Murakami MS Emulsion Reclaimable Hardener – Post-Exposure Stencil Hardener for Screen Printing

Murakami

Murakami MS Emulsion Reclaimable Hardener – Post-Exposure Stencil Hardener for Screen Printing

Murakami MS Emulsion Reclaimable Hardener is a high-performance, post-exposure stencil hardener designed to dramatically increase stencil durability without permanently locking screens onto the frame. Screen printers rely on MS Hardener to improve water resistance, solvent resistance, and abrasion resistance when running long print jobs, high squeegee pressure, or aggressive ink systems.

Ideal for water-based, discharge, and additized plastisol inks, MS Hardener strengthens exposed emulsions after development and blocking. Unlike permanent hardeners, it maintains full reclaimability when proper procedures are followed, allowing screens to be reused efficiently.

Murakami MS Hardener is compatible with all major emulsion chemistries, including diazo, dual-cure, and pure photopolymer (SBQ) emulsions—across all major brands, not just Murakami. This makes it a versatile solution for production shops seeking longer stencil life with fewer press stops and touch-ups.

$49.99

4 in stock

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SKU: MUR MS Hardner-01 Categories: , , Tags: , , , , , , , , ,

Description

Murakami MS Emulsion Reclaimable Hardener Key Features & Benefits:

  • Reclaimable post-exposure emulsion hardener
  • Significantly increases water and moisture resistance
  • Improves abrasion resistance for long print runs
  • Ideal for water-based, discharge, and aggressive plastisol inks
  • Reduces edge breakdown and on-press touch-ups
  • Compatible with diazo, dual-cure, and SBQ photopolymer emulsions
  • Works across emulsion brands, not brand-specific
  • Applied after exposure, development, and blockout
  • Reclaimable with standard stencil removers when used correctly

Recommended Use:

After exposure, development, and blockout, apply Murakami MS Hardener evenly to both sides of the screen. For best results, cure the treated screen in direct sunlight or a 100°F hot box to maximize stencil strength before printing.

Ideal For:

  • Long production runs
  • Water-based and discharge screen printing
  • Abrasive inks or high squeegee pressure
  • Printers needing longer stencil life without permanent hardening

Murakami MS Emulsion Reclaimable Hardener gives screen printers the durability they need on press—while preserving the ability to reclaim screens quickly and safely.

Technical Specifications

Directions to Use Murakami MS Hardener for Stencil Hardening (Water-Based & Discharge Printing):

  1. Preparation: Ensure that the emulsion-coated screen has been properly exposed, developed, blocked out, and thoroughly dried before proceeding with the application of Murakami MS Hardener.
  2. Handling Precautions: Always wear protective gloves and eye protection when handling the hardener to ensure safety during the application process.
  3. Application: Apply Murakami MS Hardener to both sides of the dry, exposed emulsion using a clean coating trough or scoop coater. Ensure even coverage across the entire screen surface to achieve consistent hardening.
  4. Curing: After applying the hardener, place the treated screen in direct sunlight or a controlled environment such as a 100-degree hot box for optimal results. This curing process activates the hardening agents in the emulsion, enhancing water resistance.
  5. Dwell Time: Allow the hardener to dwell on the screen for the recommended time, as provided by the manufacturer. Adequate dwell time is crucial to ensure the emulsion hardens properly for water-based and discharge printing.
  6. Post-Curing: After the dwell time has elapsed, thoroughly rinse both sides of the screen with water to remove any excess hardener.
  7. Reclaiming: It is essential to note that while Murakami MS Hardener enhances the water resistance of the emulsion, it can also make the stencil more challenging to reclaim. To ensure ease of reclaiming, follow proper screen cleaning procedures and use appropriate reclaiming chemicals.

Important Note: Following the recommended process techniques and adhering to the dwell time is crucial to achieving the desired water resistance for water-based and discharge printing. However, keep in mind that the emulsion will become more difficult to reclaim once the hardener is applied. Proper handling, disposal, and safety precautions should be observed when using this product.

Technical Sheets / Safety Data Sheets / Documents

Murakami MS Hardener Safety Data Sheet

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