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Metric 90A Polyurethane Static Dissipative Tubing
Brand: Freelin-WadeStatic electricity is a stationary charge of electricity resting on an object’s surface.
With plastic tubing, the charge is usually generated by friction on the exterior or interior of the tubing. The charge is typically localized. This means that a charge may exist on one part of the tube but not the entire tube. The spotty nature of the charge makes it much harder to detect.
Furthermore, humans can only sense electrostatic discharge (ESD) greater than 3,500 electrostatic volts. A charge as low as 100 ESD volts can damage certain circuits meaning that electronics can be destroyed by ESD without the person even knowing it.
For more information about ESD, please contact Freelin-Wade.
Freelin-Wade’s Static Dissipative Polyurethane tubing is available in both a 90A durometer and an 85A durometer tube. It’s made from an Ether-based polyurethane that is specially formulated to help control ESD.
It should always be used in low humidity environments or when tubing is going to be near circuit boards.
Features- Dissipates electrostatic charges with no chemical additives
- Contains no conductive fillers and no particle emission
- Dissipative values are permanent and cannot be washed away
- Non-contaminating and non-outgassing
- Ideal for low humidity environments
- Non-corrosive to electronic leads and components
Specifications
Brand
Temperature Range
- -40° to +165° F
Vacuum Rating
- Up to 28” Hg
Diameter Tolerances
- ± 0.005”
Dissipative Values
- Per EIA Standard 541
Volume Resistivity
- 85A: 4 x 10^10 ohms-Cm
- 90A: 9.9 x 10^9 ohms-Cm
Surface Resistivity
- 85A: 1 x 10^11 ohms/sq
- 90A: 9.9 x 10^9 ohms/sq
Working Pressure
- 3:1 Safety Factor
UV Stabilized
- 90A & 85A
Resin Compliance
- 85A: FDA
Suggested Fittings
- Barb