Robot frame welds require >80μm protective coatings, but high-viscosity waterborne epoxies (≥2000cPs) face sagging-leveling conflicts on vertical surfaces. One customer reported 35μm thickness variation at welds, reducing salt spray resistance by 40%.
Chemi Tech's Breakthrough:
KMP-618 delivers:
Shear-thinning rheology: Viscosity ≥4500mPa·s at 10s (anti-sag), drops to 180mPa·s at 5000s (leveling)
Weld penetration technology: Fluorinated acrylate achieves ≤15° contact angle in seams
Rapid tension balance: Reduces interfacial tension gradient from 5mN/m to 0.3mN/m in 20s
Customