In solvent-based screen printing, the dispersant is the key to preventing nozzle clogging, ensuring color consistency, and achieving the perfect finish. However, one size does not fit all. Depending on your substrate, curing method, and pigment type, the choice of dispersant can make or break your formulation.

Tianjin Ruike Chemical (www.rk-chem.com) offers a professional matrix of dispersing agents to help you achieve the best performance-to-cost ratio.

Scenario 1: Industrial Plastics (PVC/ABS) & General Packaging

• The Challenge: Standard plastic substrates require good wetting and high gloss without excessive cost.

• The Solution: RD-9103 (Benchmarked against Solsperse 20000)

• Why use it: This 100% active polymer dispersant is the "workhorse" for PVC and acrylic systems. It significantly reduces mill-base viscosity and improves the jet-blackness of carbon black, ensuring clean edges and vibrant colors on industrial panels.

Scenario 2: High-Solid UV Packaging & Matte Systems

• The Challenge: UV systems require low viscosity at high pigment loadings to ensure smooth printing through fine meshes.

• The Solution: RD-9105 (Benchmarked against Solsperse 24000)

• Why use it: Available in solid granular form, RD-9105 is a 100% active ingredient optimized for UV offset and screen inks. It provides exceptional stability for high-surface-area pigments and matting powders, preventing "ink spitting" or uneven textures.

Scenario 3: Universal Color Pastes & Automotive/Plastic Paint

• The Challenge: You need a "one-for-all" dispersant that is compatible with various resin systems (PU, Acrylic, etc.).

• The Solution: RD-9782 (Benchmarked against Solsperse 32500)

• Why use it: RD-9782 is a versatile liquid dispersant. It is the gold standard for creating universal oily color pastes, offering a perfect balance between organic pigment stabilization and broad resin compatibility.

Scenario 4: Nano-Grade Precision & High-End Specialty Inks

• The Challenge: When standard dispersants fail to reduce viscosity or when you need ultra-fine (nano) particle distribution.

• The Solution: RD-9784 (Advanced High-Efficiency Grade)

• Why use it: RD-9784 features an advanced block copolymer structure with more adsorption groups. It is designed for the most demanding applications, such as high-end automotive OEM parts and premium UV inkjet/screen inks, where rapid grinding and extreme stability are mandatory.

Technical Support & Samples:Visit our portal at www.rk-chem.com to download the full TDS for each model or request a trial sample kit for your specific substrate (PVC, PET, PC).