Rubber to Metal Bonding Adhesive 823GB Replacement of Chemlok 220
Price:
To be negotiated
MOQ:
1mt
Delivery Time:
two weeks
Brand:
EXCEEDCHEM
Product Description
Rubber to Metal Bonding Adhesive 823GB Replacement of Chemlok 220
Rubber to Metal Bonding Adhesive 823GB Replacement of Chemlok 220 is a versatile cover-coat adhesive and an excellent alternative to Chemlok 220, 6125, and 6220. It's designed to bond a wide range of elastomers to metal substrates during the vulcanization process. This adhesive is formulated without heavy metals and consists of a blend of polymers, organic compounds, and mineral fillers dispersed in an organic solvent system.
Applicable Range
Used as a cover coat adhesive and in combination with a primer adhesive, suitable for the following types of rubber:
- Natural rubber (NR)
- Natural & butadiene rubber (NR+BR)
- Polyisoprene rubber (IR)
- Butadiene rubber (BR)
- Chloroprene rubber (CR)
- Styrene butadiene rubber (SBR)
- Nitrile butadiene rubber (NBR)
Physical Properties
| Property | Value |
|---|---|
| Appearance | Black Liquid |
| Viscosity, cps @ 25°C (77°F) Brookfield LVT Spindle 2, 60 rpm | 70-600 |
| Solids Content by Weight, % | 23-27 |
| Flash Point (Seta), °C | 30 |
| Solvents | Xylene/Dimethyl carbonate |
Application Instructions
Stirring
During storage, some sediment will settle at the bottom of the container. Before painting, it must be thoroughly stirred to achieve uniform mixing before use. If the painting process is long, stir at high speed for 5-10 minutes every 2 hours.
Diluting
This product can be diluted with diluents according to operational needs. It is recommended to dilute according to the amount used. Diluted products should not be stored for a long time.
Application Methods
- Brush coating method: No dilution required, or 100 parts of 823GB and 10 parts of diluent
- Roller coating method: No dilution required, or 100 parts of 823GB and 10 parts of diluent
- Dip: 100 parts of 823GB and 20-30 parts of diluent
- Spray method: 100 parts of 823GB and 50-100 parts of diluent
Coating
This product can be coated by brushing, dipping, roller coating, or spraying. The processing layer should be uniform to avoid excessive overflow.
Cover Coating
Dry film thickness (DFT) 10-20μm.
Drying
Drying at room temperature takes about 45-60 minutes. Forced drying can shorten the drying time.
Cleaning
Before heating vulcanization, dip a rag in xylene solvent to remove excess treatment agent spilt around. Once cured, solvent cannot be removed.
Vulcanization
Vulcanization of rubber and adhesive simultaneously provides the best bonding properties. When the coating is placed in the molding mold, it should be quickly filled with rubber vulcanization. The actual curing condition depends on the rubber's curing condition.
Shelf Life & Storage
Shelf life is 12 months from date of shipment when stored at <37℃ in original, unopened container. Do not store or use near heat, sparks or open flame.
Precautions
- This product is volatile - close the container after use
- Solvent steam is harmful - maintain proper ventilation and fire prevention measures
- Avoid long-term inhalation or skin contact
- Refer to SDS for complete safety information
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Qingdao Exceed Fine Chemicals Co.,Ltd
Location
No.166, Zhengyang Middle Road, Chengyang District, Qingdao City, Shandong Province, China. 266000
Contact Person
Louis.liu