cep32 4 Posted December 14, 2018 Share Posted December 14, 2018 I'm prepping a mould for fibreglassing. The shape is very complex and as a result I have decided to destroy the mould to remove it from the fibreglass part. If I'm cutting the mould out, do I need to use PVA release agent on top of the 10 or so layers of release wax or can I get away with just using the wax? Cheers, Chris Quote Link to post Share on other sites
cep32 4 Posted December 18, 2018 Author Share Posted December 18, 2018 Having completed the job I figure I should feed back the result. I used turtle wax like you would use on your car. 10 thin layers with drying time in between. Polish once hard. Then glass straight over top. For the first layer of glass I wet the glass out on a plastic plate first then laid it on the mould. This was to avoid any chance of the wax contaminating the glass weave. The result has been good. The mould released easily without the need for PVA release agent. Keep in mind this probably only works if you are destroying the mould when you remove it. Cheers, Chris Quote Link to post Share on other sites
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