First part not totally released, clues needed


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Massimiliano
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Hi, I made my first part out of my first mould.
99% released fine but for some small areas where the tooling gelcoat merged with the gelcoat, please see pics.

I need your expert advise to understand what I did wrong not to repeat.

Mould made on Sunday, removed from pattern on Monday.
Left to rest until Thursday.

On Thursday, compounded with nw1 and polished with topfinish2.
Cleaned 2 times with ec mold cleaner.
One additional cleaning with acetone.
6 passes of Easy Lease every 15 mins
2 additional passes of miracle Gloss framed 15 mins
Left overnight to rest

On Friday two layers of white gelcoat framed one hour then hand layup with polyester laminating resin.

Demolded after 24 hours. It released pretty fine (with a bit of compressed air) but for the spots.

Any clue about what happened?
I think it is almost impossible I missed 6+2 times just those few spots...

Thanks a lot




Edited 5 Years Ago by Massimiliano
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Massimiliano
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Hojo - 5/11/2020 9:31:02 AM
typically light weight woven fabrics for the surface and heavy weight fabrics for bulking. Light weight fabrics give a better surface with less print. For example if you are making a carbon tool you can use 3k 200gsm for surface followed by 12k 600gsm for bulking. Some might suggest using veils for the surface but I m not a big fan of that as they typically have a microporosity issue. Be warned you wont get the same gloss level as gel coat, but you will get a tool surface that is way more durable

Thanks for the suggestions!

GO

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mporta71 - 5 Years Ago
hojo - 5 Years Ago
mporta71 - 5 Years Ago
hojo - 5 Years Ago
             Thank you!
mporta71 - 5 Years Ago
oekmont - 5 Years Ago
hojo - 5 Years Ago
mporta71 - 5 Years Ago
hojo - 5 Years Ago
                         Ok, so what do you use to infuse a tool? Directly reinforcement and resin?
mporta71 - 5 Years Ago
mporta71 - 5 Years Ago
hojo - 5 Years Ago
             Thanks for the suggestions!
mporta71 - 5 Years Ago
oekmont - 5 Years Ago
mporta71 - 5 Years Ago
oekmont - 5 Years Ago
             Thank you!
mporta71 - 5 Years Ago

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