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Polychloroprene Rubber CR 244 CAS No.: 9010-98-4 |
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Synonyms Name: Chlorobutadiene Polymer; Neoprene Rubber; 2-Chloro-1,3-Butadiene Description: A xanthogen-modified polychloroprene rubber with fast crystallization rate, high cohesion force and adhesion strength at normal temperature. Used mainly for production of adhesives. It is similar to Du Pont's type AD -20 and Denka's A-90. |
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Properties |
Specification |
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Viscosity in 5% toluene solution (mPa.s) |
CR2441 |
25-34 |
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CR2442 |
35-53 |
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CR2443 |
54-75 |
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CR2444 |
76- 115 |
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CR244A |
116- 140 |
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CR244B |
≥140 |
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Peel strength (N/cm) |
≥90 |
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Volatile matter (%) |
≤1.5 |
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Ash content (%) |
≤1.5 |
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Package: woven polypropylene lined-kraft paper bags with release polyethylene liner, 25 kgs net. Storage Life: one year below 25 ℃ from the date of production. |
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Product advantages
The crystallization speed is fast, and the cohesion strength significantly increases at room temperature, with high bonding strength; the self-adhesive and mutual-adhesive properties are excellent, suitable for preparing universal adhesives and graft adhesives; the weather resistance, ozone resistance, and aging resistance are stable, and the bonding layer is not prone to cracking or falling off; the rubber compound has good processing properties, uniform mixing, stable extrusion and molding; the flame retardancy is good, resistant to general oil corrosion, and the formula can be adjusted flexibly; it has strong compatibility with resins and fillers, and is suitable for various adhesive systems.
FAQ
Q: How to choose between 244 and 213 chloroprene adhesives?
A: 244 is mainly used for bonding and making adhesives; 213 is mainly used for weather-resistant sealing and shock-absorbing products.
Q: Where are they mainly used?
A: Universal adhesives, furniture adhesives, sealants, high-strength rubber bonding parts, shock-absorbing pads.
Q: Storage precautions?
A: Store in a cool, dry, and dark place. Avoid high temperatures and prevent the adhesive from crystallizing and hardening prematurely.
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