Gel coat too thin?


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Vips
Vips
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Hi guys,

I had my first attempt at mould making recently on a door handle surround. It may not have been the best initial mould to make but at the same time it didn't look too complex. The one problem I did seem to have was the gel coat appeared to be too thin. It ran off the sharp edges and left a very very thin layer around these bits. I mixed up the gel coat accordingly but it seemed as though it simply ran off the waxed part. I will post pictures shortly. Perhaps I was supposed to fully submerge the part within the plasticine boundary?

Cheers in advance!

Vips
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Matt (Staff)
Matt (Staff)
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Hi Vips,

OK, I'll be interested to hear how you get on.If the specific shape of your mould (and the temperature you work at) meansthat you still struggle to keep the gel on the vertical sides of the mould thenyou could look at adding colloidal silica to the gel, effectively making iteven thicker and reducing its propensity to 'flow' slowly. If you do add silicaalways remember to add a small amount at a time and agitate the mix thoroughly,then leave for a while, then agitate again. This will develop the full thickeningproperties of the silica.

I hope this helps, Matt

Matt Statham
Easy Composites / Carbon Mods - Technical Sales
Edited 13 Years Ago by Matt (Staff)
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