851 3M, 851 Datasheet - Page 2

• Manufacturer Part Number: 851
• Description: 851 PCB DISCS 3MM
• Manufacturer: 3M
• Series: 851r

Specifications of 851

• Colour: Transparent Green
• Length: 132m
• Storage Temperature Max: 27°C
• Storage Temperature Min: 16°C
• Coating Applications: Circuit Boards
• Shelf Lifetime: 1.5Yr
• Svhc: No SVHC (15-Dec-2010)
• Rohs Compliant: Yes
• Approval Category: IS0 9002
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Additional Product
Information
Application Techniques
Applications
3M is a trademark of the 3M Company.
Values presented have been determined by standard test methods and are average values not to be used for specification purposes.
Our recommendations on the use of our products are based on tests believed to be reliable but we would ask that you conduct your own tests to
determine their suitability for your applications.
This is because 3M cannot accept any responsibility or liability direct or consequential for loss or damage caused as a result of our
recommendations.
Specialty Tapes & Adhesives
3M United Kingdom PLC
3M House,
28 Great Jackson Street,
Manchester,
M15 4PA
Shelf life - important to
rotate inventory.
Low stretch polyester film
for machine, as well as
hand application.
Solvent clean-up of the
board is recommended to
facilitate subsequent
soldering.
For masking printed circuit
boards during solder
stripping and precious metal
plating of fingers.
FEATURES
Polyester backing.
Thick adhesive coating.
Specially designed
adhesive.
Customer Service :
Tel [phone]
Fax [phone]
Tape must be firmly
pressed down by equipment
with rubber covered rollers
or a rubber covered platen
press. Hand rolling usually
does not provide enough
pressure. A vivid outline of
the circuit leads indicates
adequate pressure was
used.
Splicing of silicone coated
papers.
ADVANTAGES
Reduces stretch and
recovery of tape and
associated uneven stop-off
line.
Reduces undercutting
because adhesive blocks
out solutions between
fingers.
Tape generally performs
better when no ovens are
used to heat tape and
boards.
Reduces adhesive transfer
to printed circuit board.
3M Ireland
3M House, Adelphi Centre,
Upper Georges Street,
Dun Laoghaire,Co. Dublin,
Ireland
© 3M United Kingdom PLC 1996
Date : March 1996
851 Greenback Printed Circuit
Board Tape
BENEFITS
Saves money by reducing
number of reject boards.
Saves money by reducing
reject boards.
Saves energy and labour
costs.
Saves money by reducing
clean-up time.
Customer Service :
Tel
Fax
[phone]
[phone]
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