WWA Info Exchange

For Woodworkers By Woodworkers
It is currently Sun Nov 19, 2017 12:47 pm

All times are UTC - 5 hours




Post new topic Reply to topic  [ 5 posts ] 
Author Message
 Post subject: Rude & Crude question
PostPosted: Sun Mar 07, 2010 11:06 am 
Offline
Veteran
User avatar

Joined: Tue Feb 22, 2005 1:01 am
Posts: 55
Location: Timonium MD USA
Have been using Dave's R&C method for years on figured woods with great success - until this weekend!

Currently building a cherry and maple blanket chest. Panels are 13"wide maple with figured center area and tiger stripe edges. Rails, legs and top are curly cherry.

Applied the 1# cut shellac yesterday(reduced Zinssers SealCoat) and I noticed blotchy areas on some of the cherry(mosly on the rails pieces) and some mild blotchy areas in the figured areas of the maple. I have never seen this in 5 years of using this process. I did see some indications of this when I did a mineral spirits wash the previous day.

A suspect issue might be my ClearCoat which is about 3 years old? It looked fine.

Has anyone experienced this and what might be the problem?

Thanks
Bill


Top
 Profile  
 
 Post subject:
PostPosted: Sun Mar 07, 2010 1:59 pm 
Offline
Veteran

Joined: Sat Sep 06, 2003 12:01 am
Posts: 1884
Location: San Diego, CA USA
Hey Bill,
Could very well be the age of the finish you are using but, more likeley, the age of the Zincor. I've always used a freshly made 1 lb cut of dewaxed blond shellac. The Zincor has an expiration date on the can.
good luck,
Don


Top
 Profile  
 
 Post subject:
PostPosted: Mon Mar 08, 2010 11:35 am 
Offline
Veteran

Joined: Thu Jul 31, 2003 12:01 am
Posts: 2328
Location: University City, MO
You've just confirmed my belief in mixing my own shelac from flakes. You can keep the flakes around for three years but not the shelac. I'd sure suspect the age of the Zinsser(sp?) and I have an inate distrust of the "major" vendors in the big box stores and think that there may be enough wax in there to cause problems.

My attitude is why devote all that time an' energy to two beautiful timbers and then take a short cut on the finishing.

Flakes are hard to find but there are a couple of dealers on line. I ususally order one pound bags of the blond and, if I can find it, untra-blond. I mix it in a mayo jar of all things and don't know if it's a 1# or 5# cut, I just know the ratio I use and it's been effective for me.

_________________
Joe T


Top
 Profile  
 
 Post subject:
PostPosted: Mon Mar 08, 2010 2:58 pm 
Offline
Veteran

Joined: Tue Oct 21, 2003 12:01 am
Posts: 4404
Location: Northern Maine and out of the city.
Just move to a big city :D :D


Top
 Profile  
 
 Post subject:
PostPosted: Mon Mar 08, 2010 4:36 pm 
Offline
Veteran
User avatar

Joined: Tue Feb 22, 2005 1:01 am
Posts: 55
Location: Timonium MD USA
I concurred with the OLD shellac theory and finally went and bought blonde flakes and mixed up a 1# cut.

Applied the washcoat after I planed 1/32 off the outside of the 4 worst rails. After two hour drying time there were the blotches on all 4 pieces with no obvious improvement. I guess they were very wild grain boards that did not want to cooperate.

At least I learned to mix my own shellac!

Thanks for the feedback

Bill


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 5 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: Bing [Bot] and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Group