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

Epoxy or PVA
Epoxy or PVA
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 4th February 2006, 05:07 AM   #1
Mos Fetish is offline Mos Fetish  New Zealand
diyAudio Member
Join Date: Feb 2003
Location: New Zealand
Default Epoxy or PVA


Anyone got any thoughts or experiences with attching a baffle using epoxy or PVA? I'm lacquering and looking for the best union possible. Any advantage to using epoxy over yellow high-bond PVA?

  Reply With Quote
Old 4th February 2006, 11:52 AM   #2
Bobken is offline Bobken  United Kingdom
diyAudio Member
Join Date: Dec 2002
Location: UK

If the baffle and box are both made of wood (natural, or compressed derivatives) I reckon you will do better with PVA.

This tends to soak into the wood (being water-based) better than most other adhesives like epoxy etc.

The advantages I see here are that the glue line between the two parts will be much thinner as most of the 'substance' of the glue will have sunk into the wood, and there will be a more intimate contact between the two parts.

With epoxy, I think the joint will also be a little more 'flexible', as there will ultimately be a thin plastic membrane (effectively) between the joined parts when the glue has set.

However, if the fit of the parts is not very good, and some gap-filling is needed, epoxy may well be the better choice as PVA does not bridge gaps so well and the joint can end up 'starved' when the glue fully dries out.

PVA actually 'dries out' partly by evaporation and soaking into the substrate, but epoxy remains 'substantially' much the same as when the glue is applied and the joint is put together, and epoxy hardens merely by a chemical reaction.

I hope this helps.

  Reply With Quote
Old 4th February 2006, 11:57 PM   #3
Mos Fetish is offline Mos Fetish  New Zealand
diyAudio Member
Join Date: Feb 2003
Location: New Zealand
Bob, my thoughts exactly. If epoxy gives me a non-shrinking or less problematic joint then that's what I should go for. I used epoxy to fix my port in MDF but that's becuase I was gluing plastic which isn't absorbent.

Big advantage to PVA is it's easier to work with, clean up, etc.

  Reply With Quote


Epoxy or PVAHide 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
Epoxy covered crossover?? Ryder Multi-Way 10 24th August 2010 01:06 AM
Coloring Epoxy? Zero Cool Everything Else 4 25th December 2006 10:25 PM
Anodized Aluminum and Glue/Epoxy Bryan Tubes / Valves 22 19th May 2004 12:24 AM
Debond epoxy Pbassred Solid State 6 7th April 2004 05:38 AM
Epoxy + sand for speakers? mulebarn Multi-Way 13 26th February 2004 05:29 AM

New To Site? Need Help?

All times are GMT. The time now is 06:34 AM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 16.67%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright ©1999-2017 diyAudio