Uni-Mould curing issue

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Uni-Mould curing issue

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Legoman	Legoman posted 6 Years Ago HOT Topic Details
Group: Forum Members Posts: 29, Visits: 622	As you can see there are different colours on the cured mould surface. Probably I failed with lamination and got some air under the last layer...any idea?
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MarkMK	MarkMK posted 6 Years Ago ANSWER Post Details
Group: Forum Members Posts: 338, Visits: 2K	I'm sure it would be fine proceeding in that way but, ideally, you need to get 3-4 layers of the heavier CSM on at the same time so that the build-up of the tooling resin can reach its usual curing temperature. Less resin applied would likely lead to patches similar to what you've seen rather than limit them I wouldn't worry at all regarding the slightly different colour of the cured resin, as long as your surface gel coat is sound and everything has cured hard I've seen similar patches many times on different moulds and as Hanaldo said, it's likely that some patches cured at slightly different temperatures or that some parts of the resin were richer in the filler element of the product which you can sometimes see accumulated at the bottom of the can if not thoroughly mixed before use
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Legoman	Legoman posted 6 Years Ago HOT Post Details
Group: Forum Members Posts: 29, Visits: 622	+x MarkMK - 9/19/2019 1:27:09 PM I'm sure it would be fine proceeding in that way but, ideally, you need to get 3-4 layers of the heavier CSM on at the same time so that the build-up of the tooling resin can reach its usual curing temperature. Less resin applied would likely lead to patches similar to what you've seen rather than limit them I wouldn't worry at all regarding the slightly different colour of the cured resin, as long as your surface gel coat is sound and everything has cured hard I've seen similar patches many times on different moulds and as Hanaldo said, it's likely that some patches cured at slightly different temperatures or that some parts of the resin were richer in the filler element of the product which you can sometimes see accumulated at the bottom of the can if not thoroughly mixed before use Yep thanks Mark! Everything is fine. I paid more attention on the other side and it is cosmeticly much better. Anyway the chemists told me only 2 layers is not recommended. If the laminating is too thin sometimes the resin cant reach its prescribed curing temerature and can shrink...which is no good. At all! Here is the other side:
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