Description
The Portwest AS21 antistatic ESD polo shirt is workwear for employees working in environments where electrostatic discharge poses a risk. The shirt is made of 96% cotton with 4% carbon fiber, which ensures a comfortable feel and effective antistatic properties. It is suitable for daily use in sectors where ESD control is mandatory.
In which work environments is the Portwest AS21 antistatic ESD polo shirt suitable?
The Portwest AS21 is suitable for work environments where electrostatic discharge can cause damage to sensitive electronics or pose a safety risk, such as the electronics industry, semiconductor manufacturing, pharmaceutical production, and petrochemical environments.
These sectors have strict requirements for ESD control. The shirt complies with EN 1149-5 and EN 61340-5-1, the European standards for electrostatically dissipative clothing. EN 1149-5 describes the material requirements for protective clothing against electrostatic discharge; EN 61340-5-1 specifically focuses on the protection of electronic components. Together, these standards guarantee that the shirt can be used in certified ESD zones.
What does the combination of cotton and carbon fiber in the Portwest AS21 polo shirt mean for the antistatic performance?
The addition of 4% carbon fiber to the cotton base material ensures that static charge is dissipated instead of built up, which is the core of ESD protection.
Pure cotton is naturally less suitable as ESD clothing because it does not have conductive properties. By incorporating carbon fibers into the fabric, a conductive network is created that dissipates static electricity. The 96% cotton content maintains the comfort and breathability desired in a polo shirt for daily use. The shirt weighs 150 g/m², making it light and suitable for use throughout a full workday.
The shirt is washable at a maximum of 40°C and can be dry cleaned by a professional dry cleaner using tetrachloroethylene, normal process.
Material and care:
- Outer material: 96% Cotton, 4% carbon fiber (150 g/m²)
Washing instructions: Max wash temp 40°C, normal process. Do not bleach. Do not tumble dry. Line dry. Iron at max 150°C. Professional dry cleaning, Tetrachloroethylene, normal process.


























