Surface requirement for mould making

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Surface requirement for mould making

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Makerbot	Makerbot posted 9 Years Ago HOT Topic Details
Group: Forum Members Posts: 8, Visits: 126	Hi, I am planning on making some car panel moulds, can you tell me if I can make the mould from panels in primer or do they need to be painted? Thanks
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Matthieu Libeert	Matthieu Libeert posted 9 Years Ago HOT Post Details
Group: Forum Members Posts: 955, Visits: 3.4K	If possible I allways avoid primer/bondo and so on to make a mould of...I always topcoat it or clearcoat it with a 2K to make sure it demoulds well... It's in the nature of these products to absorb (normally paint) coming on top so not ideal to make a mould on with the risk of it sticking...with a topcoat or clearcoat, 2K that is fully cured!, you should never have any problems with demoulding with the chemical release agent Matthieu Libeert Founder MAT2 Composites X Sports website: www.mat2composites.com
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Makerbot	Makerbot posted 9 Years Ago HOT Post Details
Group: Forum Members Posts: 8, Visits: 126	matthieutje65 (22/01/2016) If possible I allways avoid primer/bondo and so on to make a mould of...I always topcoat it or clearcoat it with a 2K to make sure it demoulds well... It's in the nature of these products to absorb (normally paint) coming on top so not ideal to make a mould on with the risk of it sticking...with a topcoat or clearcoat, 2K that is fully cured!, you should never have any problems with demoulding with the chemical release agent Thanks Matthieu, more to consider for the effort/result mix.
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Surface requirement for mould making

Makerbot - 9 Years Ago

Professionally sprayed primer from a 2 pack system will usually be fine once fully cured. You should...

Warren (Staff) - 9 Years Ago

[quote][b]Warren (Staff) (21/01/2016)[/b][hr]Professionally sprayed primer from a 2 pack system will...

Makerbot - 9 Years Ago

I mould from primered surfaces (2 pack) and I find the primer takes a sprayed coat of PVA release...

FLD - 9 Years Ago

[quote][b]FLD (21/01/2016)[/b][hr]I mould from primered surfaces (2 pack) and I find the primer...

Makerbot - 9 Years Ago

If possible I allways avoid primer/bondo and so on to make a mould of...I always topcoat it or...

matthieutje65 - 9 Years Ago

[quote][b]matthieutje65 (22/01/2016)[/b][hr]If possible I allways avoid primer/bondo and so on to...

Makerbot - 9 Years Ago

Been looking into this recently and do not recommend fill in any way as it comes out of the part and...

VVS - 9 Years Ago

[quote][b]VVS (26/01/2016)[/b][hr]Been looking into this recently and do not recommend fill in any...

Makerbot - 9 Years Ago

I think you guys are misunderstanding how a primer works. Primers don't absorb anything, they are...

Hanaldo - 9 Years Ago

Actually primer is porous. Thats why they require a top coat as a color and protective layer. You...

kidpaint - 9 Years Ago

I do believe people have long confused the hygroscopic nature of some primers with porosity. Just...

Hanaldo - 9 Years Ago

Hanaldo, Very well put, your advice is always on the ball. You are an asset to this...

The Fibreglass King - 9 Years Ago

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Surface requirement for mould making

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