ESD Garments Frequently Asked Questions
What garment lengths are available?
Jacket - A jacket is shorter and will be about hip-length on a person of average height.
¾ Length - A ¾-length is a happy medium between jacket and coat. The bottom hem reaches to about mid-thigh on most wearers. (Standard length for Econo$hield garments)
Coat - A coat is almost knee-length on a person of average height.
Why do some garments have cords hanging from the wear's hip?
Shielding - Garments with ground cords can be used as a primary grounding path for personnel. The carbon web of the garment ensures even dissipation across the garment's entire surface, greatly reducing the likelihood of damage from ESD or concentrated fields. Static shielding garments do not, however, ground the operator or garment.
Grounding - Our groundable garments provide a path to ground for both operator and garment through a single connection at either side of the wearer's waist. Conductivity between operator and garment are ensured either by the grid-knit ESD cuffs or with the Key Option and existing wrist straps. If you're currently using wrist straps, you probably already know how effective personnel grounding is; imagine those benefits with the added benefits of unleashed hands!
Are ESD Garments suitable for Cleanroom use?
No. - Garments are intended primarily for non-cleanroom electronics production environments. However, our garments made of Polyester and carbons-suffused nylon threads and while they do not have the containment capability of typical cleanroom garments, they do not lint or sluff fibers.
Are ESD Garments suitable for working near high voltage hazards?
No!- Garments are made to protect sensitive electronics from the voltage generated by the operator's body and clothing. They are highly conductive and should not be worn near sources of high voltage. Hopefully there are no high voltage hazards in your ESD-safe workplace! Please contact us for a copy of ESD Controls in Hazardous High Voltage Environments, a paper that discusses an approach to resolve the seeming incompatibility of ESD controls and high voltage hazard safety controls.
How do I know if a garment is working?
Test your garments following the guidelines in the ESD Association's [Standard Test Method] STM2.1-2013 - for the Protection of Electrostatic Discharge Susceptible Items – Garments – Resistive Characteristics. This document is available for purchase on their website at www.esda.org. If you are using a Tech Wear (Category 3) garment with ESD knit cuffs (or the Key option) as the primary grounding path for personnel, you can use a standard wrist strap tester by connecting a ground cord to the designated groundable point (located on the hip pocket) and plug into the tester. A “pass” indication from the tester is your assurance that you AND your garment are grounded.
Can you embroider or silkscreen my name or company logo onto a garment?
Yes we can! - In order to ensure a garment is as conductive as possible, the preferred method is to embroider or silkscreen your name or company onto a patch and sew this directly to the garment, but we can, depending on your fabric selection, embroider or silkscreen directly onto the garment. Please contact us with your questions and requirements.
How should garments be laundered?
Static control garments can be laundered at home or by a commercial laundry service provider with excellent results. Laundering instructions are printed on the size label at the back of the neck of each garment. The laundering instructions of each fabric are listed at the bottom of their respective pages.
What is meant by sleeve-to-sleeve?
Sleeve-to-sleeve has become the abbreviated term referring to the resistance measurement from one sleeve to the other on a static control garment. The less resistance across a static shielding garment's seams and fabric, the more evenly it will dissipate charge imbalances; more crucially in the case of groundable garments, the more surely the body and garment are both completely grounded. The method for testing a garment's sleeve-to-sleeve conductivity is fully described in the National ESD Association's STM2.1-1997 ¬ for the Protection of Electrostatic Discharge Susceptible Items ¬ Garments.
What does ESD stand for? How do the garments work?
Electro-Static Discharge. The seemingly insignificant static charge generated by our own bodies and clothing causes losses in the billions in our industry every year. Naturally-occurring body-borne static electricity is an hazard to delicate electronic components that you don't even have to touch a microchip to destroy it. We will will be happy to furnish you with fabric samples for destructive testing that can help you determine which fabric will work best in your work environment. E-mail us and we'll get them to you right away. Contrary to some claims, fabric surface conductivity alone is not enough. For a garment to truly protect your product from body-borne static, conductivity across all garment panels must be ensured. Unless the individual panels are electrically connected through the seams, the garment cannot be grounded as a whole through one single grounding point.
How should we wear our ESD garments? Can we leave them open/unsnapped?
All snaps on the front of the garment should be snapped to prevent exposure of static generating personal garments to sensitive products. The snap located at the neckline can be left unsnapped for comfort, if it is determined that products will not be exposed to static generating personal garments at that height. Long sleeves of personal garments worn underneath an ESD garment should be pushed up or rolled up above the elbow to assure that they will remain under the sleeve of the ESD garment. The adjusting snaps on the ESD garment sleeve hems can be used to help prevent exposure of personal garments to sensitive products. The sleeves of the ESD garment should always remain extended to the wrist area to prevent the exposure of excessive arm hair which can generate static.
What is the KEY option?
The Key Option allows the wearer to connect a wrist strap directly to either sleeve hem of the garment and then connect a standard ground cord to a ground snap on a lower hip pocket for grounding the garment and the wearer through one grounding path, allowing for untethered arms. This provides an excellent mechanism for testing the grounding of the garment and wearer through the use of a standard wrist strap tester. This garment option is also compatible with continuous monitoring systems with one path to ground.
Contact: Allen Tang
Phone: +86 13632876247
Add: Room 605,Huaide Yinshan Building, Fuwei Community, Fuyong Street, Baoan District, Shenzhen