Desco 66327 Statfree UC2 Dissipative Dual Layer Rubber Mat, Sky Blue, 24" x 36" x .080"
Desco 66327 — Statfree UC2 Dissipative Dual Layer Rubber Mat, Sky Blue, 24" × 36" × .080"
The Desco 66327 Statfree UC2 is a cleanroom-grade ESD worksurface mat for compact bench installations in controlled environments. The 24" × 36" mat is cleaned and packaged in a Class 1000 (ISO 6) controlled environment and double bagged to control contamination before transfer to the cleanroom. The dual layer construction delivers a dissipative top surface for safe contact with ESD-sensitive devices and a highly conductive bottom layer for grounding and ESD monitor compatibility. Includes Desco 14213 ground cord. Replaces the discontinued Desco 66311. Meets ANSI/ESD S20.20 worksurface requirements. Made in the USA.
Key Specifications
| SKU / Part Number | 66327 |
| Series | Statfree UC2 (Cleanroom) |
| Color | Sky Blue |
| Dimensions | 24 in × 36 in × .080 in |
| Cleanroom Packaging | Cleaned and packaged in Class 1000 (ISO 6) controlled environment; double bagged |
| Top Layer Resistance (Rtt) | Dissipative: 1 × 10⁶ to <1 × 10⁹ Ω |
| Bottom Layer Resistance (Rtt) | Highly Conductive: <1 × 10⁴ Ω |
| Material | High strength nitrile rubber |
| Included Accessories | Desco 14213 ground cord |
| Compliance | ANSI/ESD S20.20, ANSI/ESD S4.1, RoHS 2 compliant |
| Replaces | Desco 66311 |
| Origin | Made in USA |
Key Features
- Class 1000 Cleanroom Packaged: Mat is cleaned and packaged in a Class 1000 (ISO 6) controlled environment to remove contamination before use. Double bagged to control contamination of contents before transfer to the cleanroom.
- 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.
- Highly Conductive Bottom Layer (<1×10⁴ Ω): Lower-resistance path to ground than standard T2 Plus mats. Compatible with ESD workstation continuous monitors.
- High Strength Nitrile Rubber: Designed to withstand abrasion, stretching, and tearing. Suitable for soldering applications with flux and other chemicals.
- UV Stabilizer Additives: Preserves color retention and ESD performance; prevents surface cracking and deterioration over time.
- Includes Desco 14213 Ground Cord: Ready to connect to a common point ground at the workstation upon installation.
- Replaces Desco 66311.
- RoHS 2 Compliant. Made in USA.
Frequently Asked Questions
Is the Desco 66327 a direct replacement for the Desco 66311?
Yes. The Desco 66327 Statfree UC2 is the suggested replacement for the discontinued Desco 66311. It delivers equivalent cleanroom-grade dual layer ESD mat performance in the same 24" × 36" footprint with the UC2 series nitrile rubber compound, Class 1000 cleanroom packaging, and included 14213 ground cord.
What is the difference between the 66327 mat and the 66320 roll?
Both are Statfree UC2 cleanroom ESD mats. The 66327 is a pre-cut 24" × 36" mat cleaned and packaged in a Class 1000 controlled environment with the 14213 ground cord included — ready to install. The 66320 is a 30" × 40' roll for custom-cut installations without ground cord or cleanroom packaging.
Does the UC2 mat need to be grounded to function?
Yes. The mat must be properly grounded using the included 14213 ground cord 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.
