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Old 06-07-2015, 03:40 PM   #1 (permalink)
 
Join Date: May 2015
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Default White Spots showing up days after finishing

Hey all! Like the title says, I am having issues with white spots a few days after finishing, but only on two pens so far. It hasn't shown up on any others that I can see.

I am using the StickFast CA finishing kit. I was told yesterday by a friend that he doesn't use StickFast because it has a tendency to be too brittle. Is this what's happening? I tried to get a picture that shows the spots. It's the very first layer (or at least not the top layer) that has them.


View in gallery


View in gallery

My finishing process currently is:

1 After sanding through 1000 (I do 220, 320, 400, 500, 800, 1000 - at low speed and then also longitudinally).

2 I'll clean it off with a rag while spinning. Seems to work for me to get all the dust off without any stuff hanging around.

3 Next I'll do a layer of THIN CA and hit it with two quick sprays of accelerator.

4 I'll do a layer of MEDIUM CA and then hit it with accelerator also.

5 I'll repeat 4 about 3-5 times.

6 I'll use the StickFast Gloss finishing on the blank.

7 I'll let it dry for a few hours (sometimes...heh) and then assemble.



The pen shown is a walnut European style pen. It only showed up in the past few days and it was NOT wet-sanded. The pen was laying on a towel with about 10 other pens close to a window in a room that gets about 80-85 degrees during the day.

Is it something I'm doing wrong or should I be using a different brand?

Last edited by Wolfeman46; 06-07-2015 at 04:05 PM. Reason: added more info
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Old 06-07-2015, 06:40 PM   #2 (permalink)
 
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The spots you see, that is moisture from inside under the coating. Stickfast been proven time and time again to be brittle and causes the shattered glass effect. Showing up days later is because the inside is finally drying.
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Old 06-07-2015, 09:15 PM   #3 (permalink)
 
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Quote:
Originally Posted by edstreet View Post
The spots you see, that is moisture from inside under the coating. Stickfast been proven time and time again to be brittle and causes the shattered glass effect. Showing up days later is because the inside is finally drying.
Very unfortunate since that's all I had at the time... Hoping none of my others do that, but I would think if they haven't done it by this point I should be okay... The walnut was the last pen I made (other than acrylic). I recently got some Insta-Bond so I'll switch it out and if anything return the kit to Rockler since I still have a good bit left in there and then order something else (I was recommended the Insta-Bond CA Pen Finish from CSUSA). Thanks for the reply Ed!
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Old 06-07-2015, 09:19 PM   #4 (permalink)
 
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Insta-bond accelerator also contains acetone, which is very bad. It is a low cost, cheap quality and inferior item that is used. I have CSUSA listed in the 'mixed' category as stocking one good and one bad accelerator.
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Last edited by edstreet; 06-07-2015 at 09:21 PM.
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Old 06-07-2015, 09:27 PM   #5 (permalink)
 
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Insta-bond accelerator also contains acetone, which is very bad. It is a low cost, cheap quality and inferior item that is used. I have CSUSA listed in the 'mixed' category as stocking one good and one bad accelerator.
I actually grabbed the Hot Stuff NCF accelerator that's supposed to be here Tuesday. Hopefully that was the good you were mentioning.
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Old 06-07-2015, 10:50 PM   #6 (permalink)
 
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IMO, your using to much accelerator. The only time I have ever had white spots show up, was when I used more accelerator than usual. I try to only use accelerator on my first two coats of CA, after that, I let the glue dry on it's own. Yes, it takes longer to do it that way, but, it works for me and I have lots of time to spare.
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Old 06-07-2015, 11:01 PM   #7 (permalink)
 
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NCF, sat city is non-acetone and in the 'good' class. All it takes is to pull the MSDS and find out.

Accelerator that causes white spots due to excessive use agents that attract moisture. GOOD accelerator does *NOT* exhibit this behavior. When using the GOOD accelerators you can drizzle the CA into a cup of the liquid and it will be clear.
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Last edited by edstreet; 06-07-2015 at 11:36 PM.
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Old 06-07-2015, 11:35 PM   #8 (permalink)
 
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Ed, where you wrote "cut" below, do you mean "cup" ?? .... Also, what does MSDS mean, and where can I find it ??

Quote:
Originally Posted by edstreet View Post
NCF, sat city is non-acetone and in the 'good' class. All it takes is to pull the MSDS and find out.

Accelerator that causes white spots due to excessive use agents that attract moisture. GOOD accelerator does *NOT* exhibit this behavior. When using the GOOD accelerators you can drizzle the CA into a cut of the liquid and it will be clear.
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Last edited by magpens; 06-07-2015 at 11:39 PM.
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Old 06-07-2015, 11:36 PM   #9 (permalink)
 
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Correct. I was able to change it. cut = cup.
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Old 06-08-2015, 12:55 AM   #10 (permalink)
 
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Ed, .... Also, what does MSDS mean, and where can I find it ??

Quote:
Originally Posted by edstreet View Post
NCF, sat city is non-acetone and in the 'good' class. All it takes is to pull the MSDS and find out.

Accelerator that causes white spots due to excessive use agents that attract moisture. GOOD accelerator does *NOT* exhibit this behavior. When using the GOOD accelerators you can drizzle the CA into a cut of the liquid and it will be clear.
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