Name: SiSiB® HR7251 Flame Retardant Silicone Rubber
Brand: Nanjing SiSiB Silicones Co., Ltd.
Price: 100 USD

Technical Data

Property and Unit	Specification	Test Method
As supplied
Appearance	White or black	Visual inspection
Plasticity Number, 1/100 mm	220-260	ISO 7323:2006
As cured
Density, g/cm³	1.35-1.40	ISO 2781:2018
Hardness, Shore A	50-60	ISO 48-4:2018
Tensile Strength, MPa	Min. 7.0	ISO 37:2024
Tear Strength, kN/m	Min. 20	ISO 34-1:2022
Elongation at Break, %	Min. 400	ISO 37:2024
Compression Set, 180°C/22 h, %	Max. 30	ISO 815-1:2019
Rebound Resilience, %	Min. 50	ISO 4662:2017
Volume Resistivity, Ω·cm	Min. 1.0 × 10¹⁵	IEC 62631-3-1
Flame Retardancy at 2 mm	Pass	UL 94

Note: Unless otherwise specified, the cured properties were measured on test specimens molded and cured at 170°C for 6 minutes. These values are typical and are not intended for use as specifications.

Application

SiSiB® HR7251 is suitable for molded silicone rubber components used in household appliances and automotive applications where good mechanical properties and flame retardancy are required.

Packing and Storage

SiSiB® HR7251 is supplied in 25Kg carton or 500Kg bulk carton box.

Store SiSiB® HR7251 in a dry place below 30°C. Protect the product from rain, moisture and direct sunlight, and keep the packaging securely closed.

In the original unopened packaging, SiSiB® HR7251 has a shelf life of 6 months from the date of manufacture.

Documents

SiSiB® HR7251 Technical Data Sheet

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