Official Luthiers Forum!

Owned and operated by Lance Kragenbrink
It is currently Sun Aug 17, 2025 3:13 pm


All times are UTC - 5 hours


Forum rules


Be nice, no cussin and enjoy!




Post new topic Reply to topic  [ 4 posts ] 
Author Message
PostPosted: Sun Sep 07, 2014 9:31 am 
Offline
Koa
Koa

Joined: Tue Feb 24, 2009 9:23 am
Posts: 1372
First name: Corky
Last Name: Long
City: Mount Kisco
State: NY
Country: USA
Focus: Build
Status: Amateur
Attachment:
ImageUploadedByTapatalk1410099873.900175.jpg


So.... I tried to get fancy and repair a piece of chipped veneer on an antique clock. I made a piece of mahogany veneer, stained it and shellaced it to match, glued with hot hide glue, etc.

The problem arose when i clamped the veneer while gluing. An impression of the clamp transferred to the shellac. So i tried to french polish it out of the new veneer.

The denatured alcohol has discolored the original veneer - a milky, opaque "film" over the original finish. Perhaps it was varnish? And the wrong solvent (DA) has caused this discoloration?

What can i do to fix this discoloration? Thanks


You do not have the required permissions to view the files attached to this post.


Top
 Profile  
 
PostPosted: Mon Sep 08, 2014 7:16 am 
Offline
Brazilian Rosewood
Brazilian Rosewood
User avatar

Joined: Mon Dec 27, 2010 9:06 pm
Posts: 2739
Location: Magnolia DE
First name: Brian
Last Name: Howard
City: Magnolia
State: Delaware
Zip/Postal Code: 19962
Country: United States
Focus: Repair
Status: Professional
That whitish haze is most likely wax. You need to strip off all old wax and any other contaminates before you begin a finish repair. Naptha and a lot of elbow grease will take up old furniture wax pretty well. Now that you have finish over the wax it will be more difficult to remove. You may need to scrape it to get the wax off that is now sealed down.

_________________
Brian

You never know what you are capable of until you actually try.

https://www.howardguitarsdelaware.com/


Top
 Profile  
 
PostPosted: Mon Sep 08, 2014 9:15 am 
Offline
Koa
Koa

Joined: Tue Feb 24, 2009 9:23 am
Posts: 1372
First name: Corky
Last Name: Long
City: Mount Kisco
State: NY
Country: USA
Focus: Build
Status: Amateur
Thanks Brian!

Got it. that makes sense. I'm okay in terms of not having any finish over the wax because really I only finished the replacement piece and glued it in. Maybe not clear from the picture. I'll use naptha to remove the wax from that part of the veneer.


Top
 Profile  
 
PostPosted: Tue Sep 09, 2014 11:11 am 
Offline
Koa
Koa

Joined: Tue Feb 24, 2009 9:23 am
Posts: 1372
First name: Corky
Last Name: Long
City: Mount Kisco
State: NY
Country: USA
Focus: Build
Status: Amateur
Brian, You were right on! It was wax, and came off nicely with a little Naptha, cotton, and elbow grease. Mission accomplished. Thanks.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 4 posts ] 

All times are UTC - 5 hours


Who is online

Users browsing this forum: DennisK and 31 guests


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

Jump to:  
Powered by phpBB® Forum Software © phpBB Group
phpBB customization services by 2by2host.com