425 Aluminium Foil Tape

(No. 427 Linered Version)

Product Data Sheet

Updated

: March 1996

Supersedes

: October 1993

Product Description

A dead soft aluminium foil

combined with a special

transparent synthetic acrylic

adhesive makes this

the best general purpose foil

product available. No's. 425

and 427 have U.L. approval

Class "L" for

low flammability. Can be

used indoors or out for long

term applications.

Physical Properties

Not for specification purposes

Adhesive Type

Acrylic

Backing

Dead soft aluminium.

110 µm

Release Liner

(No. 427 only)

Easy release paper.

Release Liner

80 µm

Backing Thickness

80 µm

Weight

.0068 kg/m/25mm

Tape Colour

Silver (shiny)

Shelf Life

12 months from date of despatch by 3M when stored in the

original carton at 21°C (70°F) & 50 % Relative Humidity

Performance

Characteristics

Not for specification purposes

Adhesion to Stainless

5.9 N/10mm

Tensile Strength

ASTM D-3759

53.7 N/10mm

Elongation at Break

ASTM D-3759

7 %

Temperature Range

Maximum

Minimum

+150 °C

-54 °C

Water Vapour

Transmission Rate

1.55 g water/m² 24hr.