U616A - Unsupported Adhesive Transfer

Scapa Tapes North America

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FEATURES

Exeptionally high tack and peel
High adhesive mass provides excellent gap filling properties
Excellent resistance to environmental extremes
Exhibits excellent adhesion to ether and ester foams
Peel adhesion (PSTC 1 Mod./180°) to untreated polypropylene; 20 min. @ RT = 85 oz/in
Holding power (PSTC 7 Mod./178°) 2.2 psi (1x1x1000g) @ RT > 24 hours
Humidity resistance % peel retention after 1 week @ 100°F (38°C)/100% RH = 100%
Water resistance % peel retention after 24 hour soak = 100%

ADVANTAGES

APPLICATIONS

Bonding of low surface energy plastics
Lamination to EPDM rubbers and urethane foams
Component assembly

MARKETS SERVED

Industrial
Automotive
Gaskets

COLORS

GENERAL INFORMATION

Unifilm® U616A is a 5.0 mil, unsupported adhesive transfer. It is primarily used for bonding of low surface energy plastics, lamination to EPDM rubbers and urethane foams and component assembly.

PRODUCT CONSTRUCTION

	Type	Mil Thickness

Backing	None
Adhesive (unwind)	Acrylic	5.00
Thickness (total)		5.00

PRIMARY PHYSICAL PROPERTIES

	Unwind Side	Liner Side

Adhesion-to-Steel - 180° Peel	149.00 oz/in	149.00 oz/in
Adhesive Activation	Pressure
Testing Info: Initial peel adhesion to stainless steel (PSTC 1 Mod./180°) 20 min. @ RT; peel adhesion to untreated polypropylene 20 min. @ RT; Holding power (PSTC 7 Mod./178°) 2.2 psi (1x1x1000g) @ RT; Humidity resistance % peel retention after 1 wk. @ 100°F (38°C)/100% RH; Water resistance % peel retention after 24 hour soak

SECONDARY PHYSICAL PROPERTIES

Chemical Resistant

Yes

THERMAL / ELECTRICAL PROPERTIES

Minimum Application Temperature	65°F
Minimum Service Temperature	-50°F
Maximum Short-Term Temperature	200°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.