Standard paper labels dissolve in xylene, curl off slides in immersion oil, and smear when wet — the routine hazards of a histology or pathology workflow. Heathrow Scientific Microscope Slide Tough-Tags are made from polyester: chemically resistant to xylene and organic solvents, waterproof, and autoclavable. The 7/8 × 7/8 in (0.88 × 0.88 in) format is sized specifically for the frosted label area of standard microscope slides. Laser printable in sheet format (96 labels per sheet, 25 sheets per pack, 2,400 labels total) — print specimen ID, patient information, stain type, date, and any other required fields directly from a standard laser printer without special label software. Available in White, Blue, Green, Orange, Red, Yellow, and Rainbow (one sheet each of 5 colors) for color-coded specimen organization across departments, stain protocols, or collection periods. Features and Benefits Polyester — Chemical Resistance to Xylene and Solvents: Polyester label material withstands xylene, alcohols, and other organic solvents used in standard histological processing, clearing, and coverslipping — labels remain adhered and legible through the full staining protocol. Autoclavable: Polyester labels survive standard autoclave cycles — use on slides processed in autoclaved solutions or in sterile tissue culture workflows. Laser Printable in Sheet Format: Standard sheet layout compatible with laser printers — print from any label software, Word, or Excel using standard 96-label sheet templates. No special printer required. 7/8 × 7/8 in — Sized for Microscope Slide Label Area: The 0.88 × 0.88 in square format fits the standard frosted area on the end of a 25 × 75 mm microscope slide without overhanging the slide edge. 2,400 Labels per Pack (25 Sheets × 96 Labels): High-volume pack for labs with ongoing slide preparation — 2,400 labels covers approximately 2,400 slides, appropriate for clinical labs, biobanks, and research facilities with continuous specimen preparation. 7 Color Options for Color-Coded Organization: White, Blue, Green, Orange, Red, Yellow, and Rainbow — use color coding to differentiate stain types, departments, collection dates, or specimen categories without relying on text alone. Specifications Property Value Label Size 7/8 × 7/8 in (0.88 × 0.88 in) Quantity 2,400 labels (25 sheets × 96 per sheet) Material Polyester Label Type Sheet, Laser Printable Autoclavable Yes Colors Available White, Blue, Green, Orange, Red, Yellow, Rainbow SKUs HEAMISL-1000 (White), -1000-B (Blue), -1000-G (Green), -1000-O (Orange), -1000-R (Red), -1000-Y (Yellow), HEARNBW-3300 (Rainbow) Price $71.00 (White/Color) / $70.50 (Rainbow) Laboratory Applications Histology and pathology labs — specimen labeling through full xylene-based staining protocols where paper labels would dissolve or detach Biobank and archival slide collections — laser-printed specimen IDs that remain legible and adhered through long-term storage and repeated handling Clinical microbiology — autoclave-compatible labels for slides processed in sterile conditions or autoclaved alongside equipment Multi-department color coding — using different label colors (or Rainbow packs) to differentiate specimens by department, stain protocol, or technician without additional annotation Frequently Asked Questions Are Tough-Tags compatible with inkjet printers?Tough-Tags are laser printable — polyester label material is designed for laser toner fusion. Inkjet ink does not bond adequately to polyester and will smear or wash off. A laser printer is required. What is the Rainbow pack (HEARNBW-3300)?The Rainbow pack contains 25 sheets with 5 colors (Blue, Green, Orange, Red, Yellow) — approximately 5 sheets of each color, 480 labels per color, 2,400 total. It is priced slightly below the single-color packs ($70.50 vs $71.00) and is useful when moderate quantities of multiple colors are needed without purchasing 5 separate packs. Do these labels fit the frosted area of all standard slides?The 7/8 × 7/8 in (0.88 × 0.88 in) format fits the standard frosted label area on most 25 × 75 mm (1 × 3 in) microscope slides. The frosted area dimensions vary slightly by slide manufacturer — measure your slide frosted area before ordering if exact fit is critical. Quality Assurance Heathrow Scientific Tough-Tags are manufactured from polyester with adhesive formulated for chemical resistance to xylene, alcohols, and aqueous processing solutions. Autoclave compatibility is verified for standard 121°C steam cycles. Laser printability is confirmed for standard monochrome and color laser printers. Ordering Authorized VEE GEE Scientific dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.
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