exhaust exit. Repairs I attempted only lasted for a while.

 

I have spent a lot of time sanding and filling in the rear bumper with body filler:

My goal is to spray primer over it and then vinyl wrap it, I will also vinyl wrap the rest of the car. I think I’m almost done smoothing it out.


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Make sure to use a flexible adhesion promoter.

 

Wait I don’t understand why would I need that would the primer not stick to the bumper?

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Sorry, missed the part that you are wrapping it. Adhesion promoter then primer.

 

Based on my experience primer usually sticks to any surface that is sanded, I’m pretty sure adhesion promoter is used for when spraying a top coat. My main worry is the vinyl might not stick to the primer.


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The promoter should go on the substrate, then everything else you intend to apply on top of that. The adhesion promoter is what keeps everything stuck to it.

I’ve never applied vinyl wrap before but friends have said paint is needed. Can’t confirm or deny.

 

Ok so I get it there is not point of using primer,

So I just buy rustoleam adhesion promoter primer and spray like a coat or two over it and and then vinyl wrap it. I don’t need actual primer, right?


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Threw it away. Still have skirts on one of my W124’s.

 

Wait lorisner makes side skirts?!? I need to find my self those!


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oh nvm is the front, rear bumper and ducktail spoiler from the amg body kit and side skirts lorinser?

 

I haven’t had much free time lately due to school but I just wanted answers from anyone who has worked with body filler bondo, so basically I bought a lorinser body kit in crappy condition, thinking I could give fix it up with some money and lots of labor but I guess I lack the most important experience, I have a vision for my car to vinyl wrap it one piece at a time, and to install a lorinser body kit cause I think it’s beautiful. Here are some pics of my failed progress:

Here it is in my room ready to vinyl wrap completely smooth to the touch degreased with rubbing alcohol and washed with water and dried literally ten times:

I start vinyl wrapping it:

And I noticed every time I pulled the vinyl wrap up to re adjust, it pulled a little layer chunk of bondo and primer with it this frustrates me so much cause all the work I did got undone and in some areas the vinyl wouldn’t stick as well to the primer due to some dust somehow remaining, it was an expensive fail and super depressing to me. It has been left like this in my garage for two weeks and I haven’t bothered working on it cause I’m too busy and not prepared to fail again. My guess is that the crappy body filler didn’t adhere properly to the fiberglass bumper. I have watch tons of videos but I guess most ended up painting it which was much easier on the bondo. I am contemplating taking it to a professional to get it completely fixed but really don’t know if I want to spend too much on it. I will probably start vinyl wrapping ever piece of my car one by one and leave this till later. Here is a pic of when I started:

This bumper was coated in plastidip for some reason I got most of it off, and I started sanding chunks of what looks like to be gel coat cracked off with my nail. They were super brittle. I have never done body work so this is a first for me.


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Here is also a very nice cheap spoiler

I purchased cause I dislike the lorinser one:

In my opinion it looks really nice and I planning on either vinyl wrapping it or painting it gloss black right now I don’t know what it’s coated it in, but the sender said some sort of primer and it needs prep work,

This is the main defect, I am hoping I can use body filler to fix this.


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i kinda doubt its gelcoat, thats used on hard fiberglass such as what boats are made of, and are very thick and very very well bonded to the substrate, while bumpers are usually something more like a PC-PBT (brand name Xenoy).

 

body filler is for thin surface imperfections, not for filling cracks and gaps.

 

Do you have any recommendations to fill that little crack in the spoiler?


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if you can get inside of it, glue some backing material, sand down, fill with body filter, sand, primer, paint. if its actual fiberglass, you could sand it down, epoxy+fiberglass cloth patch it, then sand, sand sand(!), filler, sand, primer, paint. pretty much like patching a fiberglass surfboard or such.