The purpose of an ESD protective working surface is to aid in the prevention of damage to ESD sensitive items (ESDS) and assemblies from electrostatic discharge. ESD mats need to be grounded. A ground wire from the mat should connect to the common point ground which is connected to ground, preferably equipment ground. For electronics manufacturing a worksurface resistance to ground (Rg) of 1 x 104 to less than 1 x 109 ohms is recommended. Best practice is that ground connections use firm fitting connecting devices such as metallic crimps, snaps and banana plugs to connect to designated ground points. The use of alligator clips is not recommended. Find accessories here.
To ensure the continuing safety of people and ESD-sensitive electronics, all static-controlled workstations should be periodically tested for ground integrity. See our resistance tester section
for more details.
For optimum electrical performance, surfaces must be cleaned regularly using an ESD mat cleaner. Vermason suggests using our Reztore™ Surface & Mat Cleaner
. Do not use cleaners with silicone. Silicone buildup will create an insulative film on the surface.
Vermason’s Statfree® T2 working surface matting is a 1.5mm thick, 2-layer rubber material. It is designed to provide a path to ground and eliminate static charge generation when used as a worksurface table mat, shelf liner or cart liner. The surface resistance (1 x 106 to < 109 ohms Rp-p) of the colour top layer meets EN 61340-5-1 working surface required limit and recommendation of EN 61340-5-1 for contact with ESD susceptible items.The conductive (<1 x 105 ohms Rp-p) bottom black layer reduces the resistance to ground (Rg) from the top of the surface to the groundable point ground and allows the mats to be used with continuous monitors.
The Statfree® T2 material is manufactured with high strength nitrile rubber that is designed to withstand abrasion, stretching, and tearing and may be used in soldering applications with flux and other chemicals. Material formulation includes ultraviolet (UV) stabilisers to stabilise colour retention to ensure ESD performance over time and eliminate surface layer deterioration resulting in cracking when the product is flexed. Statfree T2™ is manufactured without any ozone depleting substances, and in accordance with the Montreal Protocol.The authors of a recent article in InCompliance Magazine titled Early Life Failure of Dissipative Workstation Mats, have confirmed that our Statfree® T2 was the top performing worksurface mat (Mat ID#4 in the article) in their study. Click here
for more details.
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