Grey Blocker Underbase is a grey dye-migration blocking underbase — printed first, under your colors, its grey blocking layer stops polyester and sublimation dyes from migrating up and discoloring the print. It cures at 290–310°F for polyester, poly blends and tri-blends. CPSIA-compliant and phthalate-free, made in Hackensack, New Jersey. Pint, quart, gallon and 5 gallon. Heat cure. Made in the USA. Also available in larger quantities — 30-gallon and 55-gallon drums; call 201-487-9600 for volume and discount pricing. Features & benefits Grey dye-migration blocker — stops polyester/sublimation dyes from ghosting into your print Underbase-grade — print it first, then your colors and white on top For polyester, poly blends & tri-blends — the toughest bleed fabrics Cures 290–310°F — low bleed CPSIA-compliant & phthalate-free — made in the USA Always run a test print first. Before any production run, print and fully cure a test on your exact garment and check opacity, hand and wash-fastness. It's the best habit in the shop — if you're not sure on settings, call us at 201-487-9600 before you run the job. What it prints on 100% polyester & poly blends — print the grey blocker first to stop dye migration Tri-blends & sublimated garments — the blocking layer holds back bleed under bright prints Printing & curing Mesh: 110–160 for a solid blocking layer Squeegee: 65, 75 or 80 durometer — or a 70/90/70 triple durometer Flash: 240–260°F between colors Cure: curing is a time-and-temperature process — bring the full ink film to 290–310°F (143–154°C); confirm with a temp gun or donut probe, not dryer air temp Recommended companion products Nylon Bond 289 Additive — mix into this ink to bond prints to nylon and other slick synthetics (catalyst; stir in a small amount, limited pot life, always test first). Quick Flash Reducer — thins for easier printing. Soft Hand Base — softer hand feel. Pantone® Custom Color Match — send us your target Pantone® and we custom-mix the color for you (plastisol, solvent, UV & water-base). Cleanup: OPTI Wash 125 and OPTI Spot 303. How close are we to your Pantone? See our Standard Color → Pantone® (PMS) Match Chart — the closest Pantone® reference for every Total Ink Solutions standard color, with RGB and HEX values. For an exact, verified match, our UMX® system mixes to your target. Safety, PPE & storage Wear nitrile gloves and safety glasses; avoid prolonged skin contact with uncured ink. Print with adequate ventilation; vent your dryer. Always stir before use. Storage & shelf life: keep sealed, out of sun. Shelf life 1–2 years. As an all-polyester low-cure ink, store at 60–80°F. In high heat expect container expansion — open carefully. Do not freeze. Refer to the Safety Data Sheet before use. Compliance CPSIA compliant (16 CFR 1303
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