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Old 01-05-2012, 08:28 PM   #16
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How toxic is paint in the soil? (I have a vegegarden)


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Originally Posted by Windows View Post
Look at the MSDS for Zar Ultramax. http://www.ugl.com/zarWoodFinishing/...arUltraMax.php
It is 60% water by volume. 30% is the acrylic resin and the remaining 10% are the various dryers, binders, extenders and whatever else is needed to make the paint work.

This EDS from Sherwin Williams
http://www.sherwin-williams.com/docu.../035777440223/
indicates that just 1.7% by volume of a can of water borne Duration is made up of volatile organics.

My personal thought is that it is not a big deal to clean brushes on lawns. I would rather let the ground do the filtering than use up capacity at the treatment center. 15 feet from the veggie garden though... I might be ok with that, but certainly no closer, and certainly not more than a a couple of times.

People routinely dump herbicides, pesticides, and petrochemical fertilizers on their lawns and in their gardens, many of which are extremely toxic to humans, and hardly anyone thinks twice about that.
You're right about that windows. But you're wrong to say that no one thinks about it. There's a dead zone in the Gulf of Mexico from all those farm chemicals that wash out of the midwest into the Mississippi River and deposit in the Gulf. I would say that with the zeal that government is going after that kind of stuff, that someone in Washington D.C. is thinking about it as well. Uncle Regulator will be dealing with that in due time. VOC's and painters were just next on the list.

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Old 01-05-2012, 10:24 PM   #17
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How toxic is paint in the soil? (I have a vegegarden)


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Originally Posted by Brushjockey View Post
Ok Ric, I haven't walked into the workroom to read a can, any can- but let me throw a couple that i think are suspect in low water- high resin and other assorted weirdness-
Gardz.
Zar Ultramax
( ok - these aren't latex PAINTs, but they are waterborne finishes or primers..)
hmm...
What are acrylic resins? water? When a paint has high solid contents- is that like 5% ?
When I have had some very old paint cans totally dry out to the point that it is just a lump of hard stuff and even pulled away from the sides of the can- I would say in volume there is 1/2-2/3 the total volume left. And non of that is water.

And the subject of cleaning equipment came up a bit ago in a different thread- I think it was about what was safe for a septic system- and I was amazed at the amount of professional painters that regularly clean out in the yard with a hose.
Maybe its because i'm from an urban area and I would fire myself if i turned the lawn white, but it seems like a pretty un-pro practice.
But the health issue is different than the professionalism.
I stand aside for the more chemically inclined!
Hiya BrushJockey...

I can't say I'm all that familiar with Gardz, and I'm really just too lazy to research it, but Zar UltraMax is a water-borne, oil modified, urethane coating (which happens to be an acrylic urethane)...This particular product is an actual oil based product, borne in water (water thinned, water clean up) - sufficiently confused yet? No? Well, then in answer to your other question "what are acrylic resins?" - Acrylics may be either water-borne or solvent-borne. House & Wall paints are obvious examples of water-borne acrylics, while many concrete stains, automotive finishes, and some industrial finishes are examples of solvent-borne acrylics....

If I understood your other comment about dried contents in a can, paint components are measured by two different means - specific component by volume, or specific component by weight. When you see the dried remains of paint in a can, you see volume. When you speak of Dry Film Thickness, you're describing volume measurement (example: a 50% solids product applied at 4 mils wet produce a dry film thickness of 2 mils...a 25% solids product applied at 4 mils wet will yield 1 mil DFT and so on...) - BUT - when compared to a specific component by weight, it's often times a completely different result. If you see the remains of hardened paint in a can, you're essentially looking at a DFT...but at 50% solids, shouldn't the can be only 1/2 full instead of 2/3 full? (your example) - When measuring by weight (and this is all theoretical, of course) what remains dried in the can of a 50% solids product, is equal, in weight, to the solvent that once occupied the other 1/3 of that can...

Still awake? Sorry, I bore the sh#t out of myself at times, too. Anyway, we've gotten a tad bit away from topic here, and poor htabbas was just simply wondering if his green peppers were gonna have a slight latex taste to 'em. You're OK, ht...no problems.

Last edited by ric knows paint; 01-05-2012 at 10:39 PM.
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Old 01-06-2012, 04:56 AM   #18
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How toxic is paint in the soil? (I have a vegegarden)


Lets just say that washing brushes out in the lawn is just wrong and move on.
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Old 01-06-2012, 06:05 AM   #19
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How toxic is paint in the soil? (I have a vegegarden)


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Old 01-06-2012, 02:50 PM   #20
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How toxic is paint in the soil? (I have a vegegarden)


We all should be less casual about where we clean brushes and things. And even the best of soil has only so much ability to deal with things that are alien and do not belong. And things added tend to get leached rather than filtered.

Will washing out latex paint in the back yard hurt you? I doubt it. Every state in this country has a State level EPA or waste authority. Call and ask them to be sure.

Professionally, I think it is totally tacky for a pro to work this way and would never do it on a client site.

Last edited by user1007; 01-06-2012 at 02:56 PM.
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Old 01-06-2012, 05:10 PM   #21
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How toxic is paint in the soil? (I have a vegegarden)


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We all should be less casual about where we clean brushes and things. And even the best of soil has only so much ability to deal with things that are alien and do not belong. And things added tend to get leached rather than filtered.

Will washing out latex paint in the back yard hurt you? I doubt it. Every state in this country has a State level EPA or waste authority. Call and ask them to be sure.

Professionally, I think it is totally tacky for a pro to work this way and would never do it on a client site.
I don't even use a clients sink to wash brushes, they go home with me.
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Old 01-06-2012, 05:56 PM   #22
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How toxic is paint in the soil? (I have a vegegarden)


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I don't even use a clients sink to wash brushes, they go home with me.
Nice bubba!

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