Desco Industries 65159 - Statfree B2 Plus Dissipative 2-Layer Vinyl Tray Liner, Green, 16 in x 24 in x .080 in with .750" Radius Corners
Desco 65159 — Statfree B2 Plus Dissipative 2-Layer Vinyl Tray Liner, Green, 16" × 24" × .080" with .750" Radius Corners
The Desco 65159 Statfree B2 Plus is a dissipative 2-layer vinyl tray liner designed for use as an ESD-safe worksurface in tote trays, storage containers, and workstation inserts. The B2 Plus uses a reinforced vinyl compound for improved durability and dimensional stability compared to standard vinyl mat materials — suitable for most electronic assembly applications. The two-layer construction combines a dissipative top layer meeting ANSI/ESD S20.20 requirements with a conductive bottom layer for grounding and ESD monitor compatibility. Made in the USA with a limited lifetime warranty on both layers.
Key Specifications
| SKU / Part Number | 65159 |
| Series | Statfree B2 Plus |
| Color | Green |
| Dimensions | 16 in × 24 in × .080 in |
| Corner Radius | .750 in radius corners |
| Top Layer Resistance (Rtt) | Dissipative: 1 × 10⁶ to <1 × 10⁹ Ω (Limited Lifetime Warranty) |
| Bottom Layer Resistance (Rtt) | Conductive: <1 × 10⁶ Ω (Limited Lifetime Warranty) |
| Material | Reinforced vinyl compound (2-layer) |
| Compliance | ANSI/ESD S20.20, ANSI/ESD S4.1, RoHS compliant |
| Warranty | Limited lifetime warranty (both layers) |
| Origin | Made in USA |
Key Features
- Reinforced Vinyl Compound: Improved material compound is more durable and dimensionally stable than standard vinyl mat materials, suitable for most electronic assembly applications.
- 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 placed on the surface.
- Conductive Bottom Layer: Low-resistance path to ground reduces Rtg from top surface to groundable point, enabling use with ESD workstation continuous monitors.
- Laser Engraved Identification: ESD protective symbol, specifications, and manufacturer information laser-engraved on the bottom layer for product identification, control, and EPA auditing.
- RoHS Compliant. Made in USA.
How Does the Statfree B2 Plus Differ from the Statfree T2 Plus?
The B2 Plus uses a reinforced vinyl compound, while the T2 Plus uses a nitrile rubber compound. Both are dual-layer dissipative/conductive tray liners meeting ANSI/ESD S20.20, but the materials differ in feel, weight, and chemical resistance. The T2 Plus nitrile rubber is specifically formulated for oil and flux resistance and is the preferred choice for solder workstation applications. The B2 Plus vinyl is lighter and dimensionally stable, suited for general electronic assembly tray liner use where rubber is not required.
Frequently Asked Questions
Does the Desco 65159 need to be grounded to work?
Yes. Like all ESD worksurface liners, the 65159 must be properly grounded to dissipate ESD charges. The conductive bottom layer provides the low-resistance path to ground. Connect the liner to a common point ground using a mat grounding cord at the groundable snap or via contact with a grounded conductive surface.
Is the B2 Plus vinyl tray liner suitable for soldering workstations?
The B2 Plus is suitable for most electronic assembly applications. However, for heavy soldering workstation use with frequent flux and chemical exposure, the Statfree T2 Plus nitrile rubber tray liner is the preferred choice due to its oil-resistant compound formulation.
What does ANSI/ESD S20.20 compliance mean for this tray liner?
ANSI/ESD S20.20 is the industry standard for ESD control programs in electronics manufacturing. A worksurface meeting S20.20 requirements has a resistance-to-groundable-point (Rtg) of less than 1×10⁹ Ω when properly grounded. The B2 Plus dissipative top and conductive bottom layers together meet this requirement when the liner is properly grounded.
