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Insulators, lightning arresters, solid-insulated pole-mounted switchgear, instrument transformers, and reactors

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Silicone Material Solutions for Smart Grids

Properties: Both liquid silicone rubber and solid silicone rubber exhibit excellent hydrophobicity, outstanding resistance to high and low temperatures, superior weatherability, and remarkable resistance to electrical tracking. They can be used continuously over a temperature range of –40°C to 200°C.

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Phone:020-36896519

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Features:

Liquid silicone rubber and solid silicone rubber exhibit excellent hydrophobicity, outstanding resistance to both high and low temperatures, superior weatherability, and remarkable resistance to electrical tracking. They can be used continuously over a temperature range of –40°C to 200°C.

Applications:

It is suitable for the insulation applications of power equipment such as insulators, surge arresters, encapsulated pole-mounted bushings, and reactors.

Test Items	Test Method	Unit	RH7270-40V	RH7270-50W	RH7360-40W	RH7360-50W	RH7270-40U
Appearance	Visual estimation	/	Translucent/Gray	Translucent/Gray	Gray	Gray	Transparent/Transparent
Viscosity	DIN53019	mPas	80,000	80,000	——	——	18000
Hardness	GB/T531.1	Shore A	45±2	45±2	40±3	50±2	36±3
Density	GB/T533	g/cm3	1.2±0.01	1.2±0.01	1.3±0.01	1.3±0.01	1.10±0.01
Tensile strength	GB/T528	MPa	≥5.0	≥5.0	≥6.0	≥5.0	≥6.0
Elongation at break	GB/T528	%	≥300	≥300	≥400	≥300	≥300
Tear strength	GB/T529	kN/m	≥10	≥12	≥15	≥12	≥15
Permanent deformation upon rupture	GB/T528	%	≤3.2	≤3.2	≤3.2	≤3.2	≤3.2
Linear shrinkage rate	GB-T14235.4	%	≤2.5	≤2.5	≤2.5	≤2.5	≤2.5
Dielectric breakdown voltage	GB/T1408.1	kV/mm	≥20	≥22	≥22	≥22	≥22
Volume resistivity	GB 1410	Ω∙cm	1×10 ¹⁴	1×10 ¹⁴	1×10 ¹⁴	1×10 ¹⁴	1×10 ¹⁵
Dielectric constant (50 Hz)	GB 1409	/	2.8-3.2	2.8-3.2	2.8-3.2	2.8-3.2	2.8-3.2
Dielectric loss (50 Hz)	GB 1409	/	0.005-0.007	0.005-0.007	0.005-0.007	0.005-0.007	0.005-0.007
Tracking resistance performance	GB/T 6553	/	1A3.5	1A4.5	1A4.5	1A4.5	1A3.5
Application areas			Liquid adhesive, current transformers, insulators, and surge arresters		Solid glue, instrument transformer insulators, surge arresters		Solid-insulated pole, reactor dip coating

Note:

Curing conditions: After thoroughly mixing the liquid adhesive components A and B in a 1:1 ratio, mold‑press at 175°C for 5 minutes using a 140 mm × 120 mm × 2 mm mold.
Solid adhesive: vulcanized under a 25×25 mm mold at 175°C for 5 minutes.

This data is for reference only; the specific material properties and molding process parameters shall be subject to those provided by our Technical Department.

Packaging Specifications

Suitable for 200 kg/drum and 20 kg/drum.

Precautions

Store at room temperature in a dry, well-ventilated indoor location, away from direct sunlight. Shelf life: 12 months.
During storage and use, contact with compounds containing nitrogen, phosphorus, sulfur, tin, or lead can poison the platinum catalyst, thereby impairing the sulfidation process.

Keywords:

High-resilience molded rubber

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Contact phone number:

020-36896519

Company email:

1541901416@qq.com

Huadu Company Address:

1st Floor, Building A2, Zone A, Meiwang Science and Technology Park, Guangzhou Airport Economic Zone (No. 6, Guangtang South Street, Xinya Subdistrict, Huadu District)

Zhaoqing Factory Address:

No. 33-3, Xin’an Avenue, Zhaoqing New District, Dinghu District, Zhaoqing City

Technical Support: Zhongqi Cross-border, Guangzhou

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