Water-Proof Silicone Rubber Sponge Sealing Gasket Insulated Seal Rings for Light and Appliance

• Material: SIL
• Application: Electrical Devices
• Type: Water-Proof
• Performance: Vapor and Dust
• Shape: O-Ring
• Standard: Nonstandard
• Transport Package: PE Bag + Standard Carton
• Specification: 1000 pcs/carton
• Trademark: Tenchy
• Origin: China
• Production Capacity: 10, 000 PCS/Day

Product Description

Foam Silicone Seal Gasket

Foam silicone is lightweight products derived from liquid silicone ingredients that are cast onto a liner and cured in an oven. Silicone foam materials are engineered for high performance applications where function is paramount. Silicone foam products have excellent performance properties such as low compression set, high temperature stability, low temperature flexibility, flame rated, and environmental sealing.


Physical properties
 

1. Wide operating temperature - silicone foam has a temperature range of -76°F to 392°F (-60°C to 200°C).
2. Water sealing - the closed cell products offer good water sealing with relatively low compressive forces.
3. Dust sealing - open cell and closed cell products can be used for sealing out dust with low compressive forces.
4. Compression set resistance - silicone foam offers excellent compression set resistance (ability to rebound to original thickness).
5. UV and ozone resistance - silicone products have excellent UV and ozone resistance due in part to their inorganic backbone. This provides long term performance.

Basic Information
Production process: silicone foam
Material: silicone
Size: customized
Color: black, red, blue, white, gray, green, transparent (other colors can be produced on request)
Non-toxic and tasteless, in line with RoHs Reach requirements
Surface type: smooth or frosted
Sample period: 1-2 days(3-8 days for customized products)

Application

Telecommunications outdoor enclosures (environmental gasket)
Portable data acquisition (gasketing and cushioning)
Indoor lighting (dust gasket)
Outdoor LED lighting (weather gasket, long life)
Asset tracking (environmental gasket, low compression set)
Instrumentation (vibration dampening)
Electronics (touch screen gaskets, cushioning)
Low density silicone foams have open cell structure that may allow moisture to pass through the cell structure. Open cell silicone foam can be compressed to collapse the cells offering a water tight seal.

In contrast, higher density silicone foam products will have a higher proportion of closed cells compared with medium or low density grades. As with all gaskets, with the proper deflection, a good long term weather seal can be achieved.

Silicone foam products are manufactured from platinum cured, liquid silicone rubber. The raw compound is expanded and dispensed on a continuous casting line, then heat cured. The expansion process is controlled to create a range of products having different densities, softness/firmness and cell structures. Silicone foam materials typically have a smooth skin on one or both sides due to the casting process.

Open cell silicone foams are widely used for cushioning, dust sealing or light water sealing. Closed cell silicone foam materials are used for outdoor gaskets, wash-down gaskets and resilient cushioning pads. Expanded silicone foam products have a firmness range from Ultra Soft to Extra Firm, allowing engineers to select the best product for their application.




Specification
 

No.	Testing Items	Unit	Standard	Limit	Actual Measurement
1	Appearance	/	/	Red/Grey	Red/Grey
2	Density	g.cm^3	GB/T533-2008	0.50±0.1	0.386
3	Hardness(ShoreC)	°	GB/T 531.1-2008	30±5	20
4	Compression set  100ºC×22h,compression 50%	%	ASTM D 1056, 100ºC@50%	≤ 10.0	≤ 9.4
5	Tensile strength	MPa	GB/T 528-2009	≥ 0.7	≥ 0.90
6	Elongation at break	%	GB/T 528-2009	≥ 250	≥ 286
7	Tear Strength	kN/m	GB/T 529-2008	≥ 3.0	≥ 3.47
8	ROHS	/	ROHS	Qualified	Qualified