Is there are professional body workers?

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This topic contains 10 replies, has 4 voices, and was last updated by Profile photo of Alexander Alexander 1 year, 7 months ago.

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  • #49010
    Profile photo of Alexander
    Alexander
    Participant

    Hi Everybody! I would like to start here a new discussion about bumpers repair. I work with professional body repair and looking for colleagues, who want to share experience in bumpers repair. First question: how do you repair a bumper cracks? what materials and technology do you use for?
    Second: i’ve got a lot of problems with repair with metal grid, all kind of grids. I will post some pictures how bumpers looking after such repairs. Who had similar problems? and what did you do with that?

    #49011
    Profile photo of Sam Latimer
    Sam Latimer
    Participant

    from looking at your pictures , if it was a insurance job the cover should be replaced . but being a rebuilder I have been faced to do a repair like yours. I got away from using a metal grid (mesh) and went to Fusor 700 reinforcing mesh. it’s a fiber mesh. I found the best way that works for me is using a backer plate . I save some scrap covers for that use . I cut a piece off wider than the crack , and drill 1/8 in holes ( a few ) on each side of the crack through the cover and backer piece I cut from a old cover. I found it gave the most strength to the repair area . I also coated the backer plate with filler as to glue it to the cover.forced the filler material through the holes I drilled so that it came out of the backer plate. It looks like you sem’s ? I found sem products worked Ok and didn’t need a adhesion modifier like fuser does . either way follow the correct prep procedures for any product you use. Hope this helps you ! with all the aftermarket bumper replacements , it’s some time cheaper to replace the cover.

    #49012
    Profile photo of Alexander
    Alexander
    Participant

    I know Fusor. But what i dont like there, is that i have from a crack to make a whole.. Bumper is bekam a more damaged as before. Did you work with welding? Me personaly like this way of repair. Also I work with planar connectors, I can share a link with technology, hope that moderator wouldn’t mind:
    http://bamperus.com/video/71-repair-of-bumper-vaz-2113-with-planar-connectors-bamperus-english-part-1.html
    http://bamperus.com/video/70-repair-of-bumper-vaz-2113-with-planar-connectors-bamperus-english-part-2.html
    Another point is price 🙂 You sad, that is some time cheaper to replace the cover, partly you are right, but all depend from costs for materials that you work with. Costs for materials for repair in this 2 videos was about 8-9$.

    waiting for your comments!

    #49013
    Profile photo of Sam Latimer
    Sam Latimer
    Participant

    the wire mesh you shown in your pictures is sold by Ureathane supply company here . in the USA. it’s used to be melted into the plastic with their heated iron (plastic welder) . I myself found using a backer plate behind the crack glued and then a series of holes drilled and fuser or sem squeezed through it . made a stronger bond. I have used other methods with my plastic welder adding hot rods in the crack . sometimes it works. I see now there staples that could be melted in the plastic . but never tried them. I can’t imagine you repairing the cover you posted in the picture for $8 – $9 usa dollars . and you’re not including your time . if there’s no aftermarket cover available then any attempt worth a try. like I said a insurance repair would of figured a new cover to repair what you shown in the picture.

    #49014
    Profile photo of Sam Latimer
    Sam Latimer
    Participant

    I did like watching you link you posted . the cover repaired in the link was a stiffer cover not a softer flexible one . the picture you posted showed a chunk missing . either way let me know how your repair worked out ! and how much time you spent to get it where it was ready for paint. and if you were happy with your repair .

    #49015
    Profile photo of Alexander
    Alexander
    Participant

    I meant that costs for materials for repair in videos was about 8-9$, and it is really so. For work from any pictures i need approx. 20-30min, costs (picture grid1.jpg) is about 10-12$. You can see more pictures about this repair here (repair with chunk missing): http://bamperus.com/photo/84-repeated-work-using-planar-connectors-in-low-quality-repair-by-net-of-bumper-toyota-rr.html
    It is really easy, cheap and very long term repair. My collegues made few crush tests for bumpers repaired with this technology (with planar connectors Bamperus), and we were positive surprised! It is impossible to break bumper again at the same place. I mean after repair with connectors. We have often seen instances of plastics cracking near the weld along the clean non fault surface, when the repaired bumper (welded together using the Bamperus connector) was hit in the same spot repeatedly. Since i work with connectors there have been no complaints from clients.

