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XCR Resin delamination
XCR Resin delamination
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Junior
Junior
posted 8 Years Ago
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I've been refurbishing a kayak paddle (blades) by sanding back and applying coats of XCR laminating resin. All has been working well until I tried to apply multiple coats without the full 24 cure in-between.
I noticed in one of the easy composite videos that you can apply another coat once the first has reached the tacky stage (about 2 hours), so I followed this procedure applying three coats with 2 hours in between, then letting it all fully cure.
Now I have attempted to flatten the resin, the individual layers are beginning to delaminate one by one. Is there any reason for this?
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Junior
Junior
posted 8 Years Ago
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Just at home, I don't have access to workshop conditions.
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XCR Resin delamination
Junior
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8 Years Ago
Iv had the same issues number of times, keep getting told it's mixing ratios, which I can't see how...
Interloper393
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8 Years Ago
The only reason for it that I can see is blushing. I'm not sure if the XCR is supposed to be...
Hanaldo
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8 Years Ago
What's blushing?
Junior
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8 Years Ago
Amine blush. It's a reaction between the amines in the hardener and moisture/carbon dioxide in the...
Hanaldo
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8 Years Ago
Just took a look at the TDS, and it appears the XCR is in fact very sensitive to amine blush. What...
Hanaldo
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8 Years Ago
[quote][b]Hanaldo (22/05/2017)[/b][hr]Just took a look at the TDS, and it appears the XCR is in fact...
NTF6
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8 Years Ago
Just at home, I don't have access to workshop conditions.
Junior
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8 Years Ago
I would also tighten up on your weighing and mixing as slight errors in these can all contribute to...
Warren (Staff)
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8 Years Ago
I am using digital scales and mixing up 12g at a time (9g resin, 3g hardener).
Junior
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8 Years Ago
Ah, see small amounts are very difficult to measure accurately enough. With epoxy you should always...
Hanaldo
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8 Years Ago
Yeh there's quite a few epoxies out there that state they are non-blushing.
Hanaldo
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8 Years Ago
I work in a room in my house. , always warm and.cosy :) Always try to mix a bigger amount by doing...
Interloper393
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8 Years Ago
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