Automobile Silicone Rubber Boot , conneting Spark Plug ,  High / Low Temperature Tolerance
 
 
Applications:
	- used in auto engine, a high voltage ignition system
 
 
Strength of product:
	- Product has no smell, health for people.
 
	- Great heat resistance, cold tolerance, and dielectric properties
 
	- Long life: be able to use no less than 50,000 km or 3 years
 
	- Based on complete die processing equipments, sheaths can be designed and developed according to customer’s requirements in a short time. 
 
 
Product Basic features:
	- Color: Black 
 
	- Material: Silicone rubber
 
	- Withstand voltage: ≥30KV
 
	- Usage temperature: -20℃-155℃
 
	- Burr of the parting lines: ≤0.5mm
 
	- Inner diameter: φ15±0.5mm
 
	- External diameter: φ34±0.5mm, φ35.5±0.5mm (max)
 
 
Properties of raw material:
	- Shore-A hardness: 55±5A
 
	- Elongation at break: ≥300%
 
	- Tear strength: ≥15N/mm
 
	- Dielectric strength: ≥20KV/mm
 
	- Tensile strength: ≥6N/mm2
 
	- Tensile deformation: ≤20%
 
	- Density: 1.17±0.02 g/cm3
 
	- Withstand voltage 18KV for 30minutes: NO breakdown 
 
	- Surface resistance: ≥1011Ω
 
	- Ageing resistance: 155±2.5℃X168h,Without any cracking