Desco 66431 Statfree T2 Plus Dual Layer Rubber Mat Top Kit, Green, .060" X 24" X 48"
Desco 66431 — Statfree T2 Plus Dissipative Dual Layer Rubber Mat Kit, Green, 24" × 48" × .060"
The Desco 66431 Statfree T2 Plus Mat Kit is a complete ESD worksurface solution for single-operator bench installations. It includes a 24" × 48" dissipative dual layer rubber mat in green with grounding hardware — ready to install as a compliant ESD worksurface without sourcing accessories separately. The two-layer construction delivers a dissipative top surface for safe contact with ESD-sensitive devices and a conductive bottom layer for grounding and ESD monitor compatibility. Meets ANSI/ESD S20.20 worksurface requirements. Replaces the discontinued Desco 66058. Made in the USA.
Key Specifications
| SKU / Part Number | 66431 |
| Series | Statfree T2 Plus |
| Format | Mat Kit (mat + grounding hardware) |
| Color | Green |
| Dimensions | 24 in × 48 in × .060 in |
| Top Layer Resistance (Rtt) | Dissipative: 1 × 10⁶ to <1 × 10⁹ Ω |
| Bottom Layer Resistance (Rtt) | Conductive: <1 × 10⁶ Ω |
| Material | Nitrile rubber (oil resistant compound) |
| Compliance | ANSI/ESD S20.20, ANSI/ESD S4.1, RoHS compliant |
| Replaces | Desco 66058 |
| Origin | Made in USA |
Key Features
- Complete Kit: Mat and grounding hardware included — ready-to-install compliant ESD worksurface for single-operator bench installations.
- Dissipative Top Layer: Meets ANSI/ESD S20.20 worksurface required limits and ANSI/ESD S4.1 recommendations. Does not generate static charge; controls discharge rate from ESD-sensitive devices on the surface.
- Conductive Bottom Layer: Low-resistance path to ground enables use with ESD workstation continuous monitors and reduces Rtg from top surface to grounding point.
- Nitrile Rubber Oil-Resistant Compound: Resists oil absorption, maintaining electrical and physical properties through service life. Suitable for solder workstations with flux and chemicals.
- UV Stabilizer Additives: Preserves color retention and ESD performance; prevents surface cracking and deterioration over time.
- Laser Engraved Identification: ESD protective symbol, specifications, and manufacturer information on the bottom layer for product identification and EPA auditing.
- Replaces Desco 66058.
- RoHS Compliant. Made in USA.
Frequently Asked Questions
Is the Desco 66431 a replacement for the Desco 66058?
Yes. The Desco 66431 is the suggested replacement for the discontinued Desco 66058. It provides equivalent dual layer dissipative/conductive rubber mat performance in the same 24" × 48" footprint with the improved nitrile rubber compound and UV stabilizers of the T2 Plus series.
What is included in the Desco 66431 mat kit?
The 66431 includes the Statfree T2 Plus dual layer rubber mat (24" × 48" × .060") and grounding hardware. This allows the mat to be put into service as a compliant ESD worksurface without purchasing a separate grounding cord or common point ground accessory.
Does the T2 Plus mat need to be grounded to function?
Yes. The mat must be properly grounded using the included grounding hardware to dissipate ESD charges. Without grounding, the mat cannot remove accumulated charge from the worksurface or objects placed on it. Verify grounding with a surface resistance meter after installation.
