Humidity and resin

pepsi45
New Member

Posts: 2

Humidity and resin Jan 28, 2018 4:53:06 GMT -5

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Post by pepsi45 on Jan 28, 2018 4:53:06 GMT -5

G'day all. I'm living in the top end of Oz and its bloody humid at the moment! We are hitting around 70% humidity day to day.

I know resins don't like humidity over 50%, however, with an air conditioner in the room I cast in, I can get room humidity down to about 48%.
Surely I'm not the only person to ever have this dilemma.
Is it possible to get polyurethane resins to set properly in this climate and if so, can I get some tips and tricks pretty please?
Cheers in advance!
Jamie Winderlich

Brian
Moderator

Posts: 319

Humidity and resin Jan 28, 2018 14:13:47 GMT -5

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Post by Brian on Jan 28, 2018 14:13:47 GMT -5

Greetings from the other Oz....errr ah Kansas, Dorthy, Toto, the Wizard of Oz...

As long as you use the proper mix ratio, I prefer by weight, you should not have any issues as far as relative humidity is concerned. Here in North East Kansas U.S.A we experience the same type of humidity percent's as you do and the heat indecencies can be anywhere from 80 to 100 degrees f. on any given day in the Summer. My hobby room is air conditioned as well, so I have had no issues what so ever with pouring resin, making RTV rubber molds, product storage etc etc. I have poured year round and can not tell any difference from season to season.

pepsi45
New Member

Posts: 2

Humidity and resin Jan 29, 2018 2:56:41 GMT -5

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Post by pepsi45 on Jan 29, 2018 2:56:41 GMT -5

3 clicks of the heels and there's no place like home!

Cheers for the info Brian, I've been hesitant to invest in anything in case it was a failed experiment!
Do you use normal quick setting polyurethane or a slower setting time?

Cheers, Jamie Winderlich

Brian Moderator Posts: 319	Humidity and resin Jan 29, 2018 7:50:23 GMT -5 Quote Select Post Deselect Post Link to Post Back to Top Post by Brian on Jan 29, 2018 7:50:23 GMT -5 What I pour is the regular RC-3 for resin.
	Last Edit: Jan 10, 2019 19:09:01 GMT -5 by Brian

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Humidity and resin

Post by pepsi45 on Jan 28, 2018 4:53:06 GMT -5

Post by Brian on Jan 28, 2018 14:13:47 GMT -5

Post by pepsi45 on Jan 29, 2018 2:56:41 GMT -5

Post by Brian on Jan 29, 2018 7:50:23 GMT -5

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