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   Author  Topic: fiberglass hood repair cracks  (Read 485 times)
sledchuck
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fiberglass hood repair cracks
« on: January 13, 2013, 04:57:23 PM »
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I have v d out spider cracks in hood what do i fill areas with?i have heard of something called kitty hair!has anybody have sugg
thxs sledchuck
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1970TNT
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Re:fiberglass hood repair cracks
« Reply #1 on: January 13, 2013, 07:43:38 PM »
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I HAVE JUST USED AN EXPOXY GLUE/FILLER ON A 72 FIBERGLASS HOOD. GOT THE STUFF AT LOWES. IT IS FOR FIBERGLASS JETSKI'S AND CAN BE APPLIED UNDER WATER. I DON'T KNOW HOW IT WILL HOLD UP BUT IT IS A BEAR TO SAND OUT. TIME WILL TELL. PLUS IT COMES IN A SMALL DUEL TUBE MIX SO YA DON'T WASTE ALOT
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Joe Olympique
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Re:fiberglass hood repair cracks
« Reply #2 on: January 14, 2013, 08:20:25 AM »
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I've had good luck with regular Bondo (red can). It sands out well. Mix up small amounts as it sets up quickly on your pallet. Plastic or paper plates make good mixing pallets, popsicle sticks or tongue depressors make good mixing sticks, applies with plastic spreaders (usually sold right next to the filler) cleans up easily with acetone.
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64: Alpine. 66 Olympique. 67 Alpine. 70: 12/3, 335. 71: 292, 775, No-dick 399, Valmont, Auto-ski Torrino 440.  72: 340, 440, 775, No-dick 440. 73: elan 250T.  75 Racoon Elan. 78 Olympique 340. 83 Yamaha Bravo
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Re:fiberglass hood repair cracks
« Reply #3 on: January 14, 2013, 05:56:14 PM »
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x2 on the bondo, done a few hoods that way and they're still holding up fine.
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Re:fiberglass hood repair cracks
« Reply #4 on: January 14, 2013, 06:18:22 PM »
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Personaly ... I would fill the crack with fiberglass resin ... then apply a skim coat of Bondo (or whatever your favorite  brand of filler is) ... sand ... prime ... paint ... buff ... polish ...
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Re:fiberglass hood repair cracks
« Reply #5 on: January 14, 2013, 06:34:18 PM »
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I would do the same as GaWajn except I would use epoxy resin it is stronger waterproof and less toxic.  I also have a bunch of it in my shop from building strip canoes.  I mix  micro balloons with the epoxy and make a light filler like Bondo.  But bondo works just a well. 
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Joe Olympique
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Re:fiberglass hood repair cracks
« Reply #6 on: January 14, 2013, 07:28:24 PM »
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These are all good approaches. I like the idea of resin first, especially for the deeper or wider cracks. I've also used the epoxy resin with micro ballons, it's beautiful. You can mix it up thick as cake frosting if you want to and it will hold its shape in verticle areas as it dries. It's extremely hard when dried so hand sanding is a chore. To minimize sanding I lay a piece of wax paper on the fresh repair and give it a pass with the plastic spreader. It smooths it out nicely. Leave the wax paper in place over night, it will lift right off when everything is dry.
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64: Alpine. 66 Olympique. 67 Alpine. 70: 12/3, 335. 71: 292, 775, No-dick 399, Valmont, Auto-ski Torrino 440.  72: 340, 440, 775, No-dick 440. 73: elan 250T.  75 Racoon Elan. 78 Olympique 340. 83 Yamaha Bravo
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Re:fiberglass hood repair cracks
« Reply #7 on: January 14, 2013, 09:31:12 PM »
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Quote from: Joe Olympique on January 14, 2013, 07:28:24 PM   

These are all good approaches. I like the idea of resin first, especially for the deeper or wider cracks. I've also used the epoxy resin with micro ballons, it's beautiful. You can mix it up thick as cake frosting if you want to and it will hold its shape in verticle areas as it dries. It's extremely hard when dried so hand sanding is a chore. To minimize sanding I lay a piece of wax paper on the fresh repair and give it a pass with the plastic spreader. It smooths it out nicely. Leave the wax paper in place over night, it will lift right off when everything is dry.


Good tip!
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Re:fiberglass hood repair cracks
« Reply #8 on: January 15, 2013, 12:44:05 PM »
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I really like the wax paper tip 
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Re:fiberglass hood repair cracks
« Reply #9 on: January 15, 2013, 03:30:14 PM »
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Quote from: GaWajn on January 15, 2013, 12:44:05 PM   

I really like the wax paper tip 


The wax paper is the bomb !  The first time you use it you'll feel like you won the lottery.  One good firm pass with the spreader will move the edges out and make them pretty flush, the whole repair area will be very smooth. Don't be temped to lift the paper until it's dried otherwise you'll pull the filler with it
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64: Alpine. 66 Olympique. 67 Alpine. 70: 12/3, 335. 71: 292, 775, No-dick 399, Valmont, Auto-ski Torrino 440.  72: 340, 440, 775, No-dick 440. 73: elan 250T.  75 Racoon Elan. 78 Olympique 340. 83 Yamaha Bravo
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Re:fiberglass hood repair cracks
« Reply #10 on: January 16, 2013, 09:40:20 AM »
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Thank Joe for the tip. Quick question, you never had any problem with the wax affecting the primer and paint?
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Re:fiberglass hood repair cracks
« Reply #11 on: January 16, 2013, 05:45:06 PM »
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Nope, none
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64: Alpine. 66 Olympique. 67 Alpine. 70: 12/3, 335. 71: 292, 775, No-dick 399, Valmont, Auto-ski Torrino 440.  72: 340, 440, 775, No-dick 440. 73: elan 250T.  75 Racoon Elan. 78 Olympique 340. 83 Yamaha Bravo
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