Westmoreland County, Route 30 and I-70
ESD Flooring in Westmoreland County
Static control floors for Westmoreland County operations, built to the band your process requires rather than to a colour chart.
What it is
Why Westmoreland County needs it
Westmoreland is real production floor, not office space with a lab attached. Semiconductor assembly and test in particular is one of the few operations where the floor is genuinely part of the yield conversation rather than part of the housekeeping conversation.
That changes the priorities. On a production floor the questions are how fast it can go down, how long before racks can load, and whether the reading holds a year from now, in that order.
Westmoreland County
Westmoreland County
Where we work
The Westmoreland County corridor
We cover the Route 30 and Interstate 70 corridor through Greensburg, Youngwood and New Stanton, and the RIDC innovation campus on the old assembly site.
power semiconductor assembly and test
precision machining and electro-mechanical assembly
large format manufacturing
Route 30 and Interstate 70 are an easy run for us, so Westmoreland is not an out of area surcharge.
The standard
The two bands the standard defines
Measured to ANSI/ESD STM7.1. Which one you need is set by what you build, never by preference.
ohms, logarithmic
S20.20 system ceiling, 109 ohmsfloor plus footwear plus person, to STM97.1
- Conductive2.5 x 104 to 1.0 x 106 ohmsCharge has to leave the floor fast.
- Static dissipative1.0 x 106 to 1.0 x 109 ohmsCharge bleeds off in a controlled way.
- Ordinary epoxyabove 1.0 x 1011 ohmsTwo decades past anything the standard accepts.
Conductive
2.5 x 10⁴ to 1.0 x 10⁶ ohms
Charge has to leave the floor fast and the operation handles parts that fail at low voltage. Common in electronics assembly and munitions or energetics work.
Static dissipative
greater than 1.0 x 10⁶ to less than 1.0 x 10⁹ ohms
Charge has to bleed off in a controlled way rather than dump. The usual choice where people work around live equipment and a hard path to ground is a shock risk.
The whole system
less than 1.0 x 10⁹ ohms
Floor, footwear and person together to ANSI/ESD STM97.1, plus a walking test under less than 100 volts peak to ANSI/ESD STM97.2.
Before anybody quotes
What we look at first on a floor like yours
Return to service, honestly
Most plant floors run three to five days from grind to return to service. Foot traffic is typically 24 hours after the final coat and forklift or rack loading typically 72, set by the system and the slab temperature. Cold slabs cure slower, which matters here in February.
Retest, not just install
Annually at minimum for an S20.20 program, and after any change to cleaning chemicals, footwear or process. Most audit findings on flooring are drift, not a bad install, and drift is cheap to catch early.
Traction against cleanability
Aggregate can be broadcast to reach the traction you need, and it is a real trade-off: more texture is more grip and a harder floor to keep clean, and cleaning method is what moves your resistance readings.
By name
Every standard on this page
Nothing here is our own designation. Look any of them up before you talk to anybody.
- 01The floorSTM7.1 measures this alone
- 02The footwearpart of the system
- 03The personpart of the system
- 04Building groundcopper strip, bonded
STM7.1 reaches the floor, and stops there.
STM97.1 and 97.2 reach all four links.
STM97.1 under 1 x 109 ohms, and STM97.2 under 100 volts walking
That is the whole chain, measured together. The floor on its own never settles it.
ANSI/ESD S20.20
The ESD control program standard an audited facility is held to.
ANSI/ESD STM7.1
How the resistance of the floor itself gets measured.
ANSI/ESD STM97.1
How the floor, the footwear and the person get measured as one system.
ANSI/ESD STM97.2
The walking test. Peak body voltage a person generates on that system.
ASTM D257
The general DC resistance method the flooring methods descend from.
NFPA 77
Recommended practice on static electricity where ignition is the risk, not part damage.
Static control across the metro
ESD flooring nearby
Same standard, different floor. Pick the one closest to your operation.
Scheduling
Can you pour it in Westmoreland County this week?
Live air and dew point over Route 30 and Interstate 70 corridor through Greensburg, Youngwood and New Stanton, and the RIDC innovation campus on the old assembly site, scored against ASTM D3276. Five degrees of margin over the dew point, held through prep, application and cure, or the floor blushes while it is going off.
Reading conditions over Westmoreland County...
What this is and is not
This reads the air. The standard governs the slab, and concrete lags air by hours, sometimes by most of a day after a cold night. A slab can still be under the dew point while the air above it looks fine. So treat this as your scheduling answer, not your go-ahead: the go-ahead comes off a surface thermometer and a hygrometer at the door on the morning of. Cure windows also move by system, so the product data sheet on your job is what governs.
FAQ
Static control questions
The six that come up once you have a slab and a deadline. The full twenty five, on resistance, grounding and test method, are on the Pittsburgh page.
Cost is driven by four things: square footage, how much existing coating has to come off, whether the slab needs moisture mitigation, and which band you have to hit. A grind-and-coat over sound concrete and a full mitigation build on a wet slab are different projects. We quote after we have seen the slab and know the band, not before.
Most plant floors run 3 to 5 days from grind to return to service, driven by square footage, how much coating has to come off first, and cure time between coats. A phased install keeps part of the floor working while the rest goes down.
Yes, in phases, nights and weekends. Most plants cannot give up a whole floor at once, so the floor gets sectioned and the grounding network gets tied together as the sections join.
Yes. Impact and abrasion are a separate spec from resistance, handled with a thicker build or a urethane cement body under the conductive topcoat. Ask for both numbers, because a floor can be compliant and still be too soft for your traffic.
Yes, across the Pittsburgh metro including Cranberry Township, Robinson Township, Moon Township, Monroeville, Warrendale, North Strabane Township and the surrounding Butler, Allegheny, Washington and Beaver county corridors.
Four things: square footage, the band you have to hit (conductive or dissipative, and whether an audit sets it), what is on the slab now, and your traffic. If you do not know the band, that is a normal place to start and it is worth settling before anyone quotes you.
Read all twenty five static control answers on the Pittsburgh page, including resistance bands, grounding and test method.
Start here
Tell us about the slab
Square footage, the band you have to hit, what is on the slab now, and your traffic. If you do not know the band, that is a normal place to start.
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