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Polyurethane To Metal Bonding Agent 840 Equivalent To Cilbond 24

Polyurethane To Metal Bonding Agent 840 Equivalent To Cilbond 24

Brand Name ExceedChem
Model Number 840
Certification ISO9001
Place of Origin China
Minimum Order Quantity 100KG
Price 16.5usd/kg
Payment Terms L/C, T/T
Supply Ability 10000mt/year
Delivery Time 14 days
Packaging Details 3.5kg/drum; 18kg/drum
Detailed Product Description

Polyurethane to Metal Bonding Agent 840

 

(Equivalent to Cilbond 24)

 

1. Introduction

 

It is a one-coat bonding agent used to affix castable and millable polyurethane elastomers to metals and other rigid substrates. It is composed of a mixture of polymers and resins dissovled in an organic solvent system.

 

2. Features and Benefits

 

Environmentally Resistant-- provides excellent resistance to water, salt spray, a variety of solvents and other environmental conditions.

Convenient--requires no primer, reducing labor and costs.

 

3. Typical properties

 

AppearanceClear to slightly hazy amber liquid

Viscosity, cps @ 25℃(77℉)

Brookfiled LVT

Spindle 3,60 rpm

400-1000
Density(kg/m3)950.0-990.0
Solids content by weight, %18-21
Flash point(seta), ℃2-15
SolventsToluene, Trichloroethylene, Isopropanol, Ehtanol

 

4. Application

 

Surface Preparation – Thoroughly clean metal surfaces prior to application. Remove protective oils, cutting oils and greases by solvent degreasing or alkaline cleaning. Remove rust, scale or oxide coatings by suitable chemical or mechanical cleaning methods.

 

Mixing – No agitation is required before or during use. If dilution is needed, use either a 1:1 isopropanol: toluene blend (by volume) or glycol ether solvents. Note proper dilution for the various application methods is best achieved by experience.

 

   Applying – Apply Polyton® 840 by brush, dip, spray, roll coat or any method that gives uniform coating and avoids excessive runs and tears.       Regardless of application method, dry film thickness of Polyton® 840 should be 15-35 micron. Polyton® 840 is also tolerant of processing   conditions such as long prebakes.

 

Drying/Curing – Allow coated parts to air-dry for at least 60 minutes at room temperature for complete solvent evaporation. The film may be force dried at higher temperatures for shorter periods of time. Drying for 15 minutes at 121°C (250°F) has no harmful effect on performance.

 

To enhance cohesive strength, bake coated inserts a minimum of 2 hours at 121°C (250°F). Large inserts will require longer baking time at 121°C (250°F) to negate the heat sink effect.

 

Parts coated with Polyton® 840 may be vulcanized immediately after air-drying.

 

Molding procedures that are used with heat vulcanizing urethane elastomers can be used with Polyton® 840 adhesive. The cure time and temperature are the same as the process conditions required to vulcanize the urethane compound being molded. Best results are obtained with curing temperatures above 71°C (160°F).

 

Cleanup – Use alcohol, such as isopropanol, or a chlorinated solvent, such as trichloroethylene, to clean up small spills.

 

5. Shelf Life/Storage

Shelf life is one year from date of shipment when stored at 21-27°C (70-80°F) in original, unopened container. Do not store or use near heat, sparks or open flame.

 

 

Product Tags: Polyurethane To Metal Bonding Agent 840   Bonding Agent Equivalent To Cilbond 24   Polyurethane To Metal Bonding Agent  
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