LK Packaging F20508W – 5×8 Reclosable Poly Bags with Write-On Block, 2 Mil LDPE

LK Packaging F20508W – 5×8 Reclosable Poly Bags with Write-On Block in 2 Mil LDPE

The LK Packaging F20508W is a 5×8 reclosable seal-top poly bag in 2.0 mil clear LDPE featuring a printed white write-on block on the bag face. LK Packaging’s W-suffix bags add a permanent frosted white writing panel that accepts permanent marker, ballpoint, or grease pencil directly on the bag — eliminating adhesive labels for operations that manually identify larger-format bags in warehouse, pharmacy, laboratory, and industrial kitting environments.

What does the W suffix mean on LK Packaging’s 5×8 reclosable bag?

The W designation in LK Packaging’s F20 series indicates a printed white write-on block integrated into the bag face during film manufacturing. The frosted white panel on LK Packaging’s F20508W provides a durable, smear-resistant writing surface for permanent marker or ballpoint pen — creating a permanent identification record on the bag without adhesive labels that can peel, fall off, or lose legibility during handling.

What industries and applications rely on LK Packaging’s 5×8 write-on block reclosable bags?

LK Packaging F20508W bags are used by pharmacy compounders labeling large compound kits, clinical labs marking multi-component specimen or reagent sets, industrial distributors hand-labeling large hardware kit pouches, and electronics assembly operations identifying populated PCB bags by board revision and serial range. The 5×8 format provides a larger write-on panel area than smaller W-suffix bags, accommodating more identification fields per bag.

How do contract packagers use LK Packaging F20508W bags for kit traceability?

Contract packagers assembling multi-component OEM kits use LK Packaging F20508W bags to write part numbers, kit revisions, lot codes, and assembly dates directly on the bag as each kit is completed. The bag becomes a self-contained traveler document that accompanies the kit through inspection, warehousing, and shipping without requiring separate paper travelers or label-printing infrastructure for low-volume kit SKUs.

Are LK Packaging F20508W bags FDA-compliant for pharmaceutical and food contact?

Yes. LK Packaging manufactures the F20508W from FDA-compliant LDPE resin. The write-on block ink is applied to the exterior film surface and does not contact bag contents, maintaining compliance for pharmaceutical compound packaging and food-contact applications at the 5×8 size. Confirm applicable regulatory requirements for your specific product category and jurisdiction.

How does the LK Packaging F20508W compare to the standard F20508?

The LK Packaging F20508W shares the same 5×8 dimensions, 2.0 mil LDPE film, and double-track reclosable zipper as the standard F20508, with the addition of the white write-on block on the bag face. For operations requiring manual bag identification on medium-to-large format bags without a label system, the F20508W is the preferred LK Packaging option. For label-print-and-apply operations, the standard F20508 delivers the same performance at a slight cost advantage.