Thread: CA problems

Ditch the pump spray for an aerosol one or get a spray pump that sprays a hell of a lot finer.

Basically what is happening, is the the spray from the pump spray is coming out too heavy in droplets rather than a fine aerosol spray.

try to aim the pump about 6 inches above the blank.

Could this also be a climate reaction ambient temp to cold just a thought

Originally Posted by wheelinround

Could this also be a climate reaction ambient temp to cold just a thought

Cold actually retards the setting of CA, so probably not. I think the others have nailed it, either use a finer mist and less, or don't use a accelerator at all.

I've been reading up on CA, and it's said it produces a rather spectacular exothermic reaction when placed on cotton. I just remembered that, I'm off to give it a try.

Been there, done that, not really that cool. Supposedly if you do it properly you can get the cotton to catch on fire. Mine merely got hot. It was kind of hard to tell, I dumped copious amounts of of CA on a cottonball and watched, smoke/vapor arose, I waved my hand around trying to feel the heat. Couldn't feel any even though I knew yes, there was an exothermic reaction going on. Can anyone see where this is going? Yes, I touched it. Yes it stuck to me. Yes it was hot. Luckily it had rained recently and there was a wash bin full of water sitting nearby. Me thinks the cotton ball actually catching on fire is an urban myth, although probably under the ideal and perfect laboratory settings it would be possible. Anyhow, that was my bit of foolishness for the day. (^:

Matt,
I am laughing with you brother! That is kind of like the "Don't push" button....ya just gotta push it, plus, when I first heard about the heat reaction, I had to try it myself and yep....it got hot...yep, it stuck to my finger...and in recognition of my ignorant man-pig mentality, I had to go and tell all my buddies what I had done. I am sure a couple of them went and tried it too.
I can't see it actually catching flame, but it do get pretty warm.

Rick

aaaa

Fred, did any of those answers solve the problem you have been having?! Amos

Or cause any new ones?

Originally Posted by ScrollZilla

Matt,
I am laughing with you brother! That is kind of like the "Don't push" button....ya just gotta push it, plus, when I first heard about the heat reaction, I had to try it myself and yep....it got hot...yep, it stuck to my finger...and in recognition of my ignorant man-pig mentality, I had to go and tell all my buddies what I had done. I am sure a couple of them went and tried it too.
I can't see it actually catching flame, but it do get pretty warm.

Rick

Sounds a lot like "Hey, Bubba! Watch this."

Joe

I have been using BO and CA and had no problems
I fold a piece of paper towel ot about 6 layers put some Boiled Oil on paper apply
to the work, turn lathe on and burnish ,then CA onto the BO on the paper apply
to the work ,turn lathe on and burnish.This process is done 3or4 times and the end result very good
Regards
David

I find the thin CA sometimes goes white no matter what I do, although as others suggest it can be minimised. The medium and thick are not as bad. These days I either don't use the accelleratorn on the thin stuff, it usually goes hard over a cup of coffee, or ensure there is at least 2mm of timber still to turn. I don't use the thin stuff on large cracks, only very small ones or on timber I want stabilized.

I forgot to say that I use the thick CA
David

Originally Posted by Woodenink

Fred, did any of those answers solve the problem you have been having?! Amos

Thanks for all the replies guys, certainly food for thought there

Amos, in short I don't know as I have been out all day and have only just come home.

Basically I am trying to stabilise some very porous material, will when one of the pen swaps I am in is finished, and at the same time filling up some of the bigger holes.

The stabilising with the thin CA works fine, as long as I don't use the accelerator. Yesterday I was trying to finish a second pen and used the accelerator, of course it was very cold as well, and I got white spots all over. The worst was where I was using thick CA in the bigger pinholes and using accelerator.

When I get to Melbourne again I will buy an aerosol, I will also try using a new lot of CA that I got in from Monty in the US, I have 3 grades. I will compare those to the locally sourced material.

I am also going to experiment with casting these blanks in PR now that I have my silicone moulds that I bought from the US as well.

Fred if it very porous it may be wise to let it cure naturally for say an hour and then apply accelerator, I didn't have any success with the bottle accelerator that uses a pump spray, the aerosol type works really well, Amos
Good luck with casting your own blanks. Amos