Crossover potting - diyAudio
Go Back   Home > Forums > Design & Build > Equipment & Tools

Equipment & Tools From test equipment to hand tools

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
Reply
 
Thread Tools Search this Thread
Old 7th April 2013, 12:01 AM   #1
diyAudio Member
 
Join Date: Jan 2004
Location: Toronto, ON, Canada
Default Crossover potting

The electronics-grade RTV silicones are too $$$ for me. If I use a standard acetic acid- or ammonia-cured silicone caulk (GE I or GE II, respectively), would I be hurting my MOX resistors, plastic-wrapped caps, or magnet wire?
  Reply With Quote
Old 8th April 2013, 09:59 PM   #2
diyAudio Member
 
Join Date: Jan 2004
Location: Toronto, ON, Canada
Anyone? I would rather not have to deal with a mess of hot glue.
  Reply With Quote
Old 13th April 2013, 05:45 PM   #3
PChi is offline PChi  United Kingdom
diyAudio Member
 
Join Date: Jan 2012
Location: Staines, UK
I stuck my Crossover components down to a PCB using the standard DIY clear silicone sealant which I think was the acetic acid type stuff and 15 years later no problems. I didn't ecapsulate them I just stuck all the compoents down to prevent rattles.
The Crossover components were from Falcon Acoustics and used Polypropylene Capacitors. The inductors were just the standard rather crude ferrite rods wound with wire that self sticks together with heat I guess. From memory the resistors were just ceramic bodied.
  Reply With Quote
Old 13th April 2013, 05:52 PM   #4
diyAudio Member
 
Join Date: Feb 2008
Location: Niederösterreich
FWIW I have used paraffin wax with quite some success... A small bonus is that if things go sideways or if you just want to switch out a component in the future all you need is heat.

I have seen the acetic acid based silicones turn copper coils GREEN over time.
  Reply With Quote
Old 13th April 2013, 07:01 PM   #5
PChi is offline PChi  United Kingdom
diyAudio Member
 
Join Date: Jan 2012
Location: Staines, UK
I took the drive units out so I could see the crossover. The components have been stuck to the PCB with silicone sealant though it isn't obvious on the picture attached.
The silicone sealant isn't really in contact with the lead out wires so corrosion hasn't been a problem.
Attached Images
File Type: jpg Loudspeaker Crossover.JPG (160.0 KB, 24 views)
  Reply With Quote

Reply


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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Toroidal transformer potting can jamesjung21 Tubes / Valves 13 20th February 2008 01:04 PM
Potting and sheilding transformers pjpoes Parts 1 8th March 2005 08:58 PM
neophyte - transformer potting ofb Tubes / Valves 13 13th December 2004 10:03 AM
Old Tranny Potting Material audiopro Tubes / Valves 6 8th June 2004 11:27 AM
Potting transformers Original Burnedfingers Tubes / Valves 7 27th November 2002 12:07 PM


New To Site? Need Help?

All times are GMT. The time now is 04:01 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright ©1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2