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Sika Launches i-Cure Polyurethane Product Technology to Reduce Emissions

Published on 2011-03-09. Author : SpecialChem

New substance specification 67/548/EWG restricts the sales of products containing MDI (Methylendiphenyldiisocyanate) in Europe and therewith enforces the principles that Sika has been following for more than three decades since end of last year.

To ensure a higher level of protection of man and the environment, the Directory of Community legislation constantly updates the rules on classification, packaging and labeling of substances while taking scientific and technical progress into account.

A new restriction has been launched concerning all polyurethane (PU) products containing more than 0.1% MDI (Methylendiphenyldiisocyanat). With the new regulation, products containing more than 0.1% MDI must be sold together with gloves and those with 1% MDI shall only be available in specialized trade shops with a sales force with expert knowledge. Self service will not be allowed and additional risk phrases must be added on the packaging.

Sika, as leading global supplier of polyurethane (PU), puts all of their effort into offering products with very low MDI content. The Sikaflex® and SikaBond® product range for the construction industry, sold via specialized trade and DIY channels are not be affected by the new regulation as these products have contained less than 0.1% MDI for decades. Sika has high ethical standards and ambitious environmental and safety goals, and therefore continuously invests in R&D to find ways to reduce emissions and to develop environment-and consumer-friendly construction chemicals.

Sika launches the new i-Cure technology to further reduce emissions to protect the natural environment and improve the conditions for people producing, working and living with our products and systems.

The term i-Cure stands for "intelligent curing" and is the chemical base for the new crosslinking technology for polyurethane sealants and adhesives. It allows a combination of the best properties and excellent price/performance ratio of classic polyurethane sealant and adhesive technology, with features such as bubble free curing and very low emissions. Products based on i-Cure show that this technology has the potential to develop formulations with improved weatherability (UV stability) and lower tendency for discoloration when exposed to sunlight, compared to previous polyurethane and silane-terminated polymer based sealant and adhesive generations. The new products exhibit unsurpassed adhesion to porous and non-porous substrates and unlike many sealants and adhesives, Sikaflex® and SikaBond® i-Cure sealants and adhesives are solvent-free and completely odorless. This allows Sika's polyurethane products to meet the highest and increasingly stringent emission standards of current and upcoming regulations in many countries.

i-Cure lifts polyurethane products to a new technology platform with unprecendented performance regarding workability, durability, adhesion and ecology.

About Sika

Sika Corporation, based in Lyndhurst, NJ, is a leading supplier of specialty chemical products and industrial materials serving construction and industrial markets including transportation, marine, and automotive. Its technologies are focused on sealing, bonding, damping, reinforcing and protecting. Sika's product lines include concrete admixtures, specialty mortars, epoxies, structural strengthening systems, industrial flooring, sealants, adhesives, specialty acoustic and reinforcing materials. Sika Products are used in a wide array of applications and always fulfill the highest quality standards. We are committed to customer satisfaction, innovation, and teamwork.

Source: Sika

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