Crosslinking and Vulcanizing Agents
RubberVulcanization is the name originally given to the process Charles Goodyear discovered by mixing sulfur with natural rubber and subjecting it to heat to transform a plastic substance into an elastic substance. Years later it was learned that the sulfur actually crosslinks the chains of the rubber molecules. Eventually chemicals other than sulfur were used to crosslink elastomers, resulting in the term crosslinking to become synonymous with vulcanization. Vulcanization is normally achieved with time and temperature activation of specific chemicals which react with polymeric materials, producing a crosslinked network of molecular chains with visco-elastic properties. Sulfur-bearing accelerators make the sulfur-vulcanization process safer and more efficient. Crosslinking is also achieved by organic peroxides, which may be made more efficient thru the use of coagents.
Accelerator
VANAX 829 Powder is a high performance thiadiazole used to crosslink chlorinated polyethylene (CPE), which possesses good heat and solvent resistance suitable for many hose, tube, and duct applications, as well as the abrasion and environmental resistance required by Wire & Cable jacketing.
Crosslinking Agent
A blocked diamine crosslinking agent used in fluoroelastomers (FKM), polyacrylic (ACM), ethylene-acrylic (AEM), and epichlorohydrin (ECO) elastomers. FDA Compliant.
Crosslinking Agent
A phosphonium salt used in fluoroelastomers (FKM) and polyacrylic polymers (ACM).
Crosslinking Agent
A blocked diamine crosslinking agent used for very safe processing of fluoroelastomers (FKM), polyacrylic (ACM), ethylene-acrylic (AEM), and epichlorohydrin (CO-ECO) elastomers.
Crosslinking Agent
An alicyclic amine salt used as a curing agent mainly for fluorelastomers (FKM). For its safety in processing, it can be positioned between VANLINK 1 and VANLINK 3. FDA Compliant.
Crosslinking Agent
A coagent for peroxide curing of many elastomer types (EPDM, FKM, CPE, etc). It improves heat resistance, physical properties and compression set. Yellow liquid at 30°C and white solid at 25°C.
Crosslinking Agent
A coagent for peroxide curing of many elastomer types (EPDM, FKM, CPE, etc). VANLINK 7-50 is a 50% active powder version of VANLINK 7.
Crosslinking Agent
A coagent for peroxide curing of many elastomer types (EPDM, FKM, CPE, etc). VANLINK 7-70 is a 70% active powder version of VANLINK 7.
Crosslinking Agent
A cationic surfactant used as an accelerator for ACM & AEM and as an additional accelerator for FKM. Also used as an adhesion promoter in several elastomers and a performance improver for some TPEs.
Accelerator
Curing agent for fluoroelastomers. VANAX® FC-20 Granules contains a phosphonium based accelerator for use in bisphenol cure systems.
Accelerator
Curing agent for fluoroelastomers. VANAX® FC-30 Granules contains the bisphenol AF crosslinking agent for use in bisphenol cure systems.
Accelerator
Curing agent for fluoroelastomers. VANAX® FC-50 Granules is a combined bisphenol-based vulcanizing agent and accelerator curative system optimized for fast curing and reduced mold fouling.