Foggy CA/BLO Finish - Page 3

Jgrden · 07-24-2011, 07:35 PM

Quote:

Originally Posted by Akula

don't stop....when I put on CA, it starts out clear, turns "foggy" but keep rubbing and it will clear right up..or it should

also if it's one spot, make sure there is no water...sweat, any moisture on that spot

Quote:

Originally Posted by renowb

Humidity maybe?

AKULA is right, but humidity is the enemy here. That is why we moved to the Mountains, no humidity.
So how do we fix this? I agree that taking more time while the lathe is running to clear the fog. Low speed is suppose to work but I don't follow that rule. You live in a sub tropic climate where humidity is an issue.

Dulos · 07-26-2011, 08:59 PM

Okay guys, I did some experimenting. I kept my blanks in an air conditioned environment before turning. I turned two pens out of black walnut. The first one fogged up. About 50% of the finish got that cloudy look and there was no real rhyme or reason to where it fogged up. And the really funny part of it was that it looked good when I took it off the lathe and grew foggy in about 20 minutes. But the second pen came out pretty good. It wasn't as crystal clear as I would like but still pretty good. The only difference between the two was that I put friction wax on the first one.

I am thinking that friction wax somehow is part of this. Maybe it is the heat, maybe I am putting on the friction wax too soon and sealing in some chemical.

I am going to try a new bottle of CA glue next and we will see what happens next. I will let you know.

Dulos

Timbo · 07-26-2011, 09:37 PM

I read all the posts and no one mentioned the possibility of the paper towel being the cause. When I first began using paper towels to apply CA, occasionally I would linger a little too long, or touch the paper towel to the blank before the previous coat was completely dry. The blank would pick up some of the fibers from the paper towel, which was not noticeable by me. Subsequent coats of CA would seal the fibers in nicely. It was not until I got to a certain point in the polishing process that the fibers became noticeable, but they did not look like fibers, it appeared like random cloudy patches. I'm much more careful with my CA application now. If I even think I may have paper towel contamination, I sand down that layer of CA. I no longer see that problem.

Dulos · 08-02-2011, 08:33 PM

Again, thank you for all the tips! I really appreciate your input and ideas. I have been working this this issue some more. I bought a new bottle of CA glue and so far I do not have cloudy spots. So, that might have taken care of it.

However, my finish is not as clear as I would like. While it isn't exactly cloudy, it isn't crystal clear either. I do suspect that this issue is caused by humidity. Our weather in MN has been oppressively hot and humid. Most of the time I have avoided the shop, but when the heat and humidity break a bit I venture into the shop for about 30-45 minutes. Even then it is so hot I and humid I can only stand it for a while.

07-26-2011, 09:37 PM	#23 (permalink)
Timbo Join Date: Jan 2008 Location: North Wales, Pennsylvania, USA. Posts: 801 Photos: 94	I read all the posts and no one mentioned the possibility of the paper towel being the cause. When I first began using paper towels to apply CA, occasionally I would linger a little too long, or touch the paper towel to the blank before the previous coat was completely dry. The blank would pick up some of the fibers from the paper towel, which was not noticeable by me. Subsequent coats of CA would seal the fibers in nicely. It was not until I got to a certain point in the polishing process that the fibers became noticeable, but they did not look like fibers, it appeared like random cloudy patches. I'm much more careful with my CA application now. If I even think I may have paper towel contamination, I sand down that layer of CA. I no longer see that problem. __________________ Timothy Neal North Wales, PA

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07-26-2011, 08:59 PM	#22 (permalink)
Dulos Join Date: Jun 2011 Location: Faribault, MN Posts: 7 Photos: 0	Okay guys, I did some experimenting. I kept my blanks in an air conditioned environment before turning. I turned two pens out of black walnut. The first one fogged up. About 50% of the finish got that cloudy look and there was no real rhyme or reason to where it fogged up. And the really funny part of it was that it looked good when I took it off the lathe and grew foggy in about 20 minutes. But the second pen came out pretty good. It wasn't as crystal clear as I would like but still pretty good. The only difference between the two was that I put friction wax on the first one. I am thinking that friction wax somehow is part of this. Maybe it is the heat, maybe I am putting on the friction wax too soon and sealing in some chemical. I am going to try a new bottle of CA glue next and we will see what happens next. I will let you know. Dulos

08-02-2011, 08:33 PM	#24 (permalink)
Dulos Join Date: Jun 2011 Location: Faribault, MN Posts: 7 Photos: 0	Again, thank you for all the tips! I really appreciate your input and ideas. I have been working this this issue some more. I bought a new bottle of CA glue and so far I do not have cloudy spots. So, that might have taken care of it. However, my finish is not as clear as I would like. While it isn't exactly cloudy, it isn't crystal clear either. I do suspect that this issue is caused by humidity. Our weather in MN has been oppressively hot and humid. Most of the time I have avoided the shop, but when the heat and humidity break a bit I venture into the shop for about 30-45 minutes. Even then it is so hot I and humid I can only stand it for a while.