Polyester Tapes

Technical Data

June, 2011

Product

Description

3M™ Polyester Tapes 8901, 8902, and 8905 are all made with strong polyester backing and

silicone adhesive, allowing them to be used in applications requiring high temperatures or

adhesion to silicone treated surfaces. This tape family offers a range of backing thickness to

accommodate application needs from thin tape for splicing to a thicker, stronger tape from

pulling through flashing or multiple layers.

Product

Construction

Backing

Adhesive

Color

Standard Roll Length

Polyester

Silicone

Blue

72 yds. (65.8 m)

Typical Physical

Properties

Note: The following technical information and data should be considered representative or

typical only and should not be used for specification purposes.

3M™ Polyester Tapes

ASTM

8901

8902

8905

Test Method

Adhesion to Steel:

29 (31)

37 (40)

26 (28)

oz./in. (N/100mm)

D-3330

Tensile Strength :

26 (455)

46 (805)

110 (1920)

lbs./in. (N/100mm)

D-3759

Elongation at Break:

115

100

115

%

D-3759

Total Thickness:

2.4 (0.061) 3.5 (0.08)

6.5 (0.16)

mils (mm)

D-3652

Backing Thickness:

0.9 (0.02)

2.0 (0.05)

5.0 (0.12)

mils (mm)

D-3652

Temperature Use Range: 400 (204)

400 (204)

400 (204)

Up to °F (°C)

Features

• Polyester films offer excellent thermal, abrasion, and chemical resistance while

maintaining their flexibility.

• Silicone adhesives offer high heat resistance compared to many rubber and acrylic

adhesives, reducing failure due to softening, oozing and adhesive transfer.

• Silicone adhesives adhere well to tough-to-stick-to surfaces like silicone liners and

fixtures coated with mold release.

• Removes cleanly from stainless steel, anodized aluminum and glass after a 5 hour.

bake cycle at 350°F (177°C).

• Variety of tape thicknesses offered allows uses for multiple applications.

Application Ideas

• Splicing of silicone treated webs.

• Masking parts for powder coat painting

• Holding parts or sealing vacuum bags during processing

• Masking edges of overlap seams in metal bonding process where excess adhesive flows

onto tape. Minimizes clean-up on tape removal.