Bleaching Oil Mold Return - Paint Talk - Professional Painting Contractors Forum
Go Back   Paint Talk - Professional Painting Contractors Forum > Painting Forum > General Painting Discussion

Thread Tools Display Modes
Old 09-25-2017, 10:24 AM   #1
KEEGS's Avatar
Join Date: Nov 2009
Location: Connecticut
Posts: 96
Rewards Points: 97
Thanks: 59
Thanked 49 Times in 23 Posts
View KEEGS's Photo Album My Photos
Default Bleaching Oil Mold Return

Short and sweet-After a thorough cleaning/bleaching of our beach house project we re-applied a light coat of Cabot’s Bleaching oil to the cedar shakes that had been previously treated with the same product approximately 7 years prior. Mold re-appeared within 6 months and has continued to do so even after subsequent light bleach washes. Anyone with any experience or information please feel free to drop your thoughts here... also-a suggestion was made to wash and re-coat with bleaching oil treated with mildicide additives? I’m thinking more along the lines of suggesting some solid acrylic stain at this point. Graciás. #HateBleachingOil
KEEGS is offline   Reply With Quote

Warning: The topics covered on this site include activities in which there exists the potential for serious injury or death. 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!

Sponsored Links
Old 09-25-2017, 10:54 AM   #2
Senior Member
PACman's Avatar
Join Date: Oct 2014
Location: North central Ohio
Posts: 11,323
Rewards Points: 128
Thanks: 2,999
Thanked 4,709 Times in 3,176 Posts
View PACman's Photo Album My Photos

Bleach only removes the mildew/mold stain, it doesn't kill the roots of the mildew/mold. Find a product that specifically says that it will kill mildew and prevent it from coming back. That's where you need to start. Also any oil based or alkyd product is essentially a mildew buffet, so stop feeding the mildew that you haven't actually killed yet.
"One who dares not offend cannot be honest." Thomas Paine-patriot

"I'll have a double scotch with a twist of bourbon" Rodney Dangerfield
PACman is offline   Reply With Quote
The Following User Says Thank You to PACman For This Useful Post:
futtyos (09-25-2017)
Old 09-25-2017, 05:44 PM   #3
Senior Member
Join Date: Sep 2013
Location: Seattle, WA
Posts: 1,252
Rewards Points: 199
Thanks: 85
Thanked 407 Times in 306 Posts
View PNW Painter's Photo Album My Photos

Although Bleach doesn't kill mold, I use bleach in my house wash mix. I've never had an issue with mold or it reappearing before, but if there was a heavy amount of mold I could use a stronger concentration of bleach in that spot or use a product such as Concrobium to kill the mold before I wash the house.

I'd also guess that it's much harder to kill/remove mold from rough cedar shakes compared to a more typical painted surface.

I've also heard that some Alkyd stains contain ingredients that can become food for mold. A long time ago a painting contractor mentioned an issue they had with a mold bloom and Penofin.

Sent from my iPhone using Tapatalk
PNW Painter is offline   Reply With Quote
Sponsored Links
Old 09-25-2017, 06:09 PM   #4
Senior Member
lilpaintchic's Avatar
Join Date: Jul 2014
Location: Blue Marble, Earth
Posts: 4,010
Rewards Points: 5,006
Thanks: 3,702
Thanked 1,897 Times in 1,217 Posts
View lilpaintchic's Photo Album My Photos

lilpaintchic is offline   Reply With Quote
Old 09-25-2017, 06:52 PM   #5
Senior Member
Woodco's Avatar
Join Date: Nov 2016
Location: Austin Texas
Posts: 2,625
Rewards Points: 5,252
Thanks: 20
Thanked 414 Times in 348 Posts
View Woodco's Photo Album My Photos

Vinegar supposedly gets deep within the pores to kill the mold at its roots, while bleach only kills the surface mold. This has been debated to death, though. Spray vinegar on, and leave it for an hour, then wash.
Woodco is offline   Reply With Quote
Old 09-25-2017, 09:27 PM   #6
Senior Member
Delta Painting's Avatar
Join Date: Apr 2010
Location: Michigan
Posts: 1,529
Rewards Points: 190
Thanks: 4,501
Thanked 737 Times in 523 Posts
View Delta Painting's Photo Album My Photos


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Delta Painting is online now   Reply With Quote


Thread Tools
Display Modes

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
Moldy basement with senior citizen. 007 Dave Surface Preparation and Application 29 06-29-2017 09:18 PM
Mold on overhang 007 Dave General Painting Discussion 20 08-25-2016 01:37 PM
Bleaching Oil Re-Coating KEEGS General Painting Discussion 3 06-24-2016 12:32 PM
cleaning mold off siding jacob33 Surface Preparation and Application 19 03-17-2016 09:41 AM
Mold inhibiting paint daArch Specialty Coatings 20 11-20-2015 09:46 PM

All times are GMT -4. The time now is 11:18 AM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.1
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Our Pro Sites Network | | | | |