3M ? Glass Cloth Electrical Tape 89
Typical Properties
Data is not for specifications. Values are typical and should not be considered minimum or maximum.
Properties measured at room temperature 73° F (~ 23° C) unless otherwise stated.
Physical
Electrical
Property (Test Method)
( ASTM D1000 unless noted)
Color
Adhesive
Backing Thickness
Total Thickness
Elongation (% at break)
Operating Temperature
Adhesion to Steel
Property (Test Method)
( ASTM D1000 unless noted)
Dielectric Breakdown
Breaking Strength
Insulation Resistance
Typical Value
US units (metric)
white
rubber thermosetting
5.0 mils (0,125 mm)
7.0 mils (0,177 mm)
8%
130° C
40 oz/in (4.4 N/10 mm)
Typical Value
US units (metric)
2000 V
170 lbs/in (298 N/10 mm)`
4.5 x 0.11 megohms
Specifications
Engineering/
Architecture
Shelf Life &
Storage
3M ? Glass Cloth Electrical Tape 89 is a glass cloth electrical tape with a rubber
thermosetting adhesive. The tape shall be white and 7 mils (0,177 mm) thick. The tape
shall be coated on one side with pressure-sensitive adhesive, which shall not require
heat, moisture or other preparation prior to or subsequent to application. The adhesive
coating shall be smooth and uniform and be free of lumps and bare spots. There shall
be no separator between adjacent layers of the roll. The tape shall perform at a
temperature of 266 ° F (130 ° C) without loss of physical or electrical properties.
For maximum solvent resistance and holding properties, the tape should be thermoset
at one of the following cycles;
1 hour @ 300° F(150° C)
2 hours @ 275° F(135° C)
3 hours @ 120° F(250° C)
This product has a 5-year shelf life from date of manufacture when stored in a humidity
controlled storage (50°F/10°C to 80°F/27°C and <75% relative humidity).
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