Determining If Latex Or Oil Base Paint

 
Thread Tools Search this Thread Display Modes
Old 07-29-2007, 05:44 PM   #1
Member
 
gary lee's Avatar
 
Trade: painting contractor
Join Date: Feb 2007
Posts: 93
Rewards Points: 75

Determining If Latex Or Oil Base Paint


Does anybody have a surefire way of knowing if there is oil base paint or latex on a substrate? Usually I can tell by the way the paint has layed down if it is oil or latex. Another way I have used to determine if it is oil or latex is by rubbing it with denatured alcohol (latex will remove), but do not have total confidence in this test. Thanks for the feedback.

Gary
gary lee is offline  

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!

   
 

Old 07-29-2007, 05:59 PM   #2
Home Improvement Guy
 
ron schenker's Avatar
 
Trade: Renovations contractor
Join Date: Dec 2005
Location: toronto,Canada
Posts: 1,480
Rewards Points: 500

Re: Determining If Latex Or Oil Base Paint


I trust goof off more than denatured alcohol. I don't know why, maybe I'm a goof

__________________
It doesn't have to be perfect, it's just a closet!
ron schenker is offline  
Old 07-29-2007, 07:20 PM   #3
Pro
 
BMAN's Avatar
 
Trade: Painting & Remodeling
Join Date: Aug 2006
Location: Rochester, NY
Posts: 468
Rewards Points: 250

Re: Determining If Latex Or Oil Base Paint


Latex and Oil taste different to me.
BMAN is offline  
Old 07-29-2007, 07:32 PM   #4
turning houses into homes
 
daArch's Avatar
 
Trade: Wallcovering Installation
Join Date: Jun 2007
Location: Norfolk, MA
Posts: 1,261

Re: Determining If Latex Or Oil Base Paint


I always used the alcohol test, but then I met up with some latexes that did not "dissolve" with alcohol.

This, I copied from an Internet source (hey, if it's written, it must be fact ):
"To test you can use methyl hydrate (gas line anti-freeze) or non acetone based nail polish remover.

Apply a small quantity to a pad and rub vigorously on the painted surface. If the surface remains shiny it is oil/alkyd; if the paint is stripped it is latex."
daArch is offline  
Old 07-30-2007, 09:41 PM   #5
...jammin
 
slickshift's Avatar
 
Trade: Rock Disciple
Join Date: Jun 2005
Location: Cape Cod, Massachusetts
Posts: 5,234
Rewards Points: 2,000

Re: Determining If Latex Or Oil Base Paint


I do the Goof Off! if I'm unsure

There is an alcohol test I like also
Get drunk enough and you don't care what the substrate is
__________________
Signature Quote
Quote:
Originally Posted by ModernStyle
I have never used this crap before and I pray to the paint gods that I never have to use it again, I would rather use Behr
slickshift is offline  
Old 07-30-2007, 09:45 PM   #6
Back from the dead...
 
ProWallGuy's Avatar
 
Trade: Paperhanger/Painter
Join Date: Oct 2003
Location: St. Louis, MO
Posts: 6,642
Rewards Points: 2,504

Re: Determining If Latex Or Oil Base Paint


Quote:
Originally Posted by slickshift View Post

There is an alcohol test I like also
Get drunk enough and you don't care what the substrate is
That is my style also.
ProWallGuy is offline  
Old 07-31-2007, 12:02 AM   #7
Paint Pro/Faux Artisan
 
Da Vinci's Avatar
 
Trade: Painting Contractor/Faux Finisher
Join Date: Jun 2007
Location: Bay Area - Northern CA, USA
Posts: 187
Rewards Points: 150

Re: Determining If Latex Or Oil Base Paint


Quote:
Originally Posted by slickshift View Post
I do the Goof Off! if I'm unsure

There is an alcohol test I like also
Get drunk enough and you don't care what the substrate is
Use Isopropyl alcohol on a rag. If it's latex it will soften and come off on the rag- oil will not. I've used this successfully about 98% of the time.

Bay Area Painting Company

Da Vinci is offline  


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
why is latex paint peeling?? Zeebo Painting & Finish Work 24 05-28-2009 06:59 AM
latex semi gloss over oil semi gloss - can it be done? Zeebo Painting & Finish Work 13 09-05-2007 05:38 PM
Proposals...... AAPaint Painting & Finish Work 3 08-25-2007 08:47 AM
SW Latex Paint taking long to dry plazaman Painting & Finish Work 9 08-10-2007 07:20 PM
best way to tell if the wall has oil or latex paint?? Zeebo Painting & Finish Work 7 11-10-2005 06:03 PM

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?