News | November 15, 2005

BASF Chemicals Receives EPA Approval For New Polyurea Coatings

Polyclear136, a new aliphatic, polyurea coatings chain extender from BASF Chemicals, provides faster film property development, better adhesion, easier processability

BASF has received approval from the United States Environmental Protection Agency to market its new, aliphatic, modified isophoronediamine (mIPDA) chain extender for use in formulating light-stable polyurea coatings. These coatings are used in a variety of applications that range from the sealing of concrete floors to the protection of pick-up truck beds.

Sold under the trade name Polyclear 136*, this new product was developed by BASF in close cooperation with The Hanson Group LLC, Duluth, Ga., to provide improved performance to polyurea coatings formulators and their customers. * Polyclear 136 is a trademark of The Hanson Group LLC.

"Polyclear 136 provides superior performance at a lower formulation cost," said Joe Lynch, Business Director for BASF's Intermediates business in North America. "It enables formulators to achieve excellent coating performance with less chain extender. In addition, it's easier to process."

"Faster film property development, better adhesion to substrates and excellent ultraviolet light stability are important benefits that can help polyurea coating applicators to be more successful," said Dudley J. Primeaux II, Primeaux Associates LLC, Elgin, Texas. "In addition, Polyclear 136 is the only chain extender that is approved for use globally."


"Use of Polyclear 136 enables the polyurea coating system to have a much longer gel time, improving adhesion, film properties and processability through the plural component spray equipment," said Christiane Hackl, Industry Manager, Epoxy and Polyurea Products for BASF's Intermediates business in North America. "As a result, the coating surface that is achieved is smoother, and optically more appealing. Even though the gel time is longer, the development time for cured properties is reduced significantly."

Other benefits of using Polyclear 136 in polyurea coatings include a higher flash point, the absence of volatile substances, creation of a more elastic and sturdier coating, and the elimination of yellowing.

Produced in BASF's integrated manufacturing facility in Ludwigshafen, Germany, Polyclear 136 is currently in the product development programs of several polyurea coatings formulators.

SOURCE: BASF Chemicals