info@sundow.com   +86-0536-8057068

You current page: Home > Products > Chloroprene Rubber (CR) > Introduction-CR

Introduction-CR

CR

Chloroprene rubber is a polymer made from the monomer 2-chloro-1,3-butadiene.Neoprene is an important variety of synthetic rubber, not only has excellent light resistance, aging resistance, flexural r

CONTACT US PDF FORMAT

Chloroprene rubber is a polymer made from the monomer 2-chloro-1,3-butadiene.

Neoprene is an important variety of synthetic rubber, not only has excellent light resistance, aging resistance, flexural resistance, acid and alkali resistance, oil resistance and heat resistance, but also has good physical and mechanical properties; its comprehensive performance is incomparable to other synthetic rubber. It is widely used in national defense, transportation, construction, light industry and military industry. Neoprene is mainly used in the production of automotive parts, machinery and industrial products and adhesives.

Based on the abundant knowledge in polymer chlorination technology and extensive word-wide distribution channels, from 2015, Sundow stepped into chloroprene rubber business, a SURPREN brand is created for chloroprene rubber under the agreement between Sundow and its partner.

SURPREN technology is introduced from Nairit, Amenia; this technology was originated from DuPont Neoprene rubber.

And now SURPREN is exported to more than 15 countries such as USA, Russia, Brazil, Argentina, Korea, Germany, Italy, Spain, Australia, and India etc.


Table 1 The chloroprene rubber (CR) used in general industrial rubber products

Sundow SURPRENModifierCrystallizationMooney Viscosity, ML(1+4)100℃Dupont,SDK NeopreneLanxess BayprenDenkaTosohSkypreneMain application
SNR121SulfurSlow30-50GNA-M1GS510/611/711

PM-40

 PM-40NS 

DCR-40

R22/R11
Mine conveyor belts, power transmission belts, hoses, seals, wire and cable jackets
SNR122SulfurSlow51-65GNA-M2GS510/611/711

PM-40

 PM-40NS 

DCR-40

R22/R11
SNR123SulfurSlow66-75------------
SNR231MercaptanMedium34-41W-M1211M-30B31
Extruded bars, hoses, tapes, rubber seals, wire and cable jackets
SNR232MercaptanMedium42-54W/WB210

M-4

M-41

B30

R30

SNR233MercaptanMedium50-65------

M-40

 M-41/M-70

---
SNR238MercaptanMedium90-110WHV100230

M-100

Y31
SNR239MercaptanMedium111-130WHV230M-200
Y30
SNR321Four sulfide+ SulfurMedium34-49GW510/611/711

PM-40

 PM-40NS 

DCR-40

550

P90

Mine conveyor belts, power transmission belts, hoses, seals, cushions, wire and cable jackets.
SNR322Four sulfide+ SulfurMedium50-60---510/611/711

PM-40

 PM-40NS 

DCR-40

505

P90

SNR323Four sulfide+ SulfurMedium60-70------------

Table 2 The chloroprene rubber (CR) used in adhesives

Sundow SURPRENModifierCrystallizationBrook field viscosity, mPa s (25℃, toluene solution)Dupont,SDKNeopreneLanxessBayprenDenkaTosohSkypreneMain application
5%solid content10% solid content
SNR240TMercaptanFast15-23
AD5310A-30G42Adhesive
SNR241MercaptanFast25-35
AD10310/320A-70G40S
SNR242AMercaptanFast34-40
AD20320

A-90

 A-91

G40S-1
SNR242BMercaptanFast41-53
AD20320

A-90

 A-91

G55 

G40S-1

SNR243MercaptanFast54-75
AD30330/340A-100G40TAdhesive with higher tack.
SNR244MercaptanFast76-115
AD40340/350A-120G70 
SNR245MercaptanFast115-140
------A-400---Adhesive
SNR246MercaptanFast≥140
------A-400---
SNR236TMercaptanMedium
1000-1500---

233

 243

M-130L

Y30Goods with highly loading, adhesive, conveyor belts, hoses, rubber seals, some hard goods.
SNR237TMercaptanMedium
1800-3600---

233

 243

M-130HY30H




M-41

1. Hoses

image.png  Hoses for high pressure and ultra-high pressure, medium pressure and low pressure

image.png  Oil and fuel hoses

image.png  Brake hoses

image.png  Hoses for use in the petroleum industry

2. Cables and wires

image.png   Rubber-sheathed flexible cables

1.jpgimage.png  Trailing cables 

image.png   Welding cables

image.png   Flat flexible power and control cables 

image.png  Flat flexible lighting cables

3. Conveyer and transmission belts

Powder transmission belts for the automotive and general industry

image.png  Timing belts

image.png  Poly-V-belts

image.png  Raw-edge V-belts

image.png  Jacketed V-belts

Conveyer belts with steel cord and textile reinforcement for industries

4. Molded parts

image.png  Bellows and dust capsimage.png  Axle boots2.jpg

image.png  Elbows

image.png  Seals

image.png  Spring elements

image.png  Dampers and bearings

image.png  Windshield wiper blades

5. Stealing strips

image.png  Solid and microcellular rubber sealing strips

image.png  Expansion joint seals

6. Form

image.png  Foam rubber sheet for wet suits

image.png  Corthopedic braces