Daston Posted July 31, 2007 Share Posted July 31, 2007 Anyone good at fibre glassing? I have a crack on my topsecret front splitter and the under tray has come away on one side. How hard would this be to fix as a DIY job? However I have no idea about fibre glassing and have never tried it so some pointers would be most helpful. Quote Link to comment Share on other sites More sharing options...
M4RK RZ Posted July 31, 2007 Share Posted July 31, 2007 I have done a little but im no professional If its a split/crack then thats loads easier to do If its somewhere that carries a little weight then just make sure that you key in very well to the original material (rub down and get it as rough as possible - there may be some sort of thing that you can buy to assist the keyin in? (chemical wise) if you can not see the area I would fibre glass some small support brackets in - maybe pop rivet into place and then glass over Dirt and dust free etc.. basic stuff but its a start :o) Quote Link to comment Share on other sites More sharing options...
Guest CoolsBlue Posted July 31, 2007 Share Posted July 31, 2007 i wouldnt just fibreglass over a crack, what i do is, grind down the crack so the area around is really thin and the crack is just a gap in the middle from gridning, then fibreglass from the back and front, grind down the front to get a decent shape then fill the front and smooth, id remove the bumper to do it if i was you Quote Link to comment Share on other sites More sharing options...
hoff Posted July 31, 2007 Share Posted July 31, 2007 My mates basically rebuilt by Bomex with fibre glass and filler. Its definately something you can do yourself. Though I cant say what the procedure was but it was quite simple. Edit:What suprasrcool said. Quote Link to comment Share on other sites More sharing options...
Guest CoolsBlue Posted July 31, 2007 Share Posted July 31, 2007 also, wear protective gear, goggles, and cover up most of your skin, as sanding fibreglass itches for ages Quote Link to comment Share on other sites More sharing options...
Daston Posted July 31, 2007 Author Share Posted July 31, 2007 Cool cheers for the advice! Dosnt sound too bad the bumper will be removed as I plan to fit my wings around the same time. Any idea where I can get a fiber glasing kit? The worse part is the where the under tray has come off of the side as this has made the bumper flex out would it be ok to bond it back in and use G-clamps to hold it together until it sets? Quote Link to comment Share on other sites More sharing options...
grahamc Posted July 31, 2007 Share Posted July 31, 2007 I am going to give this a go, with my current bomex, since I damaged that... one I have my new kit. Quote Link to comment Share on other sites More sharing options...
Guest CoolsBlue Posted July 31, 2007 Share Posted July 31, 2007 from a local hardware shop, fibreglass resin, hardner, brushes and matting and a cup to mix it in, once you clamp the parts together thats ok, when the resin has dried and you remove the clamps, the joints will be stuck back, but what you should do is make sure theres alot to make it strong at the back, cuz if you only put a thin layer on, and fix it up, hit anoter bump, the crack will come back you can tell as its folded out, that means there some tension there so make sure its strong, know what i mean? Quote Link to comment Share on other sites More sharing options...
grahamc Posted July 31, 2007 Share Posted July 31, 2007 as a matter of interest, is there some sort of hardening foam that you can put inside the bumper to give it a little added strength? Quote Link to comment Share on other sites More sharing options...
Daston Posted July 31, 2007 Author Share Posted July 31, 2007 sweet thanks guys! Should get it sorted in a few weeks so I can put the car up for sale. Quote Link to comment Share on other sites More sharing options...
Guest CoolsBlue Posted July 31, 2007 Share Posted July 31, 2007 ive seen some on this black top secret bumper for sale, but really if the bumper was to hit a bump hard at the bottom it will still crack, all thats doing is stopping the bumper from flexing up and down a little Quote Link to comment Share on other sites More sharing options...
VELOCITY Posted July 31, 2007 Share Posted July 31, 2007 I've heard if it is cracked before you fibre glass over it, you need to drill a hole at the end of the crack to stop it getting any bigger Quote Link to comment Share on other sites More sharing options...
Guest CoolsBlue Posted July 31, 2007 Share Posted July 31, 2007 really duno but you shouldnt glass right over a crack anyway, just grind away the crack Quote Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted July 31, 2007 Share Posted July 31, 2007 The only way to prevent the crack showing through after a few weeks is to first prep the back, grind a thin layer off, then apply two to four layers of glass mat to the back, let it harden, then carefully grind about 1/2 to 1 inch either side of the crack, being carefully not to go through anywhere, cut strips of mat/cloth to fit, and build it up to the original level, let dry and flat it all out until your happy, i have never had a crack reappeare using this method;) Quote Link to comment Share on other sites More sharing options...
edge Posted July 31, 2007 Share Posted July 31, 2007 When i took my front lip off it came off in two pieces where it had been caught a few times. I got a glass kit from halfords and stuck it back together all ok apart from the huge mess it made all over the kitchen, reminded me of being at school again. Was great fun but i wouldnt do it again. Then i gave the lip to the pros to be finished and sprayed. Quote Link to comment Share on other sites More sharing options...
Daston Posted August 1, 2007 Author Share Posted August 1, 2007 OK popped into halfords last night and got a kit for £11 bargain! Looking at the instuctions it shows how to put the material down. How do you make it nice and smooth afterwards? Is it just a case of sanding it down and then the paint gives it that smooth finish (same when you rough up plastic to spray) Quote Link to comment Share on other sites More sharing options...
Daston Posted August 1, 2007 Author Share Posted August 1, 2007 for you guys who want to give it a go this guy has a good how to guide (he also has a supra so you can trust him lol) http://www.explorerforum.com/fiberglass/fiberglassing.htm Quote Link to comment Share on other sites More sharing options...
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