Xpreg xc110


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Hanaldo
Hanaldo
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How did you post cure the mould before putting it into service? And has the mould lost its surface finish at all, or only the components you make from it?
Shaneer22
Shaneer22
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Lester Populaire - 11/29/2019 4:09:03 PM
Thomb - 11/28/2019 12:23:11 PM
Hi all,

Im still having some problems with the xpreg in gelcoat moulds. When i use aluminium moulds all is good. When i use the high temp gelcoat moulds i always get a dry finish on the mould side. I tried some longer times and diffrent temperatures but i keep getting these results. I only use breather underneath the mould but that always worked for me and only the bag where it it packed in to press on the carbon. Does anyone have a clue what could be it or what i can try?







Sounds like a temperature ramp problem to me. The aluminium moulds probably have a way higher mass and heat slower than a composite mould. Would probably be worth to stick a temperature probe in there and monitor that!

Having similar problems myself.i wonder if it's the way the molds heat up due thickness and expansion.












Lester Populaire
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Thomb - 11/28/2019 12:23:11 PM
Hi all,

Im still having some problems with the xpreg in gelcoat moulds. When i use aluminium moulds all is good. When i use the high temp gelcoat moulds i always get a dry finish on the mould side. I tried some longer times and diffrent temperatures but i keep getting these results. I only use breather underneath the mould but that always worked for me and only the bag where it it packed in to press on the carbon. Does anyone have a clue what could be it or what i can try?







Sounds like a temperature ramp problem to me. The aluminium moulds probably have a way higher mass and heat slower than a composite mould. Would probably be worth to stick a temperature probe in there and monitor that!

Thomb
Thomb
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Hi all,

Im still having some problems with the xpreg in gelcoat moulds. When i use aluminium moulds all is good. When i use the high temp gelcoat moulds i always get a dry finish on the mould side. I tried some longer times and diffrent temperatures but i keep getting these results. I only use breather underneath the mould but that always worked for me and only the bag where it it packed in to press on the carbon. Does anyone have a clue what could be it or what i can try?







Edited 7 Years Ago by Thomb
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