Desco TB-5538 Service Manual

TB-5538 December 2008 Page 1 of 6

ESD Systems.com • 432 Northboro Road Central • Marlboro, MA 01752 • [phone] • Fax [phone] • Website: ESDSystems.com

TECHNICAL BULLETIN TB-5538

© 2008 DESCO INDUSTRIES INC.

Employee Owned

Antistatic Tape
Applications

Surface Resistance (73°F, 45% RH):

10E10 - 10E11 Ohms - ASTM-D-257

Static Generation from conductive plate:

(73°F, 45% RH): 80 volts average

Static Generation from roll:

(73°F, 45% RH): 50 volts average

Meets government specs: CID-A-A-113C, Type 1 Class A

Applications for Antistatic Clear Cellulose Tape with
and without Symbols

• Sealing ESD bags and other ESD packaging / containers

• Use with ESD symbols for ESD awareness

• General purpose ESD tape applications

• Secure (bundle) IC DIP tubes

• Prevents damage to sensitive electronic components in
manufacturing

• Ideal for holding notes, work orders or obstructions in
offices, antistatic workstations, or for general purpose
third hand use

• Ideal for conformal coating or holding and sealing
supplies in manufacturing

• Ideal in packaging for container sealing, static shielding
bag closure and holding DIP tubes

Applications for Antistatic Clear Cellulose Tape
with Symbols

• Identification or marking product / paperwork / processes

• High visibility with ESD susceptibility symbol for increased
awareness

• Attach ESD paperwork to bags or product

• Ideal in packaging for container sealing, static shielding
bag closure and holding IC DIP tubes

• Prevents damage to sensitive electronic components in
manufacturing

In ESD protected areas, replace regular high charging tape
with Wescorp Antistatic Tape. ANSI/ESD S20.20 paragraph

6.23.1. state “All nonessential insulators, such as those
made of plastics and paper (e.g., coffee cups, food wrappers
and personal items) must be removed from the workstation.

Wescorp Antistatic Cellulose Tape Line

Technical Information for Antistatic Cellulose Tape

Thickness: 2.4 mil (0.06 mm)
Film construction: Cellulose
Adhesive: Rubber based - non-staining, absorbs moisture
Adhesive surface resistance: 10E10 - 10E11 Ohms
Temperature Range: -10°C - 71°C (14°F - 160°F )

100°C for 10 min max - MIL-B-81705
Color: Transparent
Roll Length: 36 yards (1" core); 72 yards (3" core)
Film Thickness: 2.0 mils
Elongation: 25%
Tensile Strength: 25 lbs/in

2

Adhesion Strength: 40 oz/in

2

Wescorp Antistatic Tapes

TB-5538 Page 2 of 6

ESD Systems.com • 432 Northboro Road Central • Marlboro, MA 01752 • [phone] • Fax [phone] • Website: ESDSystems.com

© 2008 DESCO INDUSTRIES INC.

Employee Owned

Wescorp Antistatic Conductive
Shielding Grid Tape

Technical Information for
Conductive Shielding Grid Tape

Both surfaces non-tribocharging at 50% RH
Thickness: 1.9 mil (0.049 mm)
Adhesive: acrylic based
Conductive grid layer (50% RH): 10E4 to 10E5 ohms
Adhesive copolymer resistivity: 10E9 Ohms
Copolymer layer resistivity: 10E12 Ohms
Max Temperature: 140°F (60°C)
Absence of shed, crack, chip, or rub off
Non-corrosive

Applications for Conductive Shielding Grid Tape

• For applications requiring EMI shielding

• Use in areas where the generation of static electricity is of
concern

• Using grounded Tape Dispenser, voltage generated by
unrolling will effectively be reduced to zero

• Secure (bundle) IC tubes

• Covers external plugs, holes or connector pins on
electronic chassis (black boxes, etc.) during transportation
or storage

Excerpt from the Naval Aviation Schools Command: "...
Weapon Replaceable Assemblies (WRA)s shall have ESD
conductive plug caps or grid tape over all external cannon
plugs and connector pins.”

Wescorp Antistatic High-Temp Polyimide Tape

Technical Information for High-Temp Polyimide Tape

Removal leaves little or no residue
Adhesive surface resistance: 10E2 to 10E4 Ohms
Max Temperature: 572°F (300°C) 10 seconds
Adhesive Strength: 1 N/cm (DIN), 5 oz/inch2(ASTM)
Surface Resistance (Adhesive): 10E3 to 10E4 Ohms
DuPont's Kapton®Polyimide Film or equivalent
Thickness: 0.0254 mm (DIN), 1.0 mil (ASTM)
Conductive Silicone Adhesive
Thickness: 0.0356 mm (DIN), 1.4 mil thick (ASTM)
Total Thickness: 0.060 mm (DIN), 2.4 mil (ASTM)
Color: Brown Opaque
Tensile Strength: 50 N/cm (DIN), 28 lbs/in2(ASTM)
Elongation: 70% (DIN & ASTM)
Static Charge Generation (300 mm/min):

Removal from Core (23°C +/- 2°C, 50% +/- 2% RH):
5 volts, Internal Test Method
Removal from stainless steel (50% RH):

5 volts, Internal Test Method
Flamability: NASA STD 6001, Test 1
Hypergol ignition and Penetration testing: MTB-175-88

(for casual contact)

Applications for High-Temp Polyimide Tape

• Ideal for masking gold leads and other components on
boards populateFd with sensitive integrated circuits

• Thick conductive adhesive excellent for conformability to
protect critical PCB features

• Near zero voltage generation when tape unrolled from roll
[at 50% relative humidity]

• Near zero voltage generation when tape removed from
PCB [at 50% relative humidity]

• Masking off PCBs for IR reflow ovens or wave soldering
under 572°F (300°C) ~ 10 seconds