Modeling Clay to make mold

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Modeling Clay to make mold

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Lawrence	Lawrence posted 10 Years Ago HOT Topic Details
Group: Forum Members Posts: 2, Visits: 5	I'm thinking to use modeling clay to make mold. The idea is when clay is harden and then apply the chopped strand mat over. Is this a feasible method?
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Matthieu Libeert	Matthieu Libeert posted 10 Years Ago HOT Post Details
Group: Forum Members Posts: 955, Visits: 3.4K	do you still want to remove the clay after or not? Did not try it that way yet...wouldn't be that smart because water/moist and polyester or epoxy arent good friends you could seal the clay with a plastic bag or aluminium foil to avoid that Matthieu Libeert Founder MAT2 Composites X Sports website: www.mat2composites.com
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TURK	TURK posted 10 Years Ago HOT Post Details
Group: Forum Members Posts: 101, Visits: 662	Lawrence (02/09/2015) I'm thinking to use modeling clay to make mold. The idea is when clay is harden and then apply the chopped strand mat over. Is this a feasible method? Hi Lawrence, I experimented with that procedure last year. I used DAS modelling clay, as it's an air drying clay I thought I might get away with it. The whole thing turned into a disaster ! As a precaution I 'sealed' the clay 'plug' using vinyl mat emulsion paint before hand laying glassfibre ........ it still stuck to my mould like sh*t to a blanket unfortunately. I think the material you decide to use for your mould, greatly depends on the shape you want to create. MDF seams to be a favourite, but it can be difficult to work. Have you considered low density polyurethane foam, with a layer of body filler ? TURK Edited 10 Years Ago by TURK
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