Dow Spray PolyureaProperties and applications

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About DOW ChemicalsDow combines the power of science and technology to passionately innovate what is essential to

human progress. The company is driving innovation that extracts value from material, polymer,

chemical and biological science to help address many of the world's most challenging problems,

such as the need for fresh food, safer and more sustainable transportation, clean water, energy

efficiency, more durable infrastructure, and increasing agricultural productivity. Dow's integrated,

market-driven portfolio delivers a broad range of technology-basedproducts and solutions to

customers in 175 countries and in high-growth sectors such as pack aging, infrastructure,

transportation, consumer care, electronics, and agriculture. The Company's more than 7,000

product families are manufactured at 189 sites in 34 countries across the globe. References to

“Dow” or the “Company”mean The Dow Chemical Company and its consolidated subsidiaries

unless otherwise expressly noted. More information about Dow can be found at www.dow.com

About Durotech PolymersDurotech Polymers is an Australian owned and operated chemical company that specializes in the

field of Polyurethane Chemistry for over 40 years. Durotech was established in 1977 with products

that served the construction market. After a few years, Durotech moved into polyurethane based

products supplying into serval markets to meet customer needs. In 2018, Durotech has successfully

begun the forward and backward integration of various technologies and that has led to the

formation of Durotech Polymers - one of the fastest growing innovative polyurethanes systems

house around the world.

With over 60 staff deployed worldwide, export functions to over 15 countries and global

manufacturing facilities in 2 countries, Durotech is quickly becoming a market leader and preferred

choice for customers around the world.

Durotech Polymers works in 6 categories:

Flexible Foams Rigid Foams

Elastomers Sealants

Adhesives Coatings

Durotech Polymers prides itself on outstanding product quality and customer service. Believing in

end to end solutions, Durotech has and always will cement itself as the next generation

polyurethane systems house.

TM Trademark of the Dow Chemical Company ("DOW") or an affiliated company of DOW. ®

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Rigid Foam Flexible Foam Elastomers

Coatings Adhesives Sealants

Polyurethanes are one of the most versatile plastic

materials and Durotech Polymers is proud to

distribute and manufacture type of Polyurethanes:

DOW PolyurethanesDow Polyurethanes develops and delivers a broad portfolio of technologies and customized

solutions to customers in a variety of industries under its Durable Science, Comfort Science and

Insulation Science category brands. Applications range from industrial and infrastructure solutions,

to consumer comfort solutions in flooring, furniture bedding and footwear, to energy-efficient

insulation materials. The business manufactures and sells key chemical components as well as

fully-formulated polyurethane systems for rigid, semi-rigid and flexible foams, and coatings,

adhesives, sealants, elastomers and composites. Dow is the world's largest producer of propylene

oxide (PO), propylene glycol (PG), and polyether polyols, and is a leading producer of quality

aromatic isocyanates, such as MDI. Striving to meet the specific needs of its customers in their local

geographic regions,

Dow Polyurethanes operates a global network of production sites and systems houses, as well as

innovation and service centers. The business has an ongoing initiative to lead the industry in

providing high-performance products that meet critical market needs and contribute to a more

comfortable, healthier and resilient society.

For more in formation, visit www.dowpolyurethanes.com

Performance Advantages of Spray PolyureaŸ Excellent environmental performance as no solvent is used

Ÿ Fast curing--can be sprayed on a sloping or vertical surface without dripping or forming traces of

flowing

Ÿ No special requirements on the temperature and humidity of the application environment

Ÿ Able to maintain excellent elasticity in low temperature; good corrosion resistance; better wear

resistance compared to epoxy and rubber

Ÿ Desired reactivity and hardness can be achieved by adjusting the formulation, with a hardness

ranging from 30A to 70D

Ÿ Seamless lining without leaving any connecting locations that lead to leaking or wearing;

excellent waterproof performance.

Ÿ Excellent durability; no powderisation or cracking in long-term

exposure to outdoor environment

Application of Spray PolyureaŸ Wastewater systems (manholes, digestors, reservoirs)

Ÿ Pipeline protection (external and internal)

Ÿ Tank cofferdam

Ÿ Tank coating

Ÿ Bridges

Ÿ Coastal steel structures

Ÿ Conveyor belts

Ÿ Wearable lining for truck and train compartments

Ÿ Theme parks

Ÿ Artificial ponds

Ÿ Swimming pools

List of Main Products

A: Combined Polyethaers

B: Isocyanate Prepolymers

Type

Typical Properties and Applications

Gel Time (Seconds)

Hardness (Shore)

Elongation at Break

Chemical Resistance

Recommended Applications

Product Category

TM HYPERPLASTTM VORASTAR

HA6440

HB6042

Polyurea

8

52D

390%

+

Conventional

industrial

waterproofing

and corrosion

prevention

Conventional

industrial

waterproofing

and corrosion

prevention

Concrete and

metal surface

protection

Concrete and

metal surface

protection

Conventional

industrial

waterproofing

and corrosion

prevention

Conventional

industrial

waterproofing

and corrosion

prevention

+ ++ +++ + +

593% 340% >100% 320% 250%

85A 62D >90A 85A 95A

14 5 7 7 7

Pure Polyurea Polyurea Polyurea Polyurea Polyurea

HB6582 HB6549 HB7000 EMH85A EMH95A

HA6490 HA6153 HA7000 EMH85A EMH95A

Complete Immersion at Room

Temperature for 168 h(2)Rating (2)Rating (2)Rating

Hydrochloric Acid, 37%

Sulfuric Acid, 30%

Sulfuric Acid, 96%

Nitric Acid, 40%

Acetic Acid, 100%

Citric Acid 1%

Hydrogen Peroxide, 30%

Sodium Hydroxide, 60%

Ammonia, 28%

Sodium Carbonate Solution (20%)

Soap Solution (1%)

Mineral water

Sodium Chloride Solution / Brine (27-30%)

Detergent Solution

Dimethylformamide

Ethyl Acetate

Acetone

Mineral Oil

Ethanol

Methanol

Diesel Fuel

VORASTATRTM HA 6440/HB6042 TMVORASTATR HA 6153/HB6549TMVORASTAR HA 7000/HB7000(3)

NR

R

NR

NR

NR

R

C

R

R

R

R

R

R

R

NR

NR

C

R

NR

NR

C

NR

R

NR

NR

NR

R

R

R

R

R

R

R

R

R

NR

NR

C

R

R

R

R

R

R

NR

R

R

R

R

R

R

R

R

R

R

R

NR

NR

C

R

R

R

R

Rating R= Recommended C: Caution (some discoloration, deformation, swelling or cracking) NR: Not recommended

(1) Only common aspects of chemical resistance are listed here. If you need other specific data, please contact Dow technicians

(2) The data are based on the ASTMD 543 test.

(3) Evalution of the expected aspects of chemical resistance.

Chemical Resistance

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