Key facts
- Brand
- 3M
- Model
- 851 Greenback
- Category
- Other Electronics
- Documents
- 2
- Languages
- EN
- Last added
- 2012-04-09
Start here
3M 851 Greenback Printed Circuit Board Tape Product Data Sheet
The 3M 851 Greenback Printed Circuit Board Tape is a translucent green polyester film backed with a special blend of silicone and rubber adhesive. It is designed for masking, splicing, and protecting printed circuit boards during soldering and plating processes.
Key features include a 100 µm thickness, 12‑month shelf life when stored at 21 °C (70 °F) and 50 % RH, adhesion of 2.7 N/10 mm to stainless steel, tensile strength of 36.8 N/10 mm, 56 % elongation at break, and a maximum service temperature of 90 °C. The tape reduces stretch, undercutting, and adhesive transfer, helping to lower reject rates and labor costs.
3M 851 Greenback specifications
| Adhesive Type | Special blend of Silicone and Rubber |
|---|---|
| Backing | Transparent polyester |
| Thickness | 100 um |
| Tape Colour | Translucent green |
| Shelf Life | 12 months at 21 °C and 50 % RH |
| Adhesion to Stainless Steel | 2.7 N/10mm |
| Tensile Strength | 36.8 N/10mm |
| Elongation at Break | 56 % |
| Maximum Temperature | 90 °C |
Source: 3M 851 Greenback Printed Circuit Board Tape Product Data Sheet
All 3M 851 Greenback documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the recommended storage condition for the 3M 851 Greenback PCB Tape?
Store the tape in its original carton at 21 °C (70 °F) and 50 % relative humidity for up to 12 months.
From: 3M 851 Greenback Printed Circuit Board Tape Product Data Sheet
What type of adhesive is used in the 3M 851 Greenback PCB Tape?
It uses a special blend of silicone and rubber adhesive.
From: 3M 851 Greenback Printed Circuit Board Tape Product Data Sheet
What is the shelf life of the 851 Greenback tape?
It lasts 12 months from the date of despatch when stored in the original carton at 21 °C (70 °F) and 50 % relative humidity.
What is the maximum temperature the tape can withstand?
The tape can be used up to a maximum temperature of 90 °C.