Andy GSi
Member
Registered: 24th Mar 02
Location: Shropshire, Drives 2.0l 16v Corsa
User status: Offline
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i have left it to set over night and its still tacky.....is it because i have not added enough hardener, or does it need to be warm conditions to set??
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RichR
Premium Member
Registered: 17th Oct 01
Location: Waterhouses, Staffordshire
User status: Offline
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hardener - what fibreglass have u used - because varying types and varying resin systems take varying lenghts of time to cure - however over night seems excessive - especially as ur unlikely to be uing marine grade resin which pretty much takes the longest at 3-4 hours
its the styrene content of the resin which stops it going off - once this styrene is evaporated out the resin hardens hence the need for a hardener - u need to just leave it until its set tho mate
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Adam-D
Member
Registered: 11th May 02
Location: Cheshire
User status: Offline
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warm condition's m8
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RichR
Premium Member
Registered: 17th Oct 01
Location: Waterhouses, Staffordshire
User status: Offline
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although warmth plays a small role in the setting process - u need to get the styrene out of the resin for it to set - this can happen at nethin above -6 c so its unlikely to be warmth - more than liekly u havnt used enough hardener
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RichR
Premium Member
Registered: 17th Oct 01
Location: Waterhouses, Staffordshire
User status: Offline
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also did u allow the previous layer to fully harden b4 applying a new layer; as if so u'll have trapped styrene between the layers which wont be able to get out - u need to apply second layers of GRP when the previous layer becomes squeeky when u run ur finger over it - this way its on the evrge of setting but isnt quite
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Andy GSi
Member
Registered: 24th Mar 02
Location: Shropshire, Drives 2.0l 16v Corsa
User status: Offline
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quote:
Originally posted by LiVe LeE
hardener - what fibreglass have u used
i have used P40
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Colour-Tec Coachworks
Member
Registered: 18th Dec 03
Location: Winners of Max Power Live 2004 - Best Bodywork of
User status: Offline
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Is the surface tacky but everything solid?. If this is the case then no worries, the cured surface has a tendancy to feel a little sticky after its hardened so unless the fibreglass is soft... i wouldnt lose any sleep.
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MattyB
Member
Registered: 13th Nov 01
Location: 118.5bhp :D
User status: Offline
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I've never had a problem with FG taking too long! Its usually the opposite as i add to much hardner coz i'm impatient! 
I remember doing my mates mesh one really hot day, and it had solidified before i'd even got it into place!  Not doin that again!
I reckon its just coz u didnt use enuff hardner matey!
Matt
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Drew
Banned
Registered: 24th Nov 01
Location: County Durham
User status: Offline
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quote:
Originally posted by Colour-Tec Coachworks
Is the surface tacky but everything solid?. If this is the case then no worries, the cured surface has a tendancy to feel a little sticky after its hardened so unless the fibreglass is soft... i wouldnt lose any sleep.
i agree - once ya start sanding it, the tackyness will go and fibreglass will be solid and sand nice and dusty 
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Kris TD
Member
Registered: 25th Mar 02
Location: Ware, Hertfordshire
User status: Offline
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quote:
Originally posted by Colour-Tec Coachworks
Is the surface tacky but everything solid?. If this is the case then no worries, the cured surface has a tendancy to feel a little sticky after its hardened so unless the fibreglass is soft... i wouldnt lose any sleep.
i agree.
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