Silicone rubber materials such as food grade Liquid silicone rubber (LSR) and High consistency rubber
Product description
Liquid silicone rubbers of the RUI-HE RH6250-50
series are paste-like, easily-pigmentable twocomponent compounds with short curing times.
Their vulcanizates are noted for their high transparency and excellent mechanical and electrical properties.
When heat stabilizers are added, the products can be used within a temperature range of -55 °C to +230 °C,
and for a short time up to +300 °C.
Application
These grades are particularly suitable for the economical production of large series of injectionmoulded articles.
Parts made from RUI-HE RH6250-50 can be used for technical and pharmaceutical applications.
These articles are also suitable for use in conjunction with foodstuffs.
Processing
The A and B components are delivered ready to use in 20 and 200 litre drums.
With adequate metering equipment, they can be pumped directly from the Original containers into the injection
molding machine and mixed by a static mixer.
The mixing ratio is 1 : 1. At room temperature, mixtures of A and B components have a pot life of at least three days.
Storage
The 'Best use before end' date of each batch is shown on the product label.
Storage beyond the date specified on the label does not necessarily mean that the product is no longer usable.
In this case however, the properties required for the intended use must be checked for quality assurance reasons.
| Physical properties | Testing method | Unit | RH6250-40A/B | RH6250-50A/B | RH6250-60A/B | RH6250-70A/B | RH6250-71A/B |
| Appearance | Visual inspection | / | Transparent |
| Viscosity | DIN53019 | Pa.s | 1200 | 1200 | 1500 | 2000 | 2500/ |
| Hardness | GB/T 531.1 | Shore A | 40 | 50 | 60 | 65 | 70 |
| Density | GB/T 533 | g/cm3 | 1.11 | 1.12 | 1.12 | 1.13 | 1.13 |
| Resilience | GB/T 1681 | % | 55 | 65 | 60 | 55 | 55 |
| Tensile Strength | GB/T 528-2009 | Mpa | 7.5 | 9 | 9.5 | 9.5 | 9 |
| Elongation | GB/T 528 | % | 550 | 550 | 500 | 400 | 350 |
| Tear Strength | GB/T 529 | KN/m | 25 | 30 | 35 | 30 | 25 |
| Tensile Set | GB/T 528 | % | 2.6 | 1.7 | 1.7 | 0.8 | 0.8 |
| Linear shrinkage | CGB-T14235.4 | % | 2.5 | 2.6 | 2.6 | 2.5 | 2.5 |
CONTACT US
For more than 15 years, OEM designers and maintenance and materials engineers around the world have trusted
the Rui-he brand for performance and expertise to solve or prevent sealant challenges.
Rui-he has sales offices, manufacturing sites, and science and technology laboratories – and a network of more than 200.
To learn more about our extensive product and service offerings, order samples, visit lsrliquidsiliconerubber.com
email: chenp8008@@gmail.com or call at(wechat//whatsapp) +86 136 6016 5505.
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Food Grade LSR Liquid Silicone Rubber / High Consistency Liquid Mold Making Rubber Images
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