Rubber to Metal Bonding Agent 827

Product Detail

1. Introduction

827 is an adhesive used as cover-coat with substrates surface treatment adhesive, or can be used as one-coat in some occasions. It is suitable for the rubber as below:

Natural rubber (NR), polyisoprene (IR), polybutadiene (BR), polychloroprene (CR), styrene-butadiene (SBR), nitrile (NBR), butyl (IIR), Ethylene-Propylene-Diene Monomer (EPDM), etc.

 

2. Features

Free of chlorinated solvent;

Free of heavy metal element;

Good bonding performance at low temperature;

Good prebrake resistance;

Good weather resistance, heat resistance, water resistance, solvent resistance, oil resistance, salt resistance, corrosion resistance;

 

3. Typical Properties

Components

Polymers, organic compounds, inorganic fillers and organic solvents

Color

Black

Solids Content

22~26%

Viscosity

(23℃, Brookfield LV2 30rpm) 300~700cps

(23℃, 3 # Zahn Viscosity cup) 30~60 seconds

Flash Point

25~28℃

Diluent

Xylene

Solvent

Xylene

Shelf life

12 months at 23℃ for unopened containers

4. Applying  827

Fully stirring: During the storage of 827, part of it will deposit at the bottom of the container. It must be fully stirred before applying, and it can be used only after it is evenly mixed; if the applying process take long time, it should be stirred at high speed for 3-5 minutes at intervals of 2 hours.

Dilution: This product can also be appropriately diluted by adding diluent according to the actual operation needs. It is recommended to dilute according to the amount used, and the diluted product cannot be stored for a long time.

Brushing method: No need to dilute;

Roller painting method: No need to dilute;

Dip painting method: 100 parts 827 plus about 0-50 parts diluent;

Spraying method: 100 parts 827 plus about 30-80 parts diluent.

Applying: This product can be applied by brush painting, dip painting, roller painting, spraying and other methods. The coating should be even, avoid excessive overflow.

Cover-coat use: dry film thickness 10-20μm, caustic environment resistance 20-25μm;

One-coat use: dry film thickness 15-25μm, caustic environment resistance 25-35μm;

Drying: It takes about 40-60 minutes to dry at room temperature, and forced drying can shorten the drying time.

Storing: This product should be stored in a dry and room temperature environment, avoid exposure to high humidity and high temperature environment for a long time.

Adhesive removal: Use a rag to dip in xylene solvent to remove excess adhesive overflowing around before heating and curing. Once cured, it cannot be removed by solvent.

Curing: The best bonding performance can be obtained by curing rubber and the adhesive at the same time. When the painted part is placed in the molding die, it should be quickly filled with rubber and clamped to cure. Actual cure conditions depend on compound cure conditions.

 

5. Notes

1. The solvent is volatile, please cover the container tightly after use.

2. The solvent vapor is harmful; the workplace should be fireproof and ventilated to prevent long-term inhalation or long-term skin contact.

3. For more safety information, please refer to MSDS.

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