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Author: Subject: Instant fibre glass method
clairetoo

posted on 3/9/09 at 07:03 PM Reply With Quote
Instant fibre glass method

As the Fury I am currently V6'ing now needs a new battery tray in order to get on with the wiring , I thought I would share my method of one-off molding , without the time consuming plug/mold/molding process .
I first cut and fold the shape in 1mm ally sheet , and simply duct tape it together .

folded ally
folded ally


This is then covered in gel coat - no need to wax/polish as the ally will easily pull away from naked ally .

Gelcoat on
Gelcoat on


More to follow as soon as this sets





Its cuz I is blond , innit

Claire xx

Will weld for food......

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tomgregory2000

posted on 3/9/09 at 07:20 PM Reply With Quote
looking good. i like your build guides

Couple of questions,
How much % of pigment do you use?
Where do you get the pigment from as i need some more black?

Tommy

[Edited on 3/9/09 by tomgregory2000]

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blakep82

posted on 3/9/09 at 07:38 PM Reply With Quote
isn't it just the same but using ali as the mold?





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clairetoo

posted on 3/9/09 at 07:41 PM Reply With Quote
Pigment wise I just scoop some on a kitchen knife (my favorite mixing tool) , mix it in - and if it isnt dark enough add a little more
This is the last of my black pigment , so I now need some more - I usually scroung it from my local (ish) canoe manufacture - or `borrow` a little from work





Its cuz I is blond , innit

Claire xx

Will weld for food......

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clairetoo

posted on 3/9/09 at 07:43 PM Reply With Quote
quote:
Originally posted by blakep82
isn't it just the same but using ali as the mold?

In a way - yes - but this way I can make my mold in ten minutes





Its cuz I is blond , innit

Claire xx

Will weld for food......

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clairetoo

posted on 3/9/09 at 09:22 PM Reply With Quote
And here it is a couple of hours later with the CSM on , and a bit of coremat on the bottom (to help keep the heat out , there will be an exhaust running under it)

Mat added.....
Mat added.....

As soon as it is set the ally can be peeled out - sadly that will have to wait till tomorrow night , but could be done in a couple of hours .





Its cuz I is blond , innit

Claire xx

Will weld for food......

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clairetoo

posted on 3/9/09 at 10:12 PM Reply With Quote
Well..........I just checked , and it's set already , so a quick trim round the edge and here it is - ready to fit in the car (after a bit more of a trim...) in three hours

Finished !
Finished !


Thats why I call it instant fibre glass !





Its cuz I is blond , innit

Claire xx

Will weld for food......

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MikeR

posted on 3/9/09 at 10:42 PM Reply With Quote
Ooooh, you could be just the person i need to talk to Clare.

Bought one of those 40 quid aero screens of the bay of tat. Sent the first back as there where two small cracks in the gel coat. Got the replacement and there are no cracks but a 2mm by 10mm void under the black gel coat on the top edge. Really can't be bothered sending this one back as its costing me each time.

What should i fill the void with? will normal super glue to ok? Should I use something special?

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blakep82

posted on 3/9/09 at 11:55 PM Reply With Quote
good work

never knew it wouldn't stick to ali. good to remember first for when i don't want it to, and also for when i do want it to but i don't know why it won't

[Edited on 3/9/09 by blakep82]





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don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!

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RK

posted on 4/9/09 at 01:10 AM Reply With Quote
I think it will stick to ally, if the ally has been thoroughly cleaned, degreased and sanded with 250 grit sandpaper. Otherwise, it won't. This has been my experience.

Nice job there Clare! I am in awe of these successful fibreglassers.

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clairetoo

posted on 4/9/09 at 05:33 AM Reply With Quote
quote:
Originally posted by MikeR
Ooooh, you could be just the person i need to talk to Clare.

Bought one of those 40 quid aero screens of the bay of tat. Sent the first back as there where two small cracks in the gel coat. Got the replacement and there are no cracks but a 2mm by 10mm void under the black gel coat on the top edge. Really can't be bothered sending this one back as its costing me each time.

What should i fill the void with? will normal super glue to ok? Should I use something special?

That would be dead easy to fill with a splash of black gel coat - once sanded and polished it wouldnt show at all .





Its cuz I is blond , innit

Claire xx

Will weld for food......

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ceebmoj

posted on 4/9/09 at 07:43 AM Reply With Quote
hi,

ok so the guy is building an RC plain but I have found these video have shown me allot about fiberglass

a question I have is does peal ply the guy use come off after you have finished?






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Alfa145

posted on 4/9/09 at 10:38 AM Reply With Quote
Looking good Claire, I'm after trying a bit of fibreglassing myself. Where do you get the bits from? Anyone online? What type of matting, etc?
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omega0684

posted on 4/9/09 at 10:48 AM Reply With Quote
ive seen claire's magical hands in action and i have to say that she is very gifted when given a pot of gel coat and a role of fibreglass or Carbon Fibre!


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MikeR

posted on 4/9/09 at 11:02 AM Reply With Quote
but where do i get a dab of the stuff?

Need 5 or 10ml for the aero screen and probably 100ml for touching up the GRP wings I've got.

the 5ml in black and the rest in British racing green?

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MikeRJ

posted on 4/9/09 at 02:30 PM Reply With Quote
quote:
Originally posted by clairetoo
That would be dead easy to fill with a splash of black gel coat - once sanded and polished it wouldnt show at all .


What's the deal with gel coat not fully setting if exposed to air? I've read about it staying 'sticky' for ages.

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clairetoo

posted on 4/9/09 at 03:55 PM Reply With Quote
quote:
Originally posted by MikeRJ
quote:
Originally posted by clairetoo
That would be dead easy to fill with a splash of black gel coat - once sanded and polished it wouldnt show at all .


What's the deal with gel coat not fully setting if exposed to air? I've read about it staying 'sticky' for ages.

Gel coat only sets completely when not exposed to air - the side against the mold will fully harden , but the exposed side stays tacky so that the mat will stick better (as I understand it)
If you are doing a small gel coat repair , simply cover it with a piece of cellophane (the sort found in packaging) , and once set it will not only be hard but shiny as well





Its cuz I is blond , innit

Claire xx

Will weld for food......

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RK

posted on 4/9/09 at 10:04 PM Reply With Quote
I've just sent away for the John Dickens book in Complete Kit Car (and paid a fortune too). Might be worth a read for those of us who struggle with this sort of thing.
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