Caulking Copper - Construction - Contractor Talk

Caulking Copper

 
Thread Tools Search this Thread Display Modes
Old 09-13-2018, 03:42 PM   #1
Pro
 
Lettusbee's Avatar
 
Trade: General Contractor
Join Date: May 2010
Location: Ft Collins, CO
Posts: 2,139
Rewards Points: 2,898

Caulking Copper


I caulked a hose bib penetration with clear big stretch last year. Took it apart today and the clear big stretch is a beautiful aquamarine.

Something tells me that caulking isn't good for the copper.

What do you recommend for caulking copper penetrations through the wall?

Sent from my SM-G950U using Tapatalk
Lettusbee is online now  

Warning: The topics covered on this site include activities in which there exists the potential for serious injury or death. ContractorTalk.com DOES NOT guarantee the accuracy or completeness of any information contained on this site. Always use proper safety precaution and reference reliable outside sources before attempting any construction or remodeling task!

   

Advertisement

 

Old 09-13-2018, 04:53 PM   #2
Fire up the BBQ
 
griz's Avatar
 
Trade: GC
Join Date: Nov 2009
Location: CA
Posts: 20,365
Rewards Points: 3,282

Re: Caulking Copper


i've seen 100% silicone spec'd out as caulk for copper.

i wouldn't be too alarmed at seeing that color as copper will do that on it's own if left exposed. usually why copper is called out to get that patina. fancy name for it is verdigris.

Advertisement

__________________
SOME JOBS JUST AREN'T WORTH DOING:
griz is offline  
The Following User Says Thank You to griz For This Useful Post:
Lettusbee (09-13-2018)
Old 09-13-2018, 06:30 PM   #3
Pro
 
Lettusbee's Avatar
 
Trade: General Contractor
Join Date: May 2010
Location: Ft Collins, CO
Posts: 2,139
Rewards Points: 2,898

Re: Caulking Copper


Cleaned the caulking off the copper and it looks just fine, so your likely spot on. Just in this case it's the caulking that gets the verdigris.

I remember warnings from AAMA classes and JLC articles about certain caulks/sealants not reacting well with some metals.

Since I never work with coil stock or copper, I can't keep the rules straight in my head.
Lettusbee is online now  
Old 09-13-2018, 08:19 PM   #4
Renaissance Man
 
superseal's Avatar
 
Trade: Masonry, Carpentry and everything else.
Join Date: Feb 2009
Location: Southeastern PA
Posts: 6,706
Rewards Points: 5,598

Re: Caulking Copper


I always use Quad in bronze...in no time the patina brings them together...Typical for me is up against brick/copper and high up but the match is good once the copper browns out, no discoloration and it's a tenacious, long lasting seal.
Attached Thumbnails
Caulking copper-burns-project-444.jpg   Caulking copper-img_2690a.jpg   Caulking copper-burns-project-460.jpg  
__________________
"Under promise, over deliver and all that!" JBM
supersealconstruction.com

https://www.facebook.com/Superseal-C...2699413750013/
superseal is offline  
The Following 2 Users Say Thank You to superseal For This Useful Post:
Lettusbee (09-13-2018), Rio (09-14-2018)


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

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
Copper Pipe Bender Smokin Plumbing 21 12-07-2014 11:57 PM
Copper roofing Trimac Roofing 6 07-07-2014 02:17 PM
Pinhole leaks in copper pipe FStephenMasek Plumbing 16 11-08-2012 07:59 AM
Copper Industry Launches New DIY Architectural and Plumbing Videos Grumpy Roofing 0 06-03-2011 09:32 AM
Bending copper Morning Wood General Discussion 9 11-01-2010 08:17 AM

Join Now... It's Fast and FREE!

I am a professional contractor
I am a DIY Homeowner
Drywall Talk is for
PROFESSIONAL CONTRACTORS ONLY!

At DrywallTalk.com we cater exlusivly to professional contractors who make their living as a contractor. Knowing that many homeowners and DIYers are looking for a community to call home, we've created www.DIYChatroom.com DIY Chatroom is full of helpful advices and perfect for DIY homeowners.

Redirecing in 10 seconds
No Thanks
terms of service

Already Have an Account?