> Mark; Products are related, and probably there is some terminology cross-over. If you look at some techincal data that gives recommendations for protective wear, such as http://www.ehs.cornell.edu/lrs/chp/11.glove.table.PDF, it calls up 'polyvinyl acetate' gloves for use with MC. Other places refer to 'polyvinyl alcohol'. I have always equated the gloves with 'acetate', and 'alcohol' with the parting agent used when I had to release a complex part, or break in a new mold. The glove type that you reference is the correct type. POLYVINYL ALCOHOL A water-soluble polymer made by hydrolysis of a polyvinyl ester (such as polyvinyl acetate); used in adhesives, as textile and paper, and for emulsifying, suspending, and thickening of solutions. Abbreviated PVA. I have used literally hundreds of tons of MC over the years in industry, including setting up distillation recovery systems. The 'waste' MC is extremely expensive when it comes to disposal by hazardous waste handlers because there isn't any caloric (doesn't burn readily) value for it to be used as a fuel. So waste often has to be incinerated. A few years ago I posted quite a bit of information, that is now in the archives, re Methylene Chloride. Probably many of the links that I referenced would need to be updated. Gary Rodgers ------=_NextPart_000_0018_01C4AEDD.F0D4A650 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

<<Gary,

The gloves are PVA and = are coated=20 with Polyvinyl Alcohol. The glove backing looks like a woven synthetic = fabric=20 but it could also be cotton. They are manufactured by Ansell Edmont and = their=20 model number is 15-552. They are offered in three sizes and can be = ordered with=20 longer sleeves for added protection. Don't order the small because they = are=20 "really small" and the glove has no stretch. The warning states that the = PVA=20 will dissolve in water but at the same time is impervious to MC,=20 perchloroethylene, xylene, kerosene and mineral spirits. They are = required to be=20 stored in a polyethylene bag with closure and the bag of desiccant they = were=20 shipped with. They work great with MC but are considerably stiffer = than=20 butyl, vinyl or any glove I tried. They have no "feel" at = all.

Mark Quinn

Carbon 360

Daytona Beach Florida.>>

Mark;

Products are related, and = probably there=20 is some terminology cross-over. If you look at some techincal = data=20 that gives recommendations for protective wear, such as http://www.ehs.cornell.edu/lrs/chp/11.glove.table.PDF= , it calls up 'polyvinyl acetate' gloves for use with = MC. =20 Other places refer to 'polyvinyl alcohol'. I have always equated = the=20 gloves with 'acetate', and 'alcohol' with the parting agent used when I = had to=20 release a complex part, or break in a new mold. =20

The glove=20 type that you reference is the correct type.

POLYVINYL ALCOHOL: A water-soluble polymer made by hydrolysis of a = polyvinyl=20 ester (such as polyvinyl acetate); used in adhesives, as textile and = paper,=20 and for emulsifying, suspending, and thickening of solutions. = Abbreviated=20 PVA.

I have used = literally hundreds=20 of tons of MC over the years in industry, including setting up = distillation=20 recovery systems. The 'waste' MC is extremely expensive when it = comes to=20 disposal by hazardous waste handlers because there isn't any caloric = (doesn't=20 burn readily) value for it to be used as a fuel. So waste = often has=20 to be incinerated.

A few years ago I = posted quite=20 a bit of information, that is now in the archives, re Methylene = Chloride. =20 Probably many of the links that I referenced would need to be=20 updated.

Gary=20 Rodgers

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