Ultramax DT Mobile Direct Thermal 4" x 6" Paper Labels 125/Roll - 0.50" Core | 2.51" OD  For Outdoor & Indoor Use | For TSC Alpha-40L

• 4" x 6" direct thermal laels (No ribbon required)
• Durable polypropylene labels for indoor and outdoor use
• Pemanet adhesive
• Price is per roll
• 125 labels per roll
• 0.50" core and maximum roll diameteris 2.51 inches
• Perforations
• Black sensor mark printed on back
• 24 rolls per case (sold by the case)
• For Mobile direct thermal printers such as TSC Alpha-40L that can hold 2.51" OD rolls.
• MOQ is 240 rolls (10 cases)

Premium 4" x 6" Direct Thermal Labels Made for the TSC Alpha-40L

Designed specifically for mobile workforces, Ultramax DT Mobile Direct Thermal 4" x 6" Paper Labels combine high-capacity rolls with genuine print durability — all without a ribbon. Each roll carries 125 labels on a slim 0.50" core, reaching a maximum roll diameter of 2.51 inches for extended printing between roll changes. That makes them a perfect match for the TSC Alpha-40L and other mobile direct thermal printers used by Canadian businesses every day. Print sharp, dark barcodes and text wherever the job takes you — on the dock, in the aisle, or out on the road.

• Label Size: 4" x 6"
• Labels Per Roll: 125
• Core Size: 0.50"
• Maximum Roll OD: 2.51"
• Print Method: Direct thermal — ribbon-free operation
• Ideal Printer: TSC Alpha-40L mobile direct thermal printer

Tough Enough for Canadian Warehouses, Shipping & Field Work

Standard direct thermal paper fades fast — but Ultramax DT is anything but standard. Its advanced protective topcoat gives these labels the staying power of a thermal transfer label while keeping the simplicity of direct thermal printing. The result is a label that shrugs off abrasion, moisture, and repeated handling, with a permanent adhesive that locks onto corrugated boxes, totes, and pallets. For Canadian operations dealing with everything from humid summers to freezing warehouses, that's the kind of reliability that keeps supply chains moving.

Where These Labels Perform Best

• Shipping & courier labels printed on the spot, right at the point of pickup or dispatch
• Warehousing & distribution — receiving, put-away, and cross-dock labeling that stays scannable
• Inventory & asset identification for long-term indoor tracking
• Field service & delivery fleets across Canada's cities, towns, and remote routes
• Retail & e-commerce fulfillment in back rooms and fulfillment centres

Ready for the Outdoors: Sun, Heat, Cold & Chemicals

Yes — these labels are built for outdoor use as well as indoor. Ultramax DT paper labels resist direct sunlight and UV exposure, keep performing in heat up to 70°C (158°F) and deep cold, and hold their print for up to 1 year outdoors — with up to 2 years of readability in typical indoor conditions. They also stand up to alcohol, bleach, IPA, ammonia, and saltwater, making them a smart choice for yards, loading docks, and vehicles where conditions are anything but gentle.

From a pallet baking in the August sun to a parcel riding through a Canadian winter, Ultramax DT labels keep your barcodes scannable, smudge-free, and readable — no ribbon, no reprints, no downtime.