Spray Polyurea Elastomer Technology
1. INTRODUCTION Besides high building, water-boned, UV radiant-curing and powder coating technology, Spray Polyurea Elastomer Technology (hereinafter called SPUA) has recently shown large increases in market interest, sales volume and use because of legislation on reducing the volatile organic compounds (VOCs) of the coating in CHINA. SPUA overcomes many shortcomings of traditional application technology and make a revolutionary leap for application in site.
2. ADVANTAGES Excellent mechanical properties and extended durability, even in extreme environmental conditions. Fast, consistent reactivity that is hydrophobic and therefore affected very little by damp or cold surfaces. It can be sprayed directly on water or ice and has been sprayed at -20℃ with minimal effect on tack free time. No catalysts are required. Excellent adhesion to a wide variety of substrates for properly formulated systems
2. ADVANTAGES Readily compliant with regulations limiting the levels of volatile organic compounds. Polyurea spray elastomer systems are able to meet stringent environment standards due to the 100% solids formulations. Polyurea can be built up to any thickness in one application including vertical and overhead surfaces. It eliminates the sagging the need for multi-coat applications. Polyurea is characterized with good weathering, abrasion resistance, chemical and water resistance, especially insensitivity to humidity.
3. Tab.1 DEVELOPMENT HISTORY Nation Developed Commerical U.S.A 1986 1991 Australia 1993 Japan 1995 Korea 1997 China 1999
4. SPUA in China---1997, 4
Low Output Hydraulic Pressure, High Material’s Viscosity, 5000cps, 4. SPUA in China---1997, 5～1998, 5 Low Output Hydraulic Pressure, High Material’s Viscosity, 5000cps, Poor Knowledge on SPUA PUZZLE
4. SPUA in China---1999, 4
4. SPUA in China---2000, 6
4. SPUA in China---2000, 6
4. SPUA in China---2000, 7
4. SPUA in China---2000, 8～10
Typical Project on The Concrete Surface Dalian Polar Zoo
4. SPUA in China---2001, 9～10
4. SPUA in China---2001, 9～10
Typical Project on The Steel Surface Qingdao Alkaline CO. Ltd.
4. SPUA in China---2001, 4～Present heavy corrosion (less 6 months)
4. SPUA in China---2001, 4～Present welding new panel (substrate preparation)
4. SPUA in China---2001, 4～Present spray SPUA-101
4. SPUA in China---2001, 4～Present spray SPUA-101
4. SPUA in China---2001, 4～Present over 30 tanks were sprayed
4. SPUA in China---2001, 4～Present over 30 tanks were sprayed
4. SPUA in China---2001, 4～Present over 30 tanks were sprayed
Typical Project on The Other Surface
4. SPUA in China---2002, 7 solid buoyant materials
4. SPUA in China---2002, 7 solid buoyant materials
4. SPUA in China---2002, 5 steel bridge over street
4. SPUA in China---2003, 7 Qing Dao Technological University tennis count