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-   -   Latex paint addative (http://www.houserepairtalk.com/f107/latex-paint-addative-16848/)

TomtheElder 04-09-2012 11:24 PM

Latex paint addative
 
The problem is likely the paint. My wife bought Clark+Kensington for the walls and Royal Interiors for trim (both by Ace Hardware, semi-gloss). Both, but particularly the Royal Interiors, show very heavy brush marks using Purdy brushes. I have done a ton of painting and normally do not have this problem. Next time I will buy better paint. For this time, does anyone have an opinion about adding Floetrol to smooth out the paint? Any other additives or alternatives? Thanks.

Tom

Austin 04-10-2012 10:27 AM

Do you have any pics?

A brush was used to apply? Did you try a roller?

imported_Workaholic 04-17-2012 12:27 PM

I am unfamiliar with that brand of paint but yes extenders help a good bit with your problem and for me being in the south they are often needed in the summer.

Floetrol is alright, XIM Extender is better imo and sometimes just a little bit of water does the trick.

billhead1 06-09-2012 08:17 PM

For smoothest finish on interior walls with latex paints, try the Purdy Nylox brush. It's the softest bristle Purdy makes for latex paints, therefore it leaves the fewest brush marks, but it will wear quickly on rough surfaces or with the new alkyd paints. I agree with Workaholic that XIM's extender is superior to Floetrol.

For exterior surfaces I typically use about 4 ounces/gallon of latex and 6 ounces/gallon for DTM (direct to metal) acrylic latex paints for substrate temperatures above 75 degrees F or when I get caught in direct sunlight before I can finish an exterior surface. It provides a longer "open window time" for properly spreading the paint, which makes it easier to maintain a wet edge.

If you are using one of the new alkyd paints, check with your paint supplier for an extender specially made for this type of paint. A specialty paint supplier is highly recommended over the big box stores for this type paint and extender.

If the paint has been previously used and left open while painting or stored for a while, it may be necessary to add an extender to compensate for evaporation of some of the active components in the paint (resins + moisture).

Always pour the estimated amount of paint you will need into a separate "cut can" for painting and never pour any remaining paint back in its original container after the job or you will contaminate it with dust, debris, and dried paint from the substrate or the cut can. Transfer any excess paint to a clean container and label it with the room, the brand, and the formulation information in case you should require more in the future.

chrisn 06-10-2012 03:08 AM

Quote:

Originally Posted by Sand&Scrape (Post 1094)
For smoothest finish on interior walls with latex paints, try the Purdy Nylox brush. It's the softest bristle Purdy makes for latex paints, therefore it leaves the fewest brush marks, but it will wear quickly on rough surfaces or with the new alkyd paints. I agree with Workaholic that XIM's extender is superior to Floetrol.

For exterior surfaces I typically use about 4 ounces/gallon of latex and 6 ounces/gallon for DTM (direct to metal) acrylic latex paints for substrate temperatures above 75 degrees F or when I get caught in direct sunlight before I can finish an exterior surface. It provides a longer "open window time" for properly spreading the paint, which makes it easier to maintain a wet edge.

If you are using one of the new alkyd paints, check with your paint supplier for an extender specially made for this type of paint. A specialty paint supplier is highly recommended over the big box stores for this type paint and extender.

If the paint has been previously used and left open while painting or stored for a while, it may be necessary to add an extender to compensate for evaporation of some of the active components in the paint (resins + moisture).

Always pour the estimated amount of paint you will need into a separate "cut can" for painting and never pour any remaining paint back in its original container after the job or you will contaminate it with dust, debris, and dried paint from the substrate or the cut can. Transfer any excess paint to a clean container and label it with the room, the brand, and the formulation information in case you should require more in the future.



are you meaning waterborne?

billhead1 08-14-2012 08:32 PM

I like XIM's latex extender much better than Flood's Floetrol. I talked with the local Benjamin Moore manager at one location, who has many years of experience and her husband is a paint contractor. She stated that the Floetrol had tendency to yellow over time with lighter colors and also expressed her preference for XIM's latex extender.


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