Water-Based Grey Blocker WB – Premium Underbase for Dye Migration Prevention Water-Based Grey Blocker WB is a high-opacity blocking base designed to prevent dye migration when printing on polyester and dark-colored fabrics. This underbase creates a strong barrier layer, ensuring that vibrant top colors remain crisp and unaffected by fabric dyes. Key Features: ✔ Excellent Dye Migration Resistance – Prevents fabric dyes from bleeding into top colors.✔ High Opacity – Creates a solid underbase for vibrant prints.✔ Soft & Flexible Finish – Maintains fabric softness and durability.✔ Smooth Application & Easy Printability – Provides consistent and reliable coverage.✔ Eco-Friendly & Safe – PVC-free, Phthalate-free, and Formaldehyde-free.✔ Works on Various Fabrics – Ideal for polyester, blends, and synthetic textiles. Ideal For: ✅ Printing on Polyester & Dark Fabrics✅ Underbase for Bright & Vibrant Prints✅ Reducing Dye Bleed Issues With its superior blocking capabilities and eco-friendly formulation, Water-Based Grey Blocker WB is an essential underbase for achieving sharp, professional-quality textile prints.