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. ADVANTAGESExcellent 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. ADVANTAGESReadily compliant with regulations limiting the l

evels 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 1993

Japan 1995 1995

Korea 1997 1997

China 1997 1999

4. SPUA in China---1997, 4

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～ Presentheavy 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