Tuesday, July 4, 2017


In the case of epoxy coatings, the VOC requirement for floor coatings calls for less than or equal to 100 g/L in order to obtain the credits for LEED ( Leadership in Energy & Environmental Design, another factor of increasing importance concerning VOC regulations is the Green Building   ) classification. The challenge comes from the fact that most, if not all, of the so-called solvent-free epoxy coatings quite often have a nonreactive plasticizer in their composition. These plasticizers give the final coating the flexibility necessary to meet industry requirements. The most common nonreactive plasticizer used is BENZAL. This normally results in a standard VOC content in excess of 250 g/L, if the BENZAL is classed as a volatile compound. Additionally, as BENZAL is classed as a fugitive plasticizer (one that volatizes during the drying process) the coating can lose its flexibility over the service life as the BENZAL leaches out of the coating.

BENZAL  is added to coating formulations in order to ensure good processing viscosity at low temperatures (about 15° C.). BENZAL as a solvent are its low volatility and low toxicity. The product is used as a coalescing agent or as a co-solvent. It has a good performance in dissolving hydrophobic amines in water- based systems and also acts as a viscosity-reducing agent in some coating systems.

BENZAL is a versatile co-solvent used in a wide range of curing agent formulations for epoxy resins used in coatings, flooring systems, adhesives, etc. The product can also be used as a co-catalyst and plasticizer and to keep the temperature low during the curing process.

In paint strippers BENZAL is used as an environmentally friendly substitute for methylene chloride. Major applications are in industrial paint stripping (in particular in formulations used for aircraft) and in architectural, professional and do-it-yourself paint stripping.

In the pharmaceutical industry BENZAL is used as a preservative, in emulsions and ointments and in insect-bite lotions.

BENZAL  is used as a raw material in the manufacture of its various esters, which are used in the soap, perfume and flavor industries and as an intermediate in the synthesis of polypeptides. Examples of these esters are benzyl acetate and benzyl benzoate. Benzyl acetate is used in flavors for its pear-like taste, as a jasmine perfume ingredient and as a fixative for artificial musks. Benzyl benzoate finds application in pharmaceuticals, as a fixative in perfumes, as a flavoring in confectioneries and chewing gums, and as a softener in lacquers.

Based on the high purity and stable odor profile our BENZAL is also used for fragrance applications. Other applications of BENZAL include coatings, lacquers, photo developer systems, metal cleaning formulations, cosmetics and hair care applications.
Next opened http://www.sanminglobe.com/2017/07/benzal-for-cosmetic-parfume-and-soap.html

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