Champion Inks® Grey Blocker Underbase – Quart
Premium low-bleed barrier for 100% polyester and blends.
Champion Inks® Grey Blocker Underbase is a high-opacity, low-cure plastisol ink formulated to block dye migration and deliver vibrant, accurate top colors. Designed for polyester, tri-blends, and sublimated fabrics, it creates a neutral grey barrier layer that prevents color contamination and ensures professional, long-lasting results.
Key Features & Benefits
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Advanced Dye Blocking – Prevents dye migration on polyester and sublimated fabrics.
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High Opacity Barrier – Provides a neutral base for bright, accurate color printing.
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Soft-Hand Feel – Maintains comfort and flexibility even with strong coverage.
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Optimized for Manual & Automatic Presses – Consistent flow and printability across setups.
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Low-Cure Technology – Cures at 290–310°F (150–165°C), ideal for heat-sensitive materials.
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Superior Adhesion & Durability – Ensures lasting wash performance without cracking.
Recommended Applications
- 100% Polyester & Sublimated Fabrics
- Tri-Blends & Cotton–Poly Blends
- Dark Garments (as an underbase for bright top colors)
- Sportswear, Activewear & Performance Apparel
Technical Specifications
| Ink Type |
High-Opacity, Low-Bleed Plastisol |
| Viscosity |
Medium-bodied for smooth application |
| Opacity |
High (optimized for blocking migration) |
| Cure Range |
290–310°F (150–165°C) |
| Flash |
250°F (121°C) · 3–5 seconds |
| Shelf Life |
12 months from manufacturing date |
| Pack Size |
Quart (ideal for mid-volume production) |
Screen Printing Guidelines
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Mesh Count: 110–160 for standard prints; 200+ for fine details.
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Stencil Type: Water-resistant emulsion.
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Squeegee: 65–75 durometer for smooth, consistent coverage.
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Curing: Fully cure between 290°F–310°F (150–165°C) for best barrier performance.
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Clean-Up: Use Champion OPTIWASH 125 for quick and efficient ink removal.
Storage & Handling
- Store between 65–90°F (18–32°C) to maintain viscosity and quality.
- Keep containers sealed; avoid direct sunlight and temperature extremes.
- Use within one year for optimal results.
Safety & Compliance
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CPSIA Compliant – Lead <300 ppm; Non-phthalate formulation.
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Prop 65 Compliant – Safe for apparel printing and consumer products.
- Use protective gloves, eyewear, and proper ventilation during application.
Why Choose Champion Inks® Grey Blocker Underbase?
Champion Inks® Grey Blocker Underbase sets the standard for low-bleed, high-opacity underbases. Its advanced grey pigment system creates a reliable shield against dye migration, ensuring vivid, consistent top colors and professional-grade print integrity on every garment.
