Desco 42558 Statfree Z2 Dissipative 3-Layer Vinyl Tray Liner, Green, 16" x 24" x .125" with .750" Radius Corners
Desco 42558 — Statfree Z2 Dissipative 3-Layer Vinyl Tray Liner, Green, 16" × 24" × .125" with .750" Radius Corners
The Desco 42558 Statfree Z2 is a pre-cut ESD tray liner sized to fit standard 16" × 24" cafeteria-style parts trays used in electronics assembly and in-process material handling. Green colorway. The .750" radius corners ensure a clean fit in rounded-corner trays without gaps or overlap. The heat-fused 3-layer vinyl construction delivers a dissipative top surface, highly conductive mesh middle layer, and cushioned dissipative bottom layer — all with a Limited Lifetime Warranty and no electrical drift. Laser engraved with the ESD protective symbol, specifications, and manufacturer identification for ESD control program auditing. Meets ANSI/ESD S20.20 and ANSI/ESD S4.1 worksurface requirements. Made in the USA.
Key Specifications
| SKU / Part Number | 42558 |
| Series | Statfree Z2 |
| Format | Pre-cut tray liner |
| Color | Green |
| Dimensions | 16 in × 24 in × .125 in |
| Corner Radius | .750 in (fits rounded-corner cafeteria trays) |
| Construction | Heat fused 3-layer vinyl composite |
| Top Layer | Dissipative, abrasion resistant: 1 × 10⁶ to <1 × 10⁹ Ω Rtt — Limited Lifetime Warranty |
| Middle Layer | Conductive mesh: <1 × 10⁴ Ω Rtt — Limited Lifetime Warranty |
| Bottom Layer | Dissipative, cushioned: 1 × 10⁶ to <1 × 10⁹ Ω Rtt — Limited Lifetime Warranty |
| Warranty | Limited Lifetime Warranty (all 3 layers; no electrical drift) |
| Marking | Laser engraved: ESD protective symbol, specs, manufacturer ID |
| Compliance | ANSI/ESD S4.1, ANSI/ESD S20.20, RoHS compliant |
| Origin | Made in USA |
Download Technical Datasheet (PM-112)
Key Features
- Sized for Standard 16" × 24" Cafeteria Trays: Pre-cut to fit the most common parts tray format in electronics assembly environments. .750" radius corners match the tray’s rounded corners for a clean, gap-free fit without trimming.
- Laser Engraved for Audit Compliance: Each liner is laser engraved with the ESD protective symbol, electrical specifications, and manufacturer identification — enabling quick visual identification and documentation during ESD control program audits per ANSI/ESD S20.20.
- Heat Fused 3-Layer Vinyl Composite: All three layers permanently bonded — no delamination in tray handling and transfer use.
- Dissipative Abrasion-Resistant Top Layer (Limited Lifetime Warranty): Meets ANSI/ESD S20.20 and ANSI/ESD S4.1 requirements. Electricals will not drift for the life of the liner.
- Conductive Mesh Middle Layer (<1×10⁴ Ω, Limited Lifetime Warranty): Low-resistance path to ground (Rtg) compatible with ESD continuous workstation monitors.
- Dissipative Cushioned Bottom Layer (Limited Lifetime Warranty): Absorbs energy to protect ESD-sensitive components from physical shock during tray handling and transport.
- RoHS Compliant. Made in USA.
Frequently Asked Questions
What size tray does the Desco 42558 fit?
The 42558 is sized to fit standard 16" × 24" cafeteria-style parts trays with .750" radius corners — the most common tray format used in electronics assembly, PCB handling, and in-process material transfer in ESD-protected areas. Verify your tray dimensions and corner radius before ordering.
Why is the 42558 laser engraved?
The laser engraving identifies the liner as an ESD protective product and includes electrical specifications and the manufacturer’s name. This supports ESD control program auditing and traceability requirements under ANSI/ESD S20.20, allowing auditors and technicians to quickly verify that the correct ESD-rated liner is in use without removing it from the tray.
Does the tray liner need to be grounded?
Yes. To function as part of a compliant ESD worksurface, the liner must be connected to a common point ground — either via the tray if the tray itself is grounded, or via a separate ground cord. A Desco mat ground cord with the appropriate snap or eyelet must be used. Verify grounding with a surface resistance meter after installation.
