Ceramic Tile Advice Forums - John Bridge Ceramic Tile

Welcome to John Bridge / Tile Your World, the friendliest DIY Forum on the Internet


Advertiser Directory
JohnBridge.com Home
Buy John Bridge's Books

Go Back   Ceramic Tile Advice Forums - John Bridge Ceramic Tile > Tile & Stone Forums > Tile Forum/Advice Board

Sponsors


Reply
Thread Tools Search this Thread
Unread 12-31-2016, 10:21 AM   #1
argile tile
Registered User
 
Join Date: Dec 2016
Posts: 101
quick: latex mortar and mold - yes or no?

Does mold eat latex in latex-modified thinset in time? Will it turn tan with age?

Mold eats latex in time (ie, caulk or paint). If Latex Modified Mortar (white) (good bond strength) is used to whitewash a pitted old concrete wall, will I expect the whitewash will turn tan (eventually have mold eating the latex) and loose it's bond strength? Keep in mind it will be in a moist and dark environment with no airflow (because insulation will be blocking airflow to room, and moisture will be locked in, foam insulation).

((I just whitewashed a portion of a wall with "a good bond strength latex modified white mortar". Stuck real good (filled pinholes like mud) even where scraped thin. (the grey thinset test area: depends on depth). I'm wondering if I will now haven an eventual mold issue where the whitewash was done.))
__________________
Argile
argile tile is offline   Reply With Quote
Sponsored Links
Unread 12-31-2016, 11:10 AM   #2
argile tile
Registered User
 
Join Date: Dec 2016
Posts: 101
(the other possibility is: because white mortar may well have some/more lime and is bonded chemically close to the latex, the mold simply wont be able to get at the latex, chemically, lime eats mold per say)
__________________
Argile
argile tile is offline   Reply With Quote
Unread 12-31-2016, 11:25 AM   #3
jadnashua
Veteran DIYer- Schluterville Graduate

STAR Senior Contributor

 
Join Date: Jul 2004
Location: Nashua, NH
Posts: 13,329
One of the selling points of Schluter's Kerdi showers is that it is done with entirely inert and organic free materials. No outgassing, no organic materials (at least that are mold food!). Mold can form on it, but only after it has been contaminated with more suitable food.

Mold requires three things: food (latex is a food to mold - maybe not a great one, though), moisture, and the mold spores themself. The pH of cement helps to prevent mold, but not forever.
__________________
Jim DeBruycker
Not a pro, multiple Schluter Workshops (Schluterville and 2013 and 2014 at Schluter Headquarters), Mapei Training 2014, Laticrete Workshop 2014, Custom Building Products Workshop 2015, and Longtime Forum Participant.
jadnashua is offline   Reply With Quote
Reply

Stonetooling.com   Tile-Assn.com   National Gypsum Permabase


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
Impacts of latex mortar not drying before first use? jadnashua Professionals' Hangout 18 05-13-2014 04:30 PM
$6 bag of Mortar + $5 gallon latex paint =$20 modified mortar? rollandelliott Tile Forum/Advice Board 17 04-18-2010 06:10 PM
Forgot to add latex to mortar nickh Tile Forum/Advice Board 4 03-03-2005 12:38 AM
Mortar with latex or lime? Ketch Tile Forum/Advice Board 3 06-26-2004 04:16 PM
latex modified thinset mortar Erich Tile Forum/Advice Board 2 12-12-2001 06:38 AM


All times are GMT -6. The time now is 09:58 AM.


Sponsors

Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Copyright 2018 John Bridge & Associates, LLC