Saret® and crosslinking coagents
Sartomer offers a number of liquid acrylic coagents with varying functionalities for use in peroxide curing of elastomers. Peroxide curing of elastomers is an alternative to sulfur vulcanization that offers superior heat-aged performance. Curing with peroxide alone, however, is inferior to sulfur vulcanization in areas such as wear resistance and dynamic properties.
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| Name | Description | Chemistry | Functionality | Application | Performance |
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| Name | Chemistry | Functionality | Application | Performance | |
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Saret® SR500
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Crosslinking Coagent | Monomer | 3 |
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Key benefits
The addition of crosslinking coagents with the peroxide overcomes these deficiencies, while maintaining the improvement in heat-aged performance. With appropriate coagent selection, improvements in final properties can be realized, including:
- Scorch protection
- Low compression set
- Temperature stability
- High elongation
- High modulus
- Wide hardness range
- Modulus/compression set
- Low mooney viscosity
- High tensile strength
- Good hot tear strength
Saret® coagents are available as proprietary mixtures with radical-scavenging retarders that provide prolonged scorch safety, while maintaining cure rate and increasing crosslink density. These products are compatible with a variety of elastomers, including EPDM, NBR, CPE, PE, etc.
| Product code | Chemical name | Functionality | Product description |
|---|---|---|---|
| Saret SR519 HP | High Performance Trifunctional Coagent | Trifunctional | Saret SR519HP coagent is a trifunctional, low color, low odor, low staining, scorch retarding coagent that contains non-nitroso inhibitor packages. When incorporated into peroxide cure natural and synthetic rubber systems, the product improves mechanical and performance properties. |
| SR297 F NS | 1,3-Butylene Glycol Dimethacrylate | Difunctional | SR297 F NS, 1,3-butylene glycol dimethacrylate, is a difunctional monomer offering good stain resistance and solvency. |
| SR517 NS | Crosslinking Agent (Trifunctional) | Trifunctional | SR517 NS coagent is a trifunctional, low color,low staining, scorch retarding aid which contains non-nitroso inhibitor packages. When incorporated into peroxide cure natural and synthetic rubber systems, the product improves mechanical and performance properties. |
Geographic availability
Markets
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Automotive and transportation
- Elastomers
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Chemical and plastics industry
- Rubber manufacturing
Applications
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Belts
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Hoses