Rohm and Haas


POLYFLOCK™ 97

Description

Polyurethane flocking adhesive, crosslinking with both humidity and heat.

Specific Features

Mono-component, fast, good resistance to humidity.

Field of Use

Elastomer profiles for automotive sealings (EPDM, CR, SBR/EPDM blends).

Typical Properties
These properties are typical but do not constitute specifications.

Composition

Polyurethane prepolymer and crosslinkers in MIBK, Xylene and Ethyl Acetate

Appearance

Liquid and solid, brown

Dry solids

38-41%

Viscosity as supplied

16-21 seconds (CF 4, 25°C)

Density

0,96 g/cm3 (20°C)

Flash Point

+21°C, Seta Flash series 7 (close cup)

Pot life

4 hours

Directions for Use

Before use, the adhesive must be homogenized and its temperature close to 20°C. Application of the adhesive can be done by brushing or by spraying on the substrate. The flock is then applied (Polyamide or Polyester), and the adhesive film is crosslinked under I.R. or by passing through a hot air tunnel.

The flock holds well as soon as the flocked profile cools down. Maximum performances however are obtained within 2-3 days.

Cleaning

After use, the equipment must be cleaned with solvents like MIBK.

Storage and Handling

When transfering product out of the original containers into the gluing station, it is recommended to work under a light nitrogen pressure to avoid any contact with the air humidity.

Keep containers tightly closed to avoid any reaction with the air humidity.

Product taken out of the container must be entirely used; never put back product in the container.

The shelf life of the product is 6 months if stored in unopened original containers at temperatures between 15 and 30°C.

Please read the MSDS carefully to learn more about the precautions to take when storing and handling this product.

Safety Information

Material Safety Data Sheets (MSDS) are available for all Dow products. These sheets contain important information that you may need to protect your employees and customers against any known health and safety hazards associated with our products. We recommend that you obtain copies of our MSDS from your local Dow technical representative before using our products in your facilities. We also suggest that you contact your suppliers of other materials recommended for use with our products for appropriate health and safety precautions before using them.