Cold Vulcanizing Solutions

Cold Vulcanizing Solutions offered comprise Cold vulcanizing also known as Non Flammable Cold Vulcanizing solutions. Here, the CONTIBELT 9000 offered is a black color, viscous liquid that has brushing viscosity. As a two component, room temperature curing synthetic rubber based adhesive, when catalyzed using appropriate amount of hardener, it yields high strength adhesion when bonding -

• Rubber to rubber
• Rubber to fabric
• Rubber to steel
• Rubber to PVC
• Urethane
• Fiberglass
• Concrete

With CONTIBELT 9000 formulated after extensive R & D efforts, we are able to successfully address diverse process needs of different industry sectors. Further, these cold vulcanizing solutions are also highly popular for applications involving -

• Conveyor belt jointing
• Pulley lagging
• Belt repair

Mixing Ratio:

The mixing ratio involves -

• 100 gms of adhesive per 5 gms of hardener

Application Process:

• Add required amount of hardener with adhesive
• Mix solution properly until uniform coloration occurs
• Use recommended dosage of 5 grams of hardener with 100 grams of adhesive
• The prepared mixture need to be consumed within 2-3 hrs so as to avoid -
• Effect of solvent evaporation
• Thickening of mix because of cross linking that leads to inferior spreading property
• Keep pot covered when not in use as product is highly sensitive to moisture

Benefits:

• Providing higher coverage in a cost effective way
• Providing superior bonding strength, thus ensuring of a quality output
• Allowing more open time that meets production cycle needs
• Provides for uniform performance
• As it does not contain benzene, it saves human life from cancer possibility

Application Procedures - Examples:

Rubber to Steel:

Pre-application Safeguards:

• Metallic surfaces need to be free of oils, grease as well as other contaminants
• Here, it should also be ensured that rust and mill scale are removed through sand blasting process to NACE #2 (for this profile of 2-3 mils is preferred)
• The cured rubber should have all mould release agent removed as well as buffed with stiff bristled wire brush of 24 grit
• This should be done at speed that does not burn the rubber surface

Application:

• Apply first coat to each surface in a scrubbing like motion
• Allow coat to dry for around 1 hour at 25^oC
• After required drying time, second coat is applied to each surface
• Let this dry until tacky and then compress both surfaces through stitch down/applying pressure
• Maximum bond strength would develop in around 21 days (however sufficient initial bond strength will be achieved after 24 hours that makes it ready for most services)

Rubber to Rubber:

Pre-application Safeguards:

• Rubber, if cured in sheet form need to be solvent cleaned as well as buffed as described before application of the first coat of adhesive

Application:

• Allow first coat to dry for at least 1 hour or longer
• After required drying time, second coat is applied
• When still tacky, stitch two components together/or apply pressure

Rubber to Other Substrates:

For adherence to other elastomeric materials/special environmental conditions, please undergo trial so as to determine -

• Suitability of product with individual materials
• Determine the preferred method of application

Specifications: