691 - Bag Sealing Tape

3M

E-Mail this datasheet

FEATURES

Std Roll Length: 180.00 yards
Pressure-sensitive hot melt rubber-resin adhesive
Scotchpro™ (BOPP) biaxially oriented polypropylene film backing
Comes in a variety of colors
Adheres instantly to most film surfaces
Heavy-duty, conformable backing with high edge tear and split resistance
Complies with the environmental considerations of ASTM D1974-92
Tensile strength - cross direction = 60 oz./in.
Standard widths: 3/8" (9.53mm)
Custom widths available upon request
Core size (ID): 3" (76.2mm)

ADVANTAGES

High performance ensures reliable closures
Manufactured in an ISO 9002 certified facility

APPLICATIONS

An extensive line of application equipment including manual dispensers and semi-automatic and fully automatic equipment is available
Application of #691 is most easily accomplished at room temperature
At colder temperatures, approaching 32°F, the adhesive becomes more firm
Once applied, #691 performs well throughout the normal temperature ranges typically encountered by packaged products in shipping and storage environments

MARKETS SERVED

Plastics
Industrial

COLORS

Blue
Green
Red
White
Yellow

GENERAL INFORMATION

Scotch 691 is a 2.5 mil. high performance tape used for bag sealing. This product has a heavy duty, conformable backing and the most consistent pressure-sensitive hot melt adhesive system available. Store in a clean dry place between the temperatures of 40°F to 80°F and 40-50% relative humidity are recommended.

PRODUCT CONSTRUCTION

	Type	Mil Thickness

Backing	BOPP - Biaxially Oriented Polypropylene	1.60
Adhesive (unwind)	Rubber	0.90
Thickness (total)		2.50

PRIMARY PHYSICAL PROPERTIES

	Unwind Side	Liner Side

Adhesion-to-Steel - 180° Peel	50.00 oz/in
Adhesive Activation	Pressure
Adhesive Thermal Conductive	No
Tensile Strength	30.00 lbs/in
Elongation Percent	160.00%
Testing Info: Peel Adhesion: ASTM D3330; Tensile: ASTM D3759; Elongation: ASTM D3759; Thicknesses: ASTM D3652

SECONDARY PHYSICAL PROPERTIES

THERMAL / ELECTRICAL PROPERTIES

Minimum Application Temperature	50°F
Minimum Service Temperature	0°F

The physical properties listed are typical values and are not to be considered as specifications. Our suggestions for use are based on tests we believe to be reliable. However, the purchaser must carry out their own tests to determine the suitability of the product for their internal use. Information is given in good faith, but without warranty.
It is essential, as with all pressure-sensitive tapes, that the surface to which the tape is applied be clean, dry and free of grease and oil.
Shelf life from date of manufacture is based on the product being stored at 70°F(21°C) / 50% relative humidity out of direct sunlight.
Specification compliance is dynamic and should only be used as a general guide. Always confirm that the tape you are interested in currently complies with all specification requirements. Please verify that the product number that you select is available in the proper size and color to meet your specification.