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Bumper smoothing


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Ok, need some advice here boys and girls....

Im going to smooth the bumpers on the golf ready for spraying (my thinking being, 1. i can learn to do it , 2. get more satisfaction in doing it myself, and 3. save myself some cash in the process) The cars off the road for winter anyway so i can take as long as it takes to do it right. Once its prepped it'll be taken to a body shop for spraying and for them just to check over the work... :-)

Im going to take out the swage lines from the bumper (leaving the front indicators in) but i cant work out how to smooth it out:-

At each corner of the bumpers the swage line top and bottom seems to jut out at different lengths. Do you smooth straight over it, or do you start further down and gradually build up, or do you sand down the top of the bumper so the top and bottom are the same?

The theres the ends of each bumper- did you build this up gradually with filler, or sand some of the plastic off of the top of the bumper to match the 2 levels, before filling a little bit?

What did you do to fill the swage line? Id like to be able to plastic weld a thin strip of plastic in but dont have a plastic welder so may have to just use a coarse filler to fill in the majority of the swage line and then a fine layer on top to finish before sanding down.....

Any help and advice much appreciated......

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Warren you need to speak to Kev who done mine he's never attempted anything like this before and he's done a pukka job on my VR6 ;)

He's off on hols to Thailand the next two weeks but pop down an ask him in a week or 2 time. + I'll be needing a hand to put me vr back together ;)

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i just dropped off my front bumper for smoothin and paintin today, am gettin exactly the same done as your intendin warren. the friend thats doin it says to come up next week and see it before paintin so i`ll get some pics up and ask how he did it!! i`m not the greatest at bodywork and he owes me a favour and its his job otherwise i`d be takling it myself!!

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Its all in the preperation see lads... Ive got all winter to get it looking right.... ready for the pros to spray it as i dont have the facility to make it look proper ie oven, compressor gravity gun etc etc....

Only thin is deciding how to do the corners- and using the right material to fill the swage line - ideally plastic weld, if not fibre glass then filler to smooth off.... Once ive done it once then ill be happy to do it again- its the only way ill be able to afford to get the amount of work i want sorted! Especially among other things ;-)

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I used Isopon P40 glass fibre filler is to fill the swage line, then 3 layers of fine, flexible filler (I used Isopon bumper fill) over the top, sanding down with 320 grit between each layer.

I left the priming, prepping & painting to a bodyshop.

I've yet to see the end result, but if it looks anything like Pete's bumper above, I'll be well happy.

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