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Thread: EasyCast Clear - post cure
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20th December 2016, 01:13 PM #1SENIOR MEMBER
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EasyCast Clear - post cure
Hi folks,
Got some easycast clear polyurethane resin from Barnes last time I was there by mistake (got easycast vs epoxycast wrong). Thought I'd give it a whirl despite the annoyance of having to post-cure, and I have some blanks in an old electric frypan at ~55-60 degrees now.
I can't find any info on exactly how this stuff should be post-cured, just that it should be (and it was a bit gummy out of the moulds). Does anyone have any experience with this stuff or even other polyurethanes? Is my 55-60 about right?
Cheers,
Danny
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20th December 2016 01:13 PM # ADSGoogle Adsense Advertisement
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20th December 2016, 02:27 PM #2SENIOR MEMBER
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Found it, I think. Looks like the suggestion is 66 C for 5-12 hours.
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20th December 2016, 05:14 PM #3
Surprised Polyurethane needs any post curing, the stuff usually goes off in minutes, but never used that brand before
Neil____________________________________________Every day presents an opportunity to learn something new
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20th December 2016, 05:38 PM #4SENIOR MEMBER
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It gelled and got hard enough to demould quite fast, but when I went to trim the ends the day after I discovered it was flexible and a bit gummy still. Might have been able to leave it for a few days but figured I should follow the instructions and post-cure!
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22nd December 2016, 07:53 PM #5SENIOR MEMBER
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So I played around some with some of the blanks from this, my guess of 55-63C for about 8 hours seems to have worked nicely - they cut and turn beautifully now. It doesn't sand quite as quickly as PR, and I almost messed up one blank because a deep cut didn't feel much different to a shallow one, but I'm quite happy with the resin!
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22nd December 2016, 09:51 PM #6
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23rd December 2016, 06:59 AM #7SENIOR MEMBER
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Yeah, I won't be buying any more, but happy to use the rest of what I have... I like Barnes but in this case it would have been really nice if they used different coloured boxes for their different products for dumbasses like me!
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23rd December 2016, 09:59 AM #8SENIOR MEMBER
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These are two I turned from this batch of resin last night. I don't know if it's related to the resin type or some other factor, but I got much more luck getting a 'special effect' from perlex duo than I've had in previous attempts using casting resin.
Cheers,
Danny
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29th April 2017, 05:43 PM #9SENIOR MEMBER
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Quick update on this resin. I've gotten happy with it, shame it's so expensive! After post-cure it's very hard (but doesn't seem to be brittle), and gives really good 'flash' from perlex (not sure how else to describe it, it's very bling-y). I might even buy some more of it when I run out, but will probably only use it for casting in resin saver moulds... It's too expensive otherwise.
Some pens from today with it:
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