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Has anyone repaired a textured bumper before? I only mean a bit of pebble rash as pictured. I'm curious on real world experience not internet videos.  |
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VIP
South East
Posts: 8,293
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Heat gun and one of those green washing up scouring pads or a scotch brite pad.
Apply heat to the affected area to soften the plastic and dab the pad onto the area. Keep redoing this until it levels and textures the area.
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Heat gun and one of those green washing up scouring pads or a scotch brite pad. Apply heat to the affected area to soften the plastic and dab the pad onto the area. Keep redoing this until it levels and textures the area. Would you sand it first ? |
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Try not to sand it or will never be same
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The way that trade undertakes this repair is: Prepare damaged area, degrease & lightly key - repair area by applying a high quality flexible filler - sanding back to the correct profile when dry - apply a textured bumper spray (available in aerosol from all good automotive refinishing factors or you can find it online) - blend the texture with existing bumper texture - lightly sand back when dry if required to achieve the correct texture and then paint with a matt black / matt colour to match existing - done this way you will achieve a high quality repair to bodyshop standards
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For lighter scuffs, you can rub it with a piece of stiff carpet.
Prepsol or similar may slightly dissolve/soften it and help you move it around.
To be honest, based on that photo I would sand it back and paint it.
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The way that trade undertakes this repair is: Prepare damaged area, degrease & lightly key - repair area by applying a high quality flexible filler - sanding back to the correct profile when dry - apply a textured bumper spray (available in aerosol from all good automotive refinishing factors or you can find it online) - blend the texture with existing bumper texture - lightly sand back when dry if required to achieve the correct texture and then paint with a matt black / matt colour to match existing - done this way you will achieve a high quality repair to bodyshop standards Agree with the above, I work for a Renault dealership and we have a professional smart repair guy who does our textured bumpers - if done properly you'd hardly notice it'd been repaired. Two bits of advice from personal experience - Firstly, don't use normal body filler, it's not as flexible as plastic so it'll eventually crack and start to lift away from the bumper, use the proper plastic resin - its runny and has to be built up in layers for deeper repairs, but it'll bond fully to the plastic and will be a much longer lasting repair. and secondly, don't buy the textured bumper aerosol paint from Halfords, I made that mistake once on a wing mirror cover and it left it with the texture of 80 grit sandpaper - the proper stuff will have a much finer texture.
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VIP
South East
Posts: 8,293
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Heat gun and one of those green washing up scouring pads or a scotch brite pad. Apply heat to the affected area to soften the plastic and dab the pad onto the area. Keep redoing this until it levels and textures the area. Would you sand it first ? No, use heat and press down with the scotch pad to re-level the area. |
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The way that trade undertakes this repair is: Prepare damaged area, degrease & lightly key - repair area by applying a high quality flexible filler - sanding back to the correct profile when dry - apply a textured bumper spray (available in aerosol from all good automotive refinishing factors or you can find it online) - blend the texture with existing bumper texture - lightly sand back when dry if required to achieve the correct texture and then paint with a matt black / matt colour to match existing - done this way you will achieve a high quality repair to bodyshop standards I ran my own and worked for smart repair company's for about 8yrs and this is pretty much bang on . I would guess looking at the photo ,that most of the scuff on the lower part would come out by sanding with 180 grit then 400 grit on a DA. any smaller nicks and scratches that are left can be filled with super glue (the one with a spray activator is best),then flatted back. finish by scotchbriting the area to remove any fluffiness on the plastic and clean with panelwipe. the aerosol texture can be manipulated by carefully heating the can ,colder for larger grain, hotter for a finer grain. very lightly sand the texture when dry with 400grit to remove and blend the coarseness. apply the top coat in light coats and blend out the colour . job done.... |
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66 Beetle
63 thunderbird
97 mx5
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www.brownbrothers.com/products/texture-coating-0My last place used this stuff for textured bumper repairs. Use it to replicate the grain of the component then paint to colour. A brief rundown for repairing damaged bumpers: Clean the area to be repaired. Heat with the hot air gun, making sure to heat the areas around the dent. you will notice with most bumpers that the plastic goes slightly shiny when it gets to the right temperature for reshaping. Using a combination of hammers and dollies, massage the dents out the bumper. When the bumper is the right shape, leave to cool. Sand the repair area with 180 grit to remove heavy scratches or slight high/low spots then progress to 240, 320 and 500 for finishing. From here you can prime and paint or apply texture coating as above. It's worth mentioning that most European stuff should have the plastic type stamped into it somewhere on the inside of the part. You will see something like PP EPDM T20 which means the bumper is made of a polypropylene and ethylene propylene diene monomer mix with a 20% talc content for bulking out the raw materials at production. Less talc means a more malleable plastic making them quite forgiving during repairs. If I could post pictures with my cackberry, I would. Have fun with your repairs! And remember, if it goes pear-shaped, you can remove all the texture and just matt black it and still get similar results 
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