Lead Free Liquid Form Rubber Adhesive, Bonding Agent For Rubber To Metal
Product Specifications
| Attribute |
Value |
| Bond Strength |
Strong |
| Odor |
Solvent |
| Classification |
Chemical |
| Form |
Liquid |
| Type |
Adhesive |
| Application |
Rubber Bonding |
| Color |
Black |
Product Description
Thinkbond 27MS is a lead-free bonding agent designed for bonding rubber compounds to metals and other solid materials under vulcanization conditions. This adhesive is particularly effective for compounds that are difficult to bond and have low hardness. It can be used as a one-coat bonding agent or as a cover cement over primers like Thinkbond 11H.
Physical Characteristics
| Property |
Value |
| Appearance |
Oliver-green to black liquid |
| Non-volatile solids (1h @ 105°C) |
22.0-25.0% |
| Density at 25°C |
0.96-1.02 g/cm³ |
| Viscosity Brookfield at 25°C |
200-500 |
| Diluents |
Xylene or solvent |
| Bonding Temperature Range |
150 to 220ºC |
| Shelf life |
1 year (closed can below 25ºC) |
Compatible Elastomers
- Natural Rubber (NR)
- Nitrile (NBR)
- Polyisoprene (IR)
- Butyl (IIR)
- Styrene-butadiene (SBR)
- EPDM Polymers
- Polybutadiene (BR)
- Polychloroprene (CR)
Surface Preparation
For optimal bonding, prepare metal surfaces by completely removing oil, grease, and dirt. Grit blast the surface to achieve roughness greater than 15 µm. For aluminum surfaces, use aluminum oxide as abrasive. After blasting, clean the substrate to remove dust residues. Thinkbond 27MS can be applied to surfaces treated by chemical processes like galvanizing, phosphating, or KTL.
Application Methods
Brushing: Use undiluted. Drying time approximately 30 minutes at 20ºC. Stir before and during use.
Spraying with air: Dilute with xylene or solvent (1 part bonding agent + 0.3-0.6 parts diluent). Viscosity should be 30-90mPa.s(cp) (Brookfield LVT). Drying time approximately 15 minutes at 20ºC. Use spray gun (e.g., Walther Pilot III) with 1.0 mm nozzle at 3-4 bar air pressure. Stir before and during use.
Other application methods are possible. For cleanup before heat application, use solvents like xylene or perchloroethylene.
Safety Information
Prolonged inhalation of vapors is harmful. Always use with facial breathing mask, gloves, protective glasses, and proper ventilation. Continuous skin contact may cause irritation. If swallowed, do not induce vomiting - seek immediate medical attention.
Storage: Keep container tightly closed and away from heat sources. Storage below 10ºC extends shelf life.
About Shanghai LoreChem Co., Ltd.
Established in 2008, Shanghai LoreChem is a high-tech enterprise specializing in release products including semi-permanent release agents, anti-sticking solutions, surface lubrication, and thermal reactive adhesives. With 15 years of continuous quality improvement, our products are widely used in rubber, polyurethane, and composite industries. Our registered brands Lubekote (release agents) and Thinkbond (adhesives) are well recognized in the industry.
We serve domestic and international high-end manufacturing enterprises with professional technical solutions and services, with the long-term goal of becoming one of Asia's premier release agent suppliers.
