Seeking advice from any chemists, bottom paint related

Sailor Sue

Sailor Sue

.
Nov 12, 2009
274
J/ 32 NCYC, Western Lake Erie
We're in the process of applying new SN-1 ePaint over existing SN-1. The roller was lifting the old ePaint so badly that we switched to using a brush. Brushing does not lift the original layer but the new paint is so thick, and it was so warm on Sunday, that the paint was not flowing or leveling.

Their web site SDS says the appropriate thinner is aromatic and aliphatic hydrocarbon. Any suggestions as to what would work as a generic thinner?

I've been trying to reach epaint the last 2 days to find out about their thinners to no avail. I'm not too excited about waiting any longer to maybe hear back from ePaint, and then waiting another 2 or 3 days for their thinner to arrive since I only need to thin about a quart of their paint.

Thanks for any insight or advice.
 
Justin_NSA

Justin_NSA

.
Jul 7, 2004
8,496
Hunter 30T Cheney, KS
If it's lifting the old paint you may have an incompatible paint layer underneath that layer. That would suck.
 
thinwater

thinwater

.
Mar 26, 2011
3,747
Corsair F-24 MK I Deale, MD
Call e-paint. They have some weird compatibility and adhesion characteristics (I have used it).
 
JamesG161

JamesG161

SBO Weather and Forecasting Forum Jim & John
Feb 14, 2014
7,806
Hunter 430 Waveland, MS
kloudie1 said:
Mineral spirits
Click to expand
:plus::plus:

Add small paint amount into a container and add Mineral Spirts[MS] ounce by ounce , mixing with a small brush.
Keep track of the Volumes of Paint to MS ratio.
Once you know your thinning ratio, Mix larger volume and paint.
Jim...

PS: I would test a small area and let dry overnight. See if it does the expected job.
 
  • Like
Likes: dLj and kloudie1
Sailor Sue

Sailor Sue

.
Nov 12, 2009
274
J/ 32 NCYC, Western Lake Erie
JamesG161 said:
:plus::plus:

Add small paint amount into a container and add Mineral Spirts[MS] ounce by ounce , mixing with a small brush.
Keep track of the Volumes of Paint to MS ratio.
Once you know your thinning ratio, Mix larger volume and paint.
Jim...

PS: I would test a small area and let dry overnight. See if it does the expected job.
Click to expand
Sounds like the best suggestion so far, especially since the ePaint rep I've been trying to call hasn't answered the phone in 3 days. Thanks.
 
JamesG161

JamesG161

SBO Weather and Forecasting Forum Jim & John
Feb 14, 2014
7,806
Hunter 430 Waveland, MS
Sailor Sue said:
thinner is aromatic and aliphatic hydrocarbon
Click to expand
Per @sail sfbay post info

aromatic = Xylene. [not fun stuff and hard to find]
aliphatic hydrocarbon = Mineral Spirts [ not too toxic, but flammable and available]

But the ratio of their mix is unknown.

Thus finding the right mix of MS Thinner to Paint, that fits your applicator tool and outside Temperature.

Lets us know how your painting turns out.
Jim...
 
Sailor Sue

Sailor Sue

.
Nov 12, 2009
274
J/ 32 NCYC, Western Lake Erie
fstbttms said:
I wouldn't wish ePaint on an enemy. Hope this works out.
Click to expand
Since we started using ePaint we have had virtually no growth on the bottom, and have not had the bottom power washed when we haul out in the fall. Adhesion is the big issue! I think everyone at our club that has tried ePaint has had problems getting it to stay on, some adhesion problems much worse than others.

We have been willing to live with the small area failures in the past because the bottom comes out almost as clean in the fall as it went in in the spring. We're hoping that maybe thinning the paint and brushing it on might alleviate some of the application issues we're having this spring.
 
fstbttms

fstbttms

.
Feb 26, 2011
1,440
Achilles SD-130 Alameda, CA
Sailor Sue said:
I think everyone at our club that has tried ePaint has had problems getting it to stay on, some adhesion problems much worse than others.
Click to expand
This sounds like a real good reason not to use it. Wondering why you did.
 
JamesG161

JamesG161

SBO Weather and Forecasting Forum Jim & John
Feb 14, 2014
7,806
Hunter 430 Waveland, MS
fstbttms said:
Wondering why you did.
Click to expand
My guess it is called E-Paint as E = Environmental Friendly in Fresh water Lake Erie.

But that issue of adhesion is not E friendly, as it takes Ablative paint idea to an extreme by dropping the paint scale into Lake Erie.

Best of Luck @Sailor Sue
Jim...
 
  • Like
Likes: Will Gilmore
Sailor Sue

Sailor Sue

.
Nov 12, 2009
274
J/ 32 NCYC, Western Lake Erie
JamesG161 said:
My guess it is called E-Paint as E = Environmental Friendly in Fresh water Lake Erie.

But that issue of adhesion is not E friendly, as it takes Ablative paint idea to an extreme by dropping the paint scale into Lake Erie.

Best of Luck @Sailor Sue
Jim...
Click to expand
Jim, I finally heard back from ePaint. Xylene will work as a thinner, but will probably flash off a bit quicker than their proprietary thinner. Now to do a little sample test. Thanks again.
 
JamesG161

JamesG161

SBO Weather and Forecasting Forum Jim & John
Feb 14, 2014
7,806
Hunter 430 Waveland, MS
Sailor Sue said:
will probably flash off a bit quicker [Xylene]
Click to expand
And it is like, Benzene, a known carcinogen.

Also aromatic means "Flash off" . Think of Aroma of perfumes that "Flashes off" from skin absorption.

I strongly urge, for your Safety, use Mineral Spirts. Xylene is extremely flammable and you need a respirator to use it.

Jim...

PS: I am a Chemical Engineer with a Major in Chemistry.
 
rgranger

rgranger

.
Jan 19, 2010
12,615
Hobie 16 & Rhodes 22 Skeeter Charleston
JamesG161 said:
And it is like, Benzene, a known carcinogen.

Also aromatic means "Flash off" . Think of Aroma of perfumes that "Flashes off" from skin absorption.

I strongly urge, for your Safety, use Mineral Spirts. Xylene is extremely flammable and you need a respirator to use it.

Jim...

PS: I am a Chemical Engineer with a Major in Chemistry.
Click to expand
:plus:

And I am a Ph.D. chemist. Also you opened with ..
Sailor Sue said:
Their web site SDS says the appropriate thinner is aromatic and aliphatic hydrocarbon.
Click to expand
Those are kind of on opposites ends of the hydrocarbon scale. Aromatics have benzene rings ... aliphatic are straight chain... Gasoline is an example of a mixture of the two...

I'm going to guess hexane will work but honestly any organic solvent that seems to thin will probably work. Mineral spirits (from Lowes) is the safest. Be mindful of the flashpoints (spontaneous combustion) of the solvents you are using. Mineral spirits is 100F. Xylene is ~90F. Both are high enough that if you work with small amounts in a well ventalated space you are probably safe from the on looker who lights up a smoke.

You could do a small test with some commercail paint thinner. They sell this at Lowes. I'm going to guess it is made in the same factory as your epaint thinner.

1651082948969.png
 
  • Helpful
Likes: Will Gilmore
Sailor Sue

Sailor Sue

.
Nov 12, 2009
274
J/ 32 NCYC, Western Lake Erie
Thanks to JamesG and rgranger - that is the kind of information I was hoping for. Tomorrow, based on your responses, I will try thinning a small amount of paint with mineral spirits. If that doesn't work I'll try a bit of xylene.
 
You must log in or register to reply here.

Top Bottom