Finishing

[Alton Slaughter]

I am finishing a redwood burl blank with thin ca and aerosol acceletator. After a few coats I noticed some hazy white places which I have had with other wood blanks. I had to sand the finish off and start over. Started again and they are back ? Just before that blank (different wood) I finished another wood blank the same way with no problems ??

Any suggestions.....Thanks Al

 

[ctubbs]

Have you removed all the sanding dust from the blank before you use the CA? Are you sure your blank is really dry? If you wet sanded the blank, it may have retained some moisture. That will give those white areas. Clean the blank with accelerator or acetone before applying the finish. Some use DNA for this but it tends to collect moisture from the air and can leave traces in the blank, so I have been told. Also be sure the previous coat is set before applying the next one. Sometimes moisture can be trapped between coats when conditions are just right (wrong?). Hope this can be of some help. Please DAMHIKT.
Charles

 

[renowb]

What ctubbs said. Humidity and moisture will cause this.

 

[RDH79]

Too much accelerant will cause white spots

 

[Younka]

i have got results like what you are geting by applying to much forse.

 

[nativewooder]

Well, it only takes thin CA a few seconds to dry. Why do you use "accelerator"? I used to use "accelerator" until I decided that I had enough time to let the CA dry without any help. If it took an extra 10 or 15 seconds, I would just take an extra breath!:biggrin:

 

[Drstrangefart]

I've gotten that haze from not waiting 40 seconds or so before hitting medium CA with activator and holding it WAY too close.

 

[scottsheapens]

I've also had the same issues. If you use the activator, only use very little, if any at all.

 

[Wood Butcher]

Could it be that the blanks are not completely dry? I found that any moisture in the blank causes the reoccuring blush. Once I was doing a demo and forgot to take the accelerator. I remembered that moisture also promotes drying so I stopped the lathe and got real close and breathed on the newly applied CA and the whole doggone thing fogged up. I explained that this is a demo of how to fowl up a finish.
WB

 

[toyotaman]

Some wood has natural "oil" in it which will cause it to turn milky looking. Use "Acetone" to wipe down the blank and that should solve your problem.

 

[Alton Slaughter]

Thanks guys,
Looks like too much accelerator and too close is my problem . I will watch this in the future and see if it helps.

Closed Al

 

[chris63]

I never never use accelerator on thin that seamed to stop white spots. only use on med or thick ..