How to repair a scratch in a plastic bumper.#diy auto body #garage noise

friend welcome back to the channel my name is chris welcome to another

auto

repair

video if this is your first time here and you want to learn more about your vehicle and how to do diy

repair

s start now by subscribing and clicking the bell not to do it. Don't miss anything, let's start with today's video. I'm going to show you how to remove these

scratch

es. There are some deep

scratch

es on this

plastic

bumper

and what we're going to do is go ahead and repair them. Take you for a ride and show you how I do it and how you can do it at home, so let's get started.

Okay, the first thing we're going to do is sand this down. I've got some 180 grit sandpaper on a little block here and we're going to sand this down and get it ready to put some enamel putty here to fill these cracks here, we're going to remove all the loose

plastic

that's been cut in there. The reason I have a small block is that I want to keep this repair area as small as possible. We're going to mix this paint with this clear, so we don't want to paint the entire

bumper

that we're going to detect in this area.

I'm going to show you how you can do that at home, so some 180 grit sandpaper is not too coarse so it won't cause problems, but it is thick enough to remove this plastic and prepare it well for some Poly Putty. . I'm going to use it first, I'm going to hold it flat and then I'm going to take the edge of this block here and I'm going to take any of these slots out of it to remove the loose plastic that's in there and then we'll look at it. and let's see what it looks like okay let's take a closer look here go look at the group now you can see you actually see the grooves there it looks like it's primed enough to put some polish in here to fill those grooves , OK?

So that's what we're going to do here. We will see that the scratch has almost disappeared. Maybe I'll go over it with a little bit of 320 just to soften it up a little bit before I apply this polish, so let's do that. Now, now I have some 320 sandpaper on this block and I'm just going to clean it up a little bit to minimize these scratches and make it easier to fill because there are still some frayed plastic edges. in those grooves and stuff and this will help clean it up okay let's take a look after I sanded it with 320 as you can see those scratches are almost gone there are some now this is really zoomed in here so just really They look like very deep sand scratches, but they're actually not, they're fine, now I see there are still some indentations here, which is fine, we'll use some polyethylene putty to fill those indentations in the next step. this process is, we're going to fill them, I'm going to clean them, I'm going to use some, you can use some alcohol, isopropyl alcohol or some prep solvent that's a car wax and grease remover, we're going to clean that, probably this whole area here. get it ready and then I'm going to use some polyethylene putty on a razor blade to finally fill it in so let's do that.

I have some of this is polyethylene putty, the brand name is called. frosting, there's the part number, if that's something you want, it's a really good product, it's perfect for this situation. I have a razor blade here and I have a dough spreader, I'm going to stir this and what you want to do. Do you want to fold this? So I'm going to stir it up a little bit and then I'm going to knead it in there and the main thing you want to do is get a consistent color and then depending on what temperature you're going to heat it up, it's going to harden pretty quickly.

You may have four minutes of work time, depending on the hotter it is, the faster it will harden, so you really want to have a plan of action ready when you fill. These you want to know how you're going to do it, of course, it's a very small area and it's going to be very quick to fill it up, so now it's all very well mixed together, so I'm going to take my knife. sheet and I'm going to start at this edge here because wrap this edge those scratches basically I'm just going to fill in the scratches we're just going to go up this hole and you don't have to be real particular about it, you know, do the best you can, you can always sand it down. and put a little bit more so it's not totally crucial, if it's not perfect, we'll let it dry and then we'll sand it with a little bit of 180 just to remove the outer coating and then we'll use a little bit of 320 to finish the sanding on the part of stuffed.

Now what I'm going to do is tape this down. so that we don't accidentally hit it or scratch it when we're sanding, okay, so I'm going to go ahead and sand this. I just have it. I'm just going to use this 320 here, I think. That'll be enough to sand it smooth, so you're good, so I've got some prep solvent here. I'm going to wait for everything. I just wanted to mention while I clean this up that the main thing I did. I don't mention this in the video so I add it because when you block this and sand it, you want to make sure there are no hard edges on the

body

filler before you paint it, you'll be able to see the ones underneath. the paint, so it has to be a smooth transition, a flat transition to the rest of the panel, so that's the most important thing and that's something I want to mention.

Well, I bought some 600 grit wet sandpaper that we're going to wet. sand around this area, okay, so you have 600. I taped this on this bottom area because you don't need to apply primer on this bottom balance or over here, so we're going to tape this off so it doesn't get sprayed. too much. This is how I'm making these papers, taping it here along that edge and then I'll roll it back so it has a smooth edge so that when we print it it doesn't leave a hard surface. edge, so a little bit of that primer will go under this paper, but it won't leave a hard edge, okay, so I lowered the air pressure and volume of my gun, my spray pattern narrowed down to a small pattern and straight, this is the pattern, this is the knob that controls the pattern and then this is the volume that I have, that is the material that comes out, so I have it quite low and the air pressure is turned down hard, so here there's the part where if you don't have a car spray gun you can use a can of aerosol primer, which is fine, it's a lacquer and enamel primer that will work perfectly, you just want to know that it will take longer to dry, so In this part of the video, the primer is dry, so I'm taking some wet and dry 600 grit paper, sanding that primer smooth in preparation for the base paint and then the rest of the area that we're going to clean we're going to use a 1500 grit gray Scotch Brite, so I'm going to apply 1500 grit all over this area here and then we're going to blend the white right there and then there at the bottom, so let's do it right, so I've got this whole area scraped off.

I scraped the edge there really good with a gray Scotch Brite scuff pad around the bottom of this headlight and then down here and then right with those ridges on this

body

line. I'm going to tape that off and roll that part of the edge up. up we're going to blend the transparent right there, so I'm going to paint down on the bottom of this, this ground effect is like the bottom half of this bumper and then I'm going to tape it down and blend it right there, like this that this is all sanding ready for paint primers ready.

I'm going to tape it down from time to time we'll start spraying the color. You're okay, so I have all of this recorded. It's a bit of a complicated tape session. Here I rolled the edge. right on that edge of that lip, so it's going to blow a little bit lighter underneath, of course, I'm going to finish the light right there and I'm going to lighten this color, put it here and then lighten up to that body line right there, right? OK? and then blend the clear right there and wash it off and then blend the clear here, okay, so it's a little tricky.

If you were doing this at home, you could just paint this area and then blend the clear a little. and then wash it with a blending agent or a reducer so basically I have everything sanded and prepped around this area so the clear wood is here but when after spraying the clear it will leave a little bit dry area so what ? What you do is spray a blending agent on it to help it bite in there and then just buff it lightly once you're done to give it a nice transition. Well, here I am starting to apply the color as you can see.

I'm taking my time, I'm just covering the primer first and then I'll gradually blend it into the rest of the panel, but not too much because we don't want the color to spread too much on this panel. Okay, so if we look at this is where I mixed, it's clear that it's a little dry, but I'll be able to polish it at the end with a little bit of compound, you can do it by hand or with a machine, and if you're using a machine, do it lightly on low speeds and don't go away from the mix so don't get into the mix but the finish is very good it's clean the color match is good it has a little dust but this is the first coat of clear.

I'm going to put another layer of clear on top of this a little bit thicker and that will give us more material to work with when we polish and blend it, so let's do that now. I'm putting the second coat of clear here and I'm going to put it on a little bit wetter, so if you're doing this at home and you're using a spray can of clear, get a good 2k clear coat in a spray can and put it on. . your first coat dry to medium and then the second coat after you've let it dry for ten minutes put it on more intensely the last thing I'm doing here is washing in the mixing areas when you do this in At home you will have a spray can with an agent mixer.

Apply it lightly. A little goes a long way. You will run it if you use too much. I hope everyone enjoyed this video. If you have any questions, please leave them in the comments below. If you like working on your own vehicle and want to learn more about how to perform paint and body repairs and mechanical repairs, be sure to hit the subscribe button, share this video, and check out my other how-to videos on my channel. each and every one of you watching, please like and subscribe and we'll see you next time.