    #49016
    Profile photo of Alexander
    Alexander
    Participant

    another example. Today i’d repaired a bumper from Lada Priora, here is link for pictures: https://yadi.sk/d/V2tq9cwXjLfHN
    Description: Bumper Lada Priora. Material PP + EPDM. Previous masters were fused grid. Connection collapsed. I’d cleaned out the old grid and burning plastic. Put outside planar connector bamperus group A (10 cm), inside i’d also cleaned out and put the connector Bamperus (12cm). At the same time increased bumpers burned wall. Treated. Time for all work is about 30 minutes, stirred up the rear 10cm crack at the bottom. Costs for materials 5Euro or approx. 7$.

    #49023
    Profile photo of Chris
    Chris
    Participant

    I do lots of bar repairs. Virtually every day.

    Mostly I use Terokal 9225 (fast or slow depending on the weather). Used with their cleaner and primer and either metal strip reinforcements or fibreglass flyscreen mesh. Done properly it’s better than welding. Expensive though since a tube is around $25 and that will do 4 bars at best. It’s supposed to be paint friendly but I’ve found it’s best to lightly skim over the face with filler. No problems with primer adhesion then.

    On a few occasions I’ve run out of the Terokal and used fibre reinforced filler on the back. sanded really good for adhesion and cleaned well before use it works nearly as well, but won’t stand up to another impact.

    #49025
    Profile photo of Carl
    Carl
    Participant

    I use a plastic welder / hot knife and sink the mesh in then use the plastic sticks to fill in crack but have seen it scar once or twice when polishing ! It kind of sinks and shows the plastic repair ? Id rather replace them but some customers dont want that expense

    #49026
    Profile photo of Alexander
    Alexander
    Participant

    [quote=”NFT5″ post=37433]I do lots of bar repairs. Virtually every day.

    Mostly I use Terokal 9225 (fast or slow depending on the weather). Used with their cleaner and primer and either metal strip reinforcements or fibreglass flyscreen mesh. Done properly it’s better than welding. Expensive though since a tube is around $25 and that will do 4 bars at best. It’s supposed to be paint friendly but I’ve found it’s best to lightly skim over the face with filler. No problems with primer adhesion then.

    On a few occasions I’ve run out of the Terokal and used fibre reinforced filler on the back. sanded really good for adhesion and cleaned well before use it works nearly as well, but won’t stand up to another impact.[/quote]

    I do also repairs every day and also virtually 🙂 but my specialisation are bumpers, I even dont paint it, I do only repair. Painting make an another body man.
    I would start about adhesion: it is very important point! For example if you repair a bumper with plastic sticks then adhesion would be your first problem. Because plastic is “oily”. Paint does not stick. That is why paint coming off pretty quickly. I’ve solved this problem, if you interested, i can explain how.
    As for me, different glue and staple is an easy and cheap way for masters, but it is hold not a long time. Because all the glue do not like moisture and solar ultraviolet radiation and especially frost. At first, iron (wire, staples, wire mesh) could decay, but also it have a difference in thermal expansion with a plastic – therefore alloying iron with time breaks crack again. That is why we have what we have (pictures above). In general, plastic repair with iron is the lowest quality. Qualitative, really long term repair should be made with a plastic welding, but not all kind of plastics strips are same good. I would like to pay attention on this point, that I write about lifetime repair. Not just for couple of years, or even months.

    #49031
    Profile photo of Alexander
    Alexander
    Participant

    [quote=”Scoobycarl” post=37435]I use a plastic welder / hot knife and sink the mesh in then use the plastic sticks to fill in crack but have seen it scar once or twice when polishing ! It kind of sinks and shows the plastic repair ? Id rather replace them but some customers dont want that expense[/quote]

    To be true, nobody like an extra expense. Even me. I do all to give and get best quality for good price. I prefer to do my work well, then trere are no complains from clients.
    I use for work welder, electric dryer with adjustment ability, sharp-ground knife, abrasive tool and planar connectors bamperus.
    Planar connectors are not just a plastic sticks, it is modified plastic. It has a special structure, whereby it have also good adhesion with paint without special treatment. Because surface after repair is not “oily”. Links with instruction i’ve posted above. This technology is good way to save money of your clients (for example my clients are very thankfull to me for that) and good way to earn money for body workers, because connectors bamperus are cheap.
    I’ve repaired already thousands bumpers and half of them could be just replaced with a new one. But I helped to my clients to save hundreds dollars/euro. 8 years ago i made a bumper for Audi from 2 old ones, and it holds till now! I’ll attache pictures of this repair.
    Am I answered your question? :cheer: I can speak a long time about bumpers repair. Just ask me if you have more questions.

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