Vertrel^® CHD is a powerful degreaser formulated for use in aerosols, cold cleaning, flushing and wiping applications. This cleaner was specifically formulated for organic contamination and offers heavy duty degreasing of oils, greases and tough-to-clean fluxes as well as excellent environmental properties. It also can be used as a powerful defluxer -- although it does not work well with "no-clean" fluxes -- and as an ingredient in the formulation of nonflammable, fast-drying aerosol cleaners. This cleaner is an excellent replacement for cold-cleaning applications using the strongest blends of CFC-113, HCFC-141b, HFCF-225, methyl chloroform-based products and nPB.

Specifically, Vertrel^® CHD is a proprietary near-azeotrope of a nonflammable hydrofluorocarbon HFC solvent called HFC 43-10mee (which is also known as 2,3-dihydrodeca-fluoropentane), trans-1,2-dichloroethylene and ethanol.

The primary benefit of Vertrel^® CHD is that it is one of the most economical solvents available which (a) offers very aggresive cleaning, (b) is nonflammable and (c) dries instantly.

Importantly, Vertrel^® CHD is not optimized for use in vapor degreasing equipment. For applications requiring use in cleaning equipment, selected Vertrel^® CF, MicroCare CMS or MicroCare CCA.

Details about the solvent and it's physical properties are found in the DuPont Product Spec sheet, available as a PDF file.

Unlike the PFCs, Vertrel^® CHD is completely miscible with heavy hydrocarbons and most esters, ketones, ethers, ether-alcohols, and the lower alcohols, such as methanol, ethanol and isopropanol. The lower hydrocarbons, such as hexane and heptane, are also soluble. Because Vertrel^® CHD is a very aggressive cleaner materials compatibility may be a problem; thorough testing before widespread deployment is strongly recommended. However, in general most plastics and common electronic components can be safely cleaned in Vertrel^® CHD.

Specifically, acrylic, ABS and polycarbonate parts, particularly if under stress, may show slight cracking or crazing damage and should be tested. Polystyrene ABS polyphenylene oxide and PPO acrylics are definitely not recommended. EPDM, butyl rubber, Buna-S, and neoprene are recommended for elastomeric parts. Vertrel^® CHD is compatible with zinc, stainless steel, aluminum, copper, and brass.

Toxicity studies have demonstrated that the components of Vertrel^® CHD have low toxicity and are safe when handled in accordance with DuPont recommendations and when exposures are maintained below recommended exposure limits. Vertrel^® CHD has been assigned an 8-hr AEL of 226 ppm (calc) with a 400 ppm ceiling limit that should not be exceeded during any part of the working day. Vertrel^® CHD is a skin and eye irritant and has low acute inhalation toxicity.

Like most of the Vertrel^® products, this product is not flammable. Vertrel^® CHD exhibits no closed cup flash point per the Pensky-Martens Closed Cup Tester (ASTM D93) and is not classified as a flammable liquid by NFPA or DOT. laboratory tests with virgin solvent in an open vessel show the solvent will not sustain combustion and quickly self extinguishes.

For further details about the safety of the solvent carefully read and understand the data in the DuPont Material Safety Data Sheet, available as a PDF file.

Vertrel^® CHD has "zero" ozone depletion potential, and low global warming potential. All components of Vertrel^® CHD are accepted under the USA EPAÕs Significant New Alternatives Policy (SNAP) and TSCA listed.

Vertrel^® CHD is thermally stable and does not oxidize or degrade during storage. Vertrel^® CHD is normally used in emmissive applications and not normally recovered. If spent solvent is recovered for disposal, users should test the material to ensure the proper classification for waste disposal.

Vertrel^® CHD is available commercially in 55-gal (208-L) drums with a net weight of 500 lb (227 kg) and five-gallon and one-gallon pails. One one-liter canisters are available from Micro Care Marketing Services on request. Customers are encouraged to secure samples now for compatibility and performance testing.

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