CA finish question - Will it apply very well when cold? - Page 2 - International Association of Penturners
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Old 12-05-2016, 01:37 PM   #11 (permalink)
 
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I'm sure Chuck is right. To be as sure as possible given your brand, you can always apply a coat to an unturned blank and then see what a shot a accelerator will do.
My problem is finding completely compatible glue accelerator. It seems in this country the mystical accelerator assumes rarity and high costs. Seeing white reactions destroys the moment.

Peter.
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Old 12-05-2016, 02:17 PM   #12 (permalink)
 
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Forget the CA, what about yourself!! I hate being out in the cold. Especially when you can't feel your fingers
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Old 12-05-2016, 05:03 PM   #13 (permalink)
 
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Quote:
Originally Posted by TonyL View Post
I'm sure Chuck is right. To be as sure as possible given your brand, you can always apply a coat to an unturned blank and then see what a shot a accelerator will do.
My problem is finding completely compatible glue accelerator. It seems in this country the mystical accelerator assumes rarity and high costs. Seeing white reactions destroys the moment.

Peter.
Peter, I've used Zip Kicker with a few different brands of CA. It appears to be compatible with many brands.
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Old 12-05-2016, 05:47 PM   #14 (permalink)
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Accelerator does what it is supposed to do, but it usually creates heat in the process. Heat and cold in even moderate humid/moisture situations will draw moisture into the mix. Cloudiness, white specs occur much more so in cooler and colder situations for me. I realize that some of you have experience in avoiding the white spots and cloudiness underneath. If you could elaborate on how to prevent that in cold weather, it might be helpful.

Now if you are in ARIDzona or the Sahara, I could understand.
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Old 12-17-2016, 11:35 PM   #15 (permalink)
 
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I have a kerosene heater for the garage that warms it up nicely, but it dumps tons of moisture into the air. I also turn and finish without the heater when it's about 50 degrees in there. I use the original and their new Flex CA from Mercury Adhesives and it does great in all seasons.


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Old 12-18-2016, 02:31 PM   #16 (permalink)
 
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As I understand, CA curing is a chemical process. Most chemical processes proceed more slowly at lower temperatures. Even though you apply accelerator, the chemical reaction involved in CA curing will be slower. Therefore you have to allow longer time between applications of CA/accelerator, and you have to allow longer time after your last application for the overall curing process to occur.

A lower air temperatures, the humidity is usually lower, so I would think that adverse humidity effects would be lessened during CA application in cold weather.

I would think that you should allow extra time before bringing your CA-coated blank indoors, because indoor temperature air will have higher humidity and could affect the coating.

I keep those considerations in mind when working with CA and have had no problems.

When I was a novice with CA, I used to have the whitening problems often mentioned.
I can't explain the reason, but in the last 4 or so years of working with CA finishing I have had no whitening problems. It seems to me to be a matter of technique but I don't know what improvements I have made.
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Last edited by magpens; 12-18-2016 at 02:33 PM.
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