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First fiberglass expirience- help needed

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Old 06-17-2009, 06:01 PM
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Originally Posted by jalat

use nothing more than 0.75 ounce chop mat. dont use that you get at CT or HD that is woven together and looks like carbon fiber weave.
.... I've always used the woven mat. Molds to any shape instantly and hold plenty of resin.... I've never gone wrong using it. I find it to be way less of a headache and plenty strong.
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Old 06-17-2009, 06:13 PM
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The weave is easy to use and less messy, but I can get chop mat in bulk for cheep, so I get that.
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Old 06-17-2009, 06:54 PM
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Originally Posted by N130Gv2
.... I've always used the woven mat. Molds to any shape instantly and hold plenty of resin.... I've never gone wrong using it. I find it to be way less of a headache and plenty strong.
it was my own opinion...

i found it very hard to layer it. i find chop mat to be the easiest and most effective mat. your have the ability to control where you put it just by tearing it to shape and its alot more 'resin friendly' as you dont use as much resin to have the mat soak thru
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Old 06-18-2009, 10:47 AM
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ok... so i will get fleece, polyester resin...

and as for mat I want it to be easy to mold, I have few interior details I want to mold too so that will be very nice if it will shape nicely, Im going to go to Composites Canada tomorrow morning to get resin and the matt so I will ask them as well, they quoted me for $130 for 5gal of resin, now that's way cheaper then napa lol, but is it a good price? Thank you all for help.... It looks like its going to be a fun weekend lol
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Old 06-18-2009, 11:03 AM
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$130 for 5 gallons is reasonable. just get the medium thickness mat they have. I always cut it all up into 3x6" strips lets you just about shape it over any contour.
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Old 06-18-2009, 11:26 AM
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OK awesome, I keep reading that I should use filler- bondo, but all the tutorials don't really show the step with that being applied anywhere... I have some kind of body filler that's reinforced with fiberglass, so that should work... but do I apply it as a top layer so it will be easier to smooth it out? or how that works?...
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Old 06-18-2009, 11:48 AM
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Originally Posted by LaZyLuke
Im going to go to Composites Canada tomorrow morning to get resin and the matt so I will ask them as well, they quoted me for $130 for 5gal of resin, now that's way cheaper then napa lol, but is it a good price?
Is that for waxed or un-waxed? The waxed is about $50 less than the un-waxed per 20L where I get my supplies.

My understanding is that you get better adhesion between layers with the un-waxed.
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Old 06-18-2009, 11:56 AM
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Originally Posted by LaZyLuke
I have some kind of body filler that's reinforced with fiberglass, so that should work... but do I apply it as a top layer so it will be easier to smooth it out? or how that works?...
Fibre re-inforced body filler is only necessary for structural panels, panels that flex or if you have really thick layers. The fibres keep it from cracking.

Plain old body filler (without fibres) is a lot easier to sand.

I just use a small plastic er to apply body filler. It is just like mudding when doing drywall. The more care you take when putting it on, the less sanding you have to do to get the finish you are looking for.
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Old 06-22-2009, 11:49 AM
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I got everything the other day in Mississauga, I got the un-waxed one as there was no difference between the price, also got sanding putty so sanding will be easy now, everything is prepared to lay fiberglass now so I will probably start doing it today after work ;]
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