Finish Question - Cyno

Bumlak

Bumlak

AzB Silver Member
Silver Member
What would cause sections of a cyno finish to frost while drying? I have my suspicions such as humidity but I'm new to using cyano. For reference I am using Bob Smith thin.

Thanks,

Erich
 
So it was thin cyno (recommended by several local pen turners) and I used no accelortor. This was on rosewood. The cyno.was thin enough that it would actually smoke on the paper towel after I would do a coat. I'm familiar with off gassing and cyno but I've never seen that happen.
 
Although a picture might help, I'm thinking that if the rosewood was not wiped with alcohol to remove the surface oils prior to the cyno, the frosting could be an adherence problem.

Just a thought,
Alan
 
aphelps1 said:
Although a picture might help, I'm thinking that if the rosewood was not wiped with alcohol to remove the surface oils prior to the cyno, the frosting could be an adherence problem.

Just a thought,
Alan[/QUOTE)

You could wipe the cue as per the suggestion, then follow with a light coat of a mixture of denatured alcohol and shellac as a sealer for the rosewood.
Click to expand...
 
album.php


You can barely see the color variation at this point but it's there. Towards the wrap bed is what frosted up. Towards the delrin seemed to stay just fine.

http://forums.azbilliards.com/album.php?albumid=2221&pictureid=16608
 
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The finish has been put on to thickly. The frosting is where the finish has got hard while the moisture was still rising through the finish.

Dick
 
Thanks Dick. I'm assuming dry time between coats will depend on the thickness of the cyno and the oil used to slow down the dry time. I'll keep playing with it. I think I did 15 minutes between coats. I'll try to thin out the spread and allow a little more time between.

Erich
 
Bumlak said:
So it was thin cyno (recommended by several local pen turners) and I used no accelortor. This was on rosewood. The cyno.was thin enough that it would actually smoke on the paper towel after I would do a coat. I'm familiar with off gassing and cyno but I've never seen that happen.
Click to expand...

That happens with some paper towel brands. Chemical reaction between the cyno and something in the paper towels. Try using the blue shop paper towels they will give you a smoother application and no smoke. Apply the cyno in thin passes and smooth as possible, as soon as the paper towel will not disturb the surface apply next coat; should be less that 15 minutes.

Mario
 
Oil doesn't slow the curing of CA. In fact, it aids in the process, such as the oils in your skin causing it to harden instantly. On the positive side, it enhances adhesion. Oil penetrates the wood and CA bonds quite well with oil. If you're getting cloudy areas, it's likely due to a solvent evaporating from under it. For instance, if you wipe the cue with alcohol and run a coat of CA before the alcohol has evaporated entirely, you'll get clouds. As mentioned, it may also be a reaction between the CA & paper towel, especially if the CA is snapping off before it has a chance to bond with the surface. You may think about looking into something other than paper towel for leveling the finish, something more rigid & less absorbent so you can level/flatten the finish. Pen turners have only a couple inches of wood to finish. You have 29"+, and it has to be flat & smooth & flawless or else it looks terrible. It's only logical that your technique would be different than a pen turner's.

You wouldn't use a ball peen hammer to drive a steak in the ground, nor would you use a sledge hammer to drive a finish nail. Same basic principle, but different scale. A paper towel can be used to apply CA to a cue, but that doesn't mean it's the correct tool for the job.
 
It is called Frosting and when it happens sand that coat smooth and clear before proceeding with another coat. It just comes with the territory when using Super glue for a finish
 
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