L-T-80 Tape, Pressure-Sensitive Adhesive \(Aluminum-Backed\)This specification establishes the requirements for an aluminum foil backed pressure-sensitive adhesive tape designed for use in sealing applications where the properties of good weather resistance, reflectivity, and moisture vapor transmission resistance are required.

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L-T-80C

6.3 Storage. The tape should be stored in the original container, preferably in a cool location. It should

not be stored in close proximity to steam pipes, radiators, or other sources of heat. Storage conditions of

approximately 70o F and 40 to 50 percent relative humidity are considered optimum (see PPP-T-680).

Since the adhesive of the tape may lose some of its initial quality with increasing age, purchases should

be adjusted where possible to avoid storage for more than six months.

6.4 Test equipment. Test dishes for water-vapor transmission tests and metal test panels may be

obtained from the Pressure-Sensitive Tape Council, 1201 Waukegan Road, Glenview, Illinois 60025.

6.5 Subject term (key word) listing.

Aluminum

Backing

Moisture vapor transmission resistance

Reflectivity

Release liner

Sealing

Weather resistance

6.6 Changes from previous issue. Marginal notations are not used in this revision to identify changes

with respect to the previous issue due to the extent of the changes.