Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Multi-Way Conventional loudspeakers with crossovers

Veneer bubbling- argh!
Veneer bubbling- argh!
Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 27th June 2004, 04:12 AM   #1
tktran is offline tktran  Australia
Account Disabled
Join Date: Mar 2003
Location: Perth
Default Veneer bubbling- argh!

Last weekend I noticed that my left speaker has extensive veneer bubbling. The veneer was applied only 3 months ago using the "PVA wood glue on MDF and veneer-wait for both to dry-then iron on" technique. :-)

It must be due to the heat because every afternoon sunlight comes streaking through the glass sliding door into our living room and falls directly onto the outer surface and top of left speaker. At first I wasn't very concerned but now both these surfaces are have bubble extensively.

Does anyone has ideas of how to fix this? Ordinarily I'd just re-iron out the bubbles, but the problem is I've already oiled and waxed (Danish oil and fine paste wax) the speakers.

Please help!
  Reply With Quote
Old 27th June 2004, 06:41 AM   #2
ashok is offline ashok
diyAudio Member
ashok's Avatar
Join Date: Jun 2002
Location: 3RS
Veneer bubbling- argh!
Default Use a syringe.................

I have an idea that may work.
Get a syringe with a very thin needle. Take in some PVA glue ( if required thin it down with a bit of water if it is hard to expell it through the thin needle.
Better if you use quick set PVA glue ( wood glue) .
Poke the veneer carefully (along the grain) and inject a small quantity of glue. Then press the area very hard .. maybe some clamp ... and wait for a day for the glue to set.
This might work. Instant glue could work also I guess. Use pvc gloves to avoid any accidents and work FAST.

Just some ideas. I've never tried it myself.
  Reply With Quote
Old 27th June 2004, 02:30 PM   #3
BillFitzmaurice is offline BillFitzmaurice  United States
Join Date: May 2004
Location: New Hampshire
Default Move the speaker

Even if you fix the problem the source is likely de-gassing of the layer below the veneer. Trapped moisture below the veneer could also be the source. What it the box made of? If it's a composite material de-gassing could be a long term situation, and you may never be able to leave the speakers exposed to sunlight.

This points out a deficiency of using a water based glue for veneer; such problems are less common when a solvent base contact cement is used.
  Reply With Quote
Old 27th June 2004, 04:08 PM   #4
RobPhill33 is offline RobPhill33  Canada
diyAudio Member
Join Date: Sep 2002
Location: Milton Ontario
I have used contact cement and still got extensive bubbling. I will have to try the needle method.
  Reply With Quote


Veneer bubbling- argh!Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
ARGH! One channel failed ... where to start? paulspencer Chip Amps 1 23rd July 2007 12:44 PM
argh what site was this! neutron7 Everything Else 7 18th February 2007 07:13 AM
Argh!! phn Tubes / Valves 12 4th November 2006 02:23 PM
Argh Otherwise Everything Else 1 10th March 2004 07:28 PM
Veneer on veneer?? sam9 Multi-Way 5 1st August 2003 06:21 AM

New To Site? Need Help?

All times are GMT. The time now is 02:07 AM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio