Matsui Under Base Blocker 301 Gray Screen Printing Ink

Technical Specifications: Matsui 301 Blocker Gray

Experience the convenience of purchasing 301 Gray Blocker right out of the bucket or unleash your creativity by making it yourself. Blend 90% Matsui Blocker Black LG with 10% Matsui Stretch White to achieve excellent under base results and prevent dye migration on various fabric types. Elevate your screen prints with this versatile and customizable combination.

Application: Print through fine screen mesh (110~305/inch recommended) when cured at 320°F (160°C), Matsui 301 Blocker Gray provides exceptional under base results, preventing dye migration on 100% polyester and fabrics prone to bleeding. It can also serve as an effective under base blocker for plastisol inks.

Mixing Ratio for 301 Gray Blocker: To create the 301 Gray Blocker, blend 90% Matsui Blocker Black LG with 10% Matsui Stretch White. This combination offers versatility and allows for customized printing solutions.

Special Recommendations: Matsui 301 Blocker Gray should be mixed in clean vessels using clean mixing blades and utensils. Any contamination from other ink sources or non-approved additives could affect its performance.

For enhanced printing capabilities and longevity of your prints, consider the following special recommendations:

1. Dry Cleaning and Ironing: Prints made with Under Base Blocker Gray can be safely dry cleaned or ironed, preserving the quality and appearance of your designs.
2. Retarder MG: Incorporate 1-5% of Retarder MG to extend the open time in the screen, allowing for smoother and more controlled printing.
3. Fixer WF-N: Boost the wash fastness of your prints by adding 1-5% of Fixer WF-N to the ink, ensuring that your designs withstand repeated washings without compromising on vibrancy.
4. Softener MG: Achieve better penetration into the garment by adding 1-4% of Softener MG to the ink, resulting in long-lasting and vivid prints with an exceptional soft hand feel.
5. Thickener B: To adjust the ink’s consistency according to your printing needs, consider adding 0.25-1% of Thickener B to thicken the ink.
6. RV Additive: Fine-tune the viscosity of Under Base Blocker Gray with 1-3% of RV Additive, enhancing control and printability during the printing process.

Additionally, you have the option to add 6%-9% Quick Additive, which contains Fixer WF-N, Retarder MG, and Softener MG, to further enhance performance and achieve desired printing effects.

Technical Data Sheet:

• Wet Ink Tack: Low After
• Flash Tack: Low
• Printability: Excellent
• Surface Appearance: Gray
• Opacity/Viscosity: High/Medium
• Bleed Resistance: None
• Flash Temperature: 160°F (71°C) / decreases with deposit thickness
• Cure Temperature: 320°F (160°C)
• Squeegee Hardness: Medium
• Squeegee Blade: Sharp
• Squeegee Angle: 45 degrees to screen
• Squeegee Speed:
• Medium Emulsion: Direct or indirect
• Mesh Count: 86-120/inch (43-120/cm)
• Thinner: RV Additive
• Thickener: Thickener B
• Storage: 65°F to 95°F (18°C to 35°C). Avoid direct sunlight.
• Cleanup: Water and mild soap or detergent
• Color Range: Gray
• Substrate Type: Polyester and fabrics prone to bleeding
• Substrate Color(s): Light, Medium, and Dark Fabrics

Make the most of Matsui 301 Blocker Gray’s exceptional properties to enhance your screen printing results and achieve professional-quality prints.

Note: The printer must test the ink before a production run. River City Supply and affiliates are not responsible for dye migration or misuse of this product. It is imperative for the printer to test and ensure the ink is properly cured and opaque enough to prevent dye migration on particular fabrics.