Rubber Washer, known as silicone rubber seal, silicone rubber gasket, silicone rubber sheet etc, which can be categories into rubber plate washer, rubber O ring washer, rubber belleville washer, rubber spherical washer, rubber shoulder washer etc, and made of elastomeric silicone rubber like neoprene, VMQ, EPDM, Viton, Liquid silicone rubber etc. Washer is also made of plastic, metal, copper. Some washers made of rubber plastic overmolding washer, rubber metal overmolding washers, liquid silicone rubber overmolding washer, rubber backed adhesive washer etc.
Rubber Backed Adhesive washer is also called 3M backed adhesive tape + silicone rubber washer
Silicone Rubber 3M Tape Adhesive Backed Washer
Silicone 3M Tape Gasket is in aim to improve the water-proof and dust proof function of electronic products. Generally using IPxx code to identify the waterproof grade and anti-dust grade. Such as IP 55, IP56, IP57, IP 65, IP66, IP67 etc.
Product Specifications
Silicone 3M Tape Classifications
| Acrylic Foam Tapes | Transfer Tapes | Double Coated Tapes |
| 3M VHB | 3M 467 | 3M 9415 |
| 3M DC2008 | 3M 927 | 3M 9425 |
| 3M DC2011 | Adchem 728 | Tesa 4959 |
| 3M PT1100 | Re-Closable Fasteners | Tesa 4965 |
| 3M EX4011 | 3M Dual Lock | Tesa 62855/56 |
| Adchem 728 | VELCRO hook and loop | Adchem 254 |
Silicone 3M Tape Gasket Basic Information
1. Silicone 3M Tape Gasket Function: Products Sealing.
2. Silicone 3M Tape Gasket Common Materials
NR, NBR, EPDM, HNBR, Silicone, SBR, TPU, PTV, CR, XNBR, LSR (Liquid Silicone Rubber, LSR elastosil) etc.
3. Silicone 3M Tape Gasket Special Demands
1) IP grade (dust/water proof grade, 3M gumming tape),
2) Anti-Fire grade (flame retardant) (UL94 VO),
3) Medical / food standards(FDA PTFE), (If really need up to completely food/medical standard, the best choose LSR) SGS reports etc.4) Silicone Glue Gasket Hardness: 30-85 shore A. (Hardness Tolerance: +/- 5 shore A)
5) Silicone 3M Tape Gasket Sizes Tolerance +/-0.005mm - +/-0.3mm
6) Silicone 3M Tape Gasket Working Temperature: -40℃- 230℃
Product Pictures
Silicone 3M Tape Gasket Main Applications
The application of Silicone 3M Tape Gasket is rapidly growing in the industrial manufacturing market. Such as Smart Phone products, Electronic Products, Medical Products, etc.
Silicone 3M Tape Gasket Technological Processes
1. Making Mold Tooling first
2. After finishing mold, producing silicone rubber samples (about 5-10 molds) for test.
Test each cavity silicone rubber sample by 3D projectors if dimensions are within tolerances. Some precision samples need to cut (cutting cross section) which is easy to test the sizes and designs.
3. If dimensions are ok, sending the whole piece of silicone products to factory for dealing with silicone glue.
Notes:
1. If big silicone rubber products, burring firstly, and then deal with silicone glue.
If small silicone rubber parts, generally dealing with silicone glue firstly, and then choose fixture tooling (cutting/punching die) to burring. Or removing the big barbs, and then deal with the silicone glue, finally fixture tooling (cutting/punching die) to burring.
Silicone 3M Tape Process
1. Paste double sided silicone 3m tape with the anti-adhesive sides of anti-adhesive paper;
2. Cutting the inner round holes by cutting die;
3. Silicone products are coated with silica gel treatment agent; (Notes: silica gel treatment agent should be even/ well-distributed; and should not coat on the surface of
silicone products)
4. Rightly placed stick double sides silicone 3m tape, the surface of 3m tepe should be even. (Notes: should not be a little off; and should not have bubble.)
5. Next Die Cutting for burring
6. After finishing die cutting, check if have less materials or not clear cutting.
7. Test the finished products by 3D projects and amplification instrument
8. Before packaging, check the silicone glue one by one.
