BYK-354

Product Details

CasNo： 9003-01-4

MF： (C3H4O2)n

Appearance： liquid

Delivery Time： 15 days

Packing： 25kg/drum

Purity： 99%

1. Basic Information

• Brand and Model: BYK-354, a polyacrylate-based surface additive from BYK (Germany), suitable for solvent-based, solvent-free coatings, and UV-curing systems.
• Packaging Specification: 25 kg/blue iron drum, meeting the needs of small and medium batch purchases.
• Core Component: Polyacrylate solution, a standard additive with both leveling and defoaming functions.

2. Core Performance

1. Synergistic Dual Functions:
   • Efficient Leveling: Reduces the surface tension (to 28 - 32 mN/m) in solvent-based/solvent-free coatings, eliminates defects such as craters and fisheyes, and ensures a uniform and smooth coating. It is especially suitable for metallic paints and clear coat systems without affecting aluminum flake orientation and clear coat transparency.
   • Auxiliary Defoaming: Accelerates the escape of tiny bubbles in coatings, reduces surface defects such as pinholes, and meets the defoaming requirements of high-viscosity systems (such as UV inks).
2. Broad System Compatibility:
   • Compatible with solvent-based acrylic resins, alkyd resins, epoxy resins, and UV-curable polyurethane systems, without causing haze in colored paints or clouding in clear coats;
   • Especially recommended for room-temperature curing unsaturated polyester resins (such as artificial stone coatings) and epoxy resins (such as floor paints), and works stably during normal-temperature curing.
3. Process Adaptability:
   • Suitable for various construction processes such as spraying, brushing, and rolling, optimizes the leveling performance of high-solid-content coatings, and reduces the risk of sagging during thick coating.

3. Application Fields

• Solvent-based and Solvent-free Coatings:
  • Industrial Coatings: Original automotive paints, metal anti-corrosion paints (such as ship paints), improve the appearance flatness and adhesion of coatings;
  • Wood Coatings: Solvent-based PU paints, UV-curable wood clear coats, improve the uniformity of coatings on wood surfaces and reduce brush marks.
• UV-curing Systems:
  • UV Printing Inks: Film gravure inks, label UV inks, solve the spreading problem of inks on PET/PP substrates and improve pattern clarity;
  • UV Varnishes: Varnishing treatment for plastic casings and paper printed products, enhance gloss and scratch resistance.
• Room-temperature Curing Plastic Systems:
  • Unsaturated Polyester Products: Surface coatings for FRP and artificial marble, prevent the generation of bubbles and craters during curing;
  • Epoxy Resin Floors: Solvent-free epoxy self-leveling coatings, promote floor leveling and assist in defoaming to form a flat and wear-resistant coating.

4. Usage Guide

• Recommended Dosage:
  0.1 - 1.0% based on the total formula. It is recommended to use 0.3 - 0.8% for solvent-based coatings and 0.5 - 1.0% for UV systems. The optimal dosage needs to be determined through gradient tests (such as 0.3%, 0.5%, 0.8%) to avoid foaming caused by excessive addition.
• Adding Method:
  • Solvent-based systems: Can be added directly during the grinding or paint mixing stage, and stirred for 15 - 20 minutes until uniformly dispersed;
  • UV systems: Add before photocuring and mix thoroughly with prepolymers, avoiding high-shear stirring to prevent additive failure.
• Compatibility Tips:
  Compatible with polar solvents (such as butyl acetate, xylene), avoid mixing with strongly polar alcohol solvents (such as methanol) or non-polar alkane solvents to prevent system demulsification.

5. Storage and Safety

• Storage Conditions:
  Store in a sealed manner in a cool and dry place at 5 - 35°C, with a shelf life of 12 months; if the viscosity increases at low temperatures, it can be used normally after heating to 25°C and stirring.
• Environmental Characteristics:
  Compliant with EU REACH regulations, the VOC content is controllable, and it is suitable for industrial coatings and printing inks with relatively high environmental protection requirements.