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carboncactus
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Group: Forum Members
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I always use flash tape to repair moulds. Just put a blob of gelcoat, smooth it and lay a piece of flash tape on top, sealing the repair. It cures quicker, and the wax doesn't clog the sandpaper when you rub the repair down.
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Joe
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Group: Forum Members
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Thx Wozza, I did not pay attention that wax additive was available from EC. That solves my "problem". I thought it could be done with "demolding wax" added to the gelcoat. FLD, I do not want any kind of film for the repair, and neither do I want another product than Unimold product on my mold. Do I lose time exploring different things? Yes. Is exploring fun to me? Yes.
 A $1000 electronic device will always protect a 10 cents fuse
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FLD
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Group: Forum Members
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Why not just buy flowcoat? Use this to repair the mould with clingfilm/bag film/tape over the top then just flat and polish. Its already made so why fanny about trying to make your own when someone has already done it?
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wozza
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Wax additive, added at 2%, works a treat and cheap as chips. Available from EC or you could probably make your own.
I know you said you wanted a chemical solution but bagging film also works in place of cling film.
Carbon Copies Ltd
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Joe
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Group: Forum Members
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Hi, After 48 hours, my little receipe is not set. As a reminder, I used 100 grs Unimold gelcoat + 2% catalyst + 2% easy lease, all mixed together. I applied that to a PP sheet so I can fail without touching the actual mold. Room temp is 19°C. I demolded the gelcoat today and it's set on the mold surface, but not quite yet on the outside. Texture is quite firm but I know it wont polish well. So, if someone has a receipe that works with wax additive, please let me know. I know I could use cling film, but I find a "chemical" way being more convenient, once the receipe is known.
A $1000 electronic device will always protect a 10 cents fuse
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Joe
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Group: Forum Members
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Hey hey, Thx guys for your input. Actually I was searching for a receipe I could use, I did not explain me well. I had a try today. I used 100grs unimold gelcoat, 2% (2grs) catalyst and 2% (2grs) easy lease agent. I'll post results when it's supposed to be set. Please let me know if I do something wrong, more input welcome. Cheers from Belgium.
A $1000 electronic device will always protect a 10 cents fuse
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Warren (Staff)
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What happens is the wax in the additive comes to the surface of the gelcoat forming an airtight barrier thus the gelcoat can fully cure hard.
Warren Penalver
Easy Composites / Carbon Mods - Technical Support Assistant
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wojtepanik
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Joe (20/10/2013)
Hi, I heared about repairing gelcoat (unimold, at least) with "wax additive", as opposed to cling film. We can see that in one of the bonnet video the EC staff made. Anyone could explain that? Thx. When gelcoat cures on the air some chemical reaction makes gelcoat tacky even chen fully cured and was additive makes gelcoat not tacky even if cured on air. Wojtek from Poland
~~~Everytime I hear sound of demoulding part I have eargasm~~~
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Joe
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Group: Forum Members
Posts: 310,
Visits: 1.5K
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Hi, I heared about repairing gelcoat (unimold, at least) with "wax additive", as opposed to cling film. We can see that in one of the bonnet video the EC staff made. Anyone could explain that? Thx.
A $1000 electronic device will always protect a 10 cents fuse
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LaxFriedrichs
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Thanks Carbon  I should have enough room - hopefully...
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