The professional wash booth even blow-dries the part so that it removes both water and any dirt on the parts. When choosing a wax or grease remover, you can either choose cleaners between solvent-based or alcohol-based.
Usually, traditional wax or grease removers are solvent-based cleaners, and this solvent gets absorbed into the plastic quickly. On the other hand, the alcohol-based wax or grease removers don't get absorbed into the plastic.
Instead, they flash off. In theory, one would choose the alcohol-based one. But it seems professionals or leading manufacturers suggest to not use the alcohol ones because they flash off and barely do any cleaning. These professionals recommend the solvent-based cleaners despite them getting absorbed. So, the best thing to do when using the solvent one is to wipe quickly before the absorption starts.
The need for plastic adhesion promoters is agreed upon by many. These promoters help open the pores on the plastic so that applying coats of paint becomes easier since it'll adhere to the plastic surface faster. But adhesion promoters have problems too. These have a short time window for adhesion.
You need to act quickly and paint the bumper within a limited time. And the solvents in adhesion promoters are very strong and rich, but it won't help with adhering if it's used over already painted or primed parts. This is how a person misuses the plastic adhesion promoters. These solvents are used only for raw or bare plastic, and that very plastic must be sanded and clean.
An important detail you need to know before painting is whether or not the plastic bumper has a primer on it already. Most people just sand the part to see if any primer dust falls off, but it doesn't always work that way. Thankfully some manufacturers send details or instructions in their packaging when they send their bumpers, and most manufacturers send unprimed plastic bumpers. If you want to choose a good primer, you should go for a water-based primer since water doesn't easily get absorbed by the plastic.
Popular manufacturers prefer water-based primers as well. So in this step, you need to dampen a rag with an enamel reducer and wipe it on the bumper to see how the primer reacts. If you happen to put a run in your clearcoat let it sit up for six hours, wet sand it with grit, apply a little bit of basecoat and apply clearcoat over the top. Locate all of the clips bolts and screw sholding it in place. To remove these clips insert a screwdriver and loosen the male part of the clip, pull up, and then use your clip puller to get under the female part of the clip.
Once you have all of your clips and bolts out, it should come out without much force. If you are having trouble removing it, check again; you might have to remove tail lamps. Remove and transfer any plastic trim from the old bumper to the new bumper. If you have a foam absorber inside the bumper structure and you are having trouble keeping it in place, tape it down temporarily. Once the bumper is attached, replace the bolts out clips you took out in the previous step.
When applying clips take the male part of out of the female; the female part goes in first, the male afterwards. Question 1 year ago on Step 5.
I did 4 coats of clearcoat, waited until the next day, then rubbing compound and polishing compound. Maybe too light on the clearcoats? How much primer paint, touch up paint, clear coat spray do you use for a self paint bumber job? I know each car is different just in general is one can each enough? What the cheapest and minimum sprayer and compressor or can I use an electric sprayer to paint my car bumper because my paint is a special color and it is in a liquid form like the professional?
My bumper is new so and fiberglass. Do you know what temperature you can paint outside in? Please let me know. Hi, I am painting the exact same bumper Mitsubishi Galant How many bottles of paint are required? That is all sandpaper you will need for this repair. Buying an assorted pack will save you money.
Plastic Adhesion Promoter — Not all primers tick well to plastic. This is a special clear primer that is used on plastic parts before primer application. Primer aerosol spray — For this repair gray primer works the best. The closer the color of the primer to the color of the paint, the less coasts of paint you will need to cover it. Touch Up Paint aerosol spray — You need to buy custom paint matching your car. Click on the link and select your color.
Clear Coat aerosol spray — It gives car the shine and protects the paint. Without clear coat, paint will look dull. Auto masking tape and Old Newspapers Prep solvent — It removes oils, road grease, dirt, car wax, and other surface contaminates and also improves adhesion to the surface.
You can use any rubbing compound you like, just make sure it is clear coat safe. You can use it for this repair and also in the future to remove clear coat scratches. Great investment. Optional Items: Aerosol Spray Trigger — I put this item under optional items, however I think it is a must-have when it comes to spray painting.
It turns a spray aerosol can into a spray gun making it easier to apply the paint and clear coat. Microfiber cloth — Avoid using other material such as bath towel, paper towel or wash cloth, as they might leave scratches on the clear coat.
You can use this microfiber towel later for washing and drying a car. It will protect the paint against UV damage. The polisher will pay for itself in just one use. Step 2: Personal Safety I do recommend spending a few dollars on gloves , goggles and mask for self protection. Step 3: Wash the Area Start by washing the surface with warm water. Step 4: Tape off the area Tape off the adjacent panels and the lights to prevent damaging them.
Prep solvent removes contaminants from the area, so make sure to only wipe it on in 1 direction instead of back and forth. Wiping in 2 directions will drag contaminants back into the repair area. Once the solvent is dry, sand the area by hand with grit sandpaper. Consult an auto repair store to find the right adhesive. The kind of filler you use depends on the type of plastic your bumper is made of, which is indicated on the back of the bumper cover with stamped initials.
Call or go in to ask someone at the counter of an auto repair store for some filler product recommendations before purchasing. Plastic types PUR polyurethane plastic rigid and TPUR thermoplastic polyurethane elastomer will turn to powder when they're ground or sanded down. The brand doesn't necessarily matter, but you should stick with the same brand throughout the entire repair process for the best results.
Mix and fill in damaged spots with a light layer of filler. Mix equal amounts of filler and hardener on a clean piece of cardboard. Use a putty knife to smooth the filler into any cracks that are less than 0. This way, when the filler dries and shrinks slightly, the cracks will still be filled. Let the filler harden for 20 minutes, then sand it level by hand. Start with grit sandpaper, then move to grit paper to level out the surface. Finish by wet-sanding with grit paper to smooth everything down to the bumper's natural contour.
Apply 2 coats of flexible part sealer before priming and painting. Use a putty knife to spread the flexible part sealer over the filled-in area. Apply both layers immediately after the other while they're wet. After letting the sealer dry for 30 minutes, you're ready to start priming and painting. Include your email address to get a message when this question is answered.
Once you have painted the bumper, you should polish it regularly to maintain the shine and brightness. Helpful 0 Not Helpful 0. Paint in an open, well-ventilated area. Helpful 1 Not Helpful 0. Related wikiHows How to. How to. Auto Detailing Expert. Expert Interview.
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