|Place of Origin:||Guangdong,China|
|Minimum Order Quantity:||100 USD|
|Price:||0.002 ~ 2 usd / pcs|
|Packaging Details:||PE inside , Carton Outside|
|Delivery Time:||7-45 work days|
|Payment Terms:||L/C, L/C,Paypal|
|Supply Ability:||30000000 PCS / Month|
|Color:||Red , Yellow , Orange ,Blue , Green , Purple Ect||Hardness:||10 ~ 85 Shore|
|Temprature:||-40 ~220 ℃||Standard:||AS568|
Coloured Silicone O Rings Food Grade Sunlight Resistant Standard / Nonstandard
Silicone O ring
ASTM D-2000 classification: FC,FE,CE
Military(Mil-Std417) : TA
Chemical Definition : polysiloxane
Durometer-Range (Shore A) : 30-90
Tensile Range (P.S.I) : 200-1500
Elongation (Max.%) : 700
Compression Set: Good
Resilience- Rebound: Good
Abrasion Resistance: Fair to poor
Tear Resistance: poor
Solvent Resistance: poor
Oil Resistance: Fair to poor
Temperature Usage ( °C ) : -150~450
Aging Weather- Sunlight:Excellent
Adhesion To Metals: Good
1. after modulating formula, the tensile strength up to 1500 psi, and tear resistance up to 88 LBS.
2. Good elasticity and good compression deformation.
3. good resistance to neutral solvent.
4. excellent heat resistance.
5. With excellent cold resistance.
6. with excellent resistance to erosion of ozone and oxides .
1. Does not recommend is suitable for most concentrated solvent, oil, concentrated acid after dilute sodium hydroxide
Appliance: electric kettle,electric iron,Microwave owen,etc
Keypad,heat shock in DVD,cable connector
Material Description: Silicone rubbers are widely used in industry and there are multiple formulations. Silicone rubbers are often one or two part polymers, and may contain fillers to improve properties or reduce cost. Silicone rubber is generally non-reactive, stable, and resistant to extreme environments and temperatures from -55 °C to +300 °C while still maintaining its useful properties. Due to these properties and its ease of manufacturing and shaping, silicone rubber is used in silicone gaskets, seals and orings and can be found in a wide variety of products such as:
Silicone’s temperature tolerance maintains a lack of brittleness below freezing and excellent tolerance of temperatures in excess of 150 °C (302 °F).
Silicone o rings, gaskets and seals are Resistant To: High/Dry Heat, Fungus, Sunlight, Ozone, and Weathering.
Do not use with: Fuels, silicone, and petroleum based oils, acids
Temperature Range: -75o -/+450o F / -59.5o -/+232o C
Standard Hardness: 70 durometer Shore A
Hardness Range: 30 - 80 Durometer Shore A
Standard Colors: Rust/ Orange.
Also available in Translucent. Custom colors also available.
ASTM D1418 Designation: MQ, PMQ, VMQ, PVMQ
ASTM D2000/SAE J200 Type, Class: FC, FE, GE
Apple Compound Designation: SL
Standard Color: Red
Key Use(s): Static seals in extreme temperature situations. Seals for medical devices, compatible with FDA regulations.
Standard Compound: -40° to +220°C
Hardness (Shore A): 10 to 85
Features: Phenyl (PVMQ) based silicones can perform to -85°F. New polymers can take short term to 600°F.
Limitations: Generally, low abrasion and tear resistance, and high friction characteristics preclude silicones from effectively sealing some dynamic applications. Silicones are also highly permeable to gases and are generally not recommended for exposure to ketones (MEK,acetone) or concentrated acids.
Test Method:With reference to US FDA 21 CFR 177.2600.
|Simulant Used||Time||Temperature||Max.Permissible Limit||Result of 001||Comment|
|Distilled water||7.0hr(s)||Reflux temperature||20mg/sq.in||<0.5mg/sq.in||PASS|
|Succeeding Extraction||2.0hr(s)||Reflux temperature||1mg/sq.in||<0.5mg/sq.in||PASS|
|Succeeding Extraction||2.0hr(s)||Reflux temperature||4mg/sq.in||<0.5mg/sq.in||PASS|