Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Painting

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 07-04-2008, 12:17 AM   #1
Member
 
Join Date: Jul 2008
Posts: 36
Rewards Points: 25
Default

Paint that sags


My exterior oil primer (SW A100) applied on 2 vertical redwood siding pieces has sagged in 3 places. It was brushed onto old redwood that was stripped of previous paint/primer, sanded, cleaned, etc.

Is sanding the proper way to remove the imperfection? Or, should paint stripper be used in the 3 areas?

Should I have rolled this primer? Should I have thinned the primer?

Thanks in advance for any suggestions.

TVC15 is offline   Reply With Quote
Old 07-04-2008, 01:19 AM   #2
Member
 
Join Date: Jun 2008
Posts: 1,264
Rewards Points: 500
Default

Paint that sags


I would just scrape off those sagged areas with a sharp paint scraper and repaint.

Thinning your paint is good practice in my books because it BOTH lowers the viscosity of the paint so that it self levels faster and dilutes the paint so that it takes more time for the thinners to evaporate, thereby creating better conditions for the paint to self level on horizontal surfaces so that you don't see any brush strokes.

The problem is that by thinning latex or oil based paints, you also create better conditions for the paint to sag as it dries on vertical surfaces.

I've been told that using a paint conditioner like the Flood Company's "Penetrol" for oil based paints and "Floetrol" for latex paints thins the paint without lowering it's viscosity, so that you prevent sagging in the paint on vertical surfaces. However, I've never tried either product when painting vertical surfaces to see if it works that way. If you try it, and it doesn't work, then keep thinning your paint, but apply thinner coats to eliminate sagging.

Nestor_Kelebay is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
Dark over light...Do I need tinted primer? melissaandkris Painting 17 09-09-2011 11:43 AM
Painting a garage door dfoxworthy Painting 6 06-22-2008 11:51 PM
Dark to light/neutral couchguy Painting 3 06-20-2008 01:07 AM
Paint coming off of siding ciera Painting 5 07-01-2007 06:22 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.