Matsui WS0533 Under Base Blocker 301-LG Black Water Base Screen Printing Ink


Unlock the true potential of your screen printing with Matsui Black Blocker LG 301. This high-performance water-based ink is specially designed to deliver outstanding under-base results, making it an essential tool for achieving exceptional prints on various fabric types. Say goodbye to dye migration worries on 100% polyester and fabrics prone to bleeding, as this reliable ink keeps your designs crisp and vibrant.


SKU: MAT Under Base Blocker Black LG Category:


Matsui Under Base Blocker 301-LG Black Key Features:

  1. Superior Under Base: Matsui Black Blocker LG 301 is engineered to provide excellent under base results, ensuring your designs pop with vibrant colors on any fabric surface.
  2. Dye Migration Prevention: Experience peace of mind with this ink’s exceptional dye migration prevention, making it an ideal choice for polyester and fabrics susceptible to bleeding.
  3. Versatility: Not only does it serve as a black under base blocker, but it also complements plastisol inks as an effective under base, opening up a world of creative possibilities.
  4. Premium Performance: Expect smooth and flawless printing every time, thanks to its excellent printability and low tack properties.
  5. High Opacity: Enjoy the deep and rich black tone with high opacity that enhances the visual impact of your designs.
  6. Easy Mixing and Application: Matsui Black Blocker LG 301 can be effortlessly mixed and applied, making it suitable for both seasoned printers and newcomers.

Technical Specifications

Product Description: Matsui Black Blocker LG 301

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 Black LG 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 Black LG 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. Retarder MG: Incorporate 1-5% of Retarder MG to extend the open time in the screen, allowing for smoother and more controlled printing.
  2. 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.
  3. 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 exceptionally soft hand feel.
  4. 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.
  5. RV Additive: Fine-tune the viscosity of Black Blocker LG 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 Specifications:

  • Wet Ink Tack: Low
  • After Flash Tack: Low
  • Printability: Excellent
  • Surface Appearance: Black
  • 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: 110-305/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: Black
  • Substrate Type: Polyester and fabrics prone to bleeding
  • Substrate Color(s): Light, Medium, and Dark Fabrics

Discover the power of Matsui Black Blocker LG 301 and elevate your screen printing game to new heights. Experience unparalleled quality and achieve stunning prints that leave a lasting impression on any fabric canvas.

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.


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