In robotic arm coating applications, waterborne coatings require high flowability and thick spray layers, often leading to microfoams and pinholes that cause film shrinkage and poor adhesion. A leading robot manufacturer reported bubble retention in their water-based epoxy primer during automated spraying, resulting in 12% rework due to 0.1–0.5 mm "volcano" defects after curing.
Chemi Tech’s Targeted Solution:
KM-1802 achieves three breakthroughs:
Synergistic modified silicone & hydrophobic particles: C8–C22 alkyl-modified silicone oil combined with hydrophobic silica (particle size ≤5 μm) rapidly bursts foam films and suppresses rebound.
High-temperature stability: Maintains efficiency in 60°C–90°C baking and pH 10–14 alkaline systems.
Self-emulsifying technology: Direct addition without dilution prevents stratification, ensuring compatibility with acrylic/epoxy resins.
Case Study:
Adding 0.3% KM-1802(0.2% during initial dispersion + 0.1% in adjustment phase) delivered:
90% reduction in bubble residues and zero shrinkage holes;
Stable Stormer viscosity (50KU±2 after 30 days at 50°C);
15% higher spraying line efficiency with annual savings exceeding ¥260,000.
Deployed in 3 industrial robot manufacturers, compatible with waterborne polyurethane, acrylic, and more.