Unimould mould repair


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Joe
Joe
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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. 

 



 


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Joe
Joe
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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. 

 



 


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wozza
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
FLD
FLD
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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?
Joe
Joe
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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. 

 



 


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Edited 12 Years Ago by Joe
carboncactus
carboncactus
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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.

http://www.talkcomposites.com/Uploads/Images/db628ad5-e0e7-47b9-873a-3d84.png
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