Hey Doug, I looked up my BioShield citrus based thinner and it does indeed have d-Limonene (4-Isopropenyl-1-methylcyclohexene in it. I need to rethink my painting materials. A suspected liver and kidney toxicant is something that I wish -at all costs- to avoid!
I now believe that Bioshield is not touting its benefits as a low toxic solvent but because it is biodegradable when poured out in the back yard. Here is the MSDS on this product:
http://www.bioshieldpaint.com/24msds.htm I would like to find out the TLV/PPM....but don't know how to read it.
Gamsol does seem to have the highest TLV of any true solvent on the market: 300 PPM.
Does anyone know the TLV/PPM on SafeKlean? Is it considered a true solvent?
I am also looking into this product: # 125 NEUTRALTHIN (Eco-house.com). It is described as "...a practically odourless, general-purpose thinner, brush cleaner and volatile painting medium for oil-based paints and artist paints. This hypo-allergenic formula without essential oils has been used successfully for chemically sensitive persons for more than a decade. However, due to the individual uniqueness of allergic reactions, exceptions are possible..."
I have just written for a MSDS on this product also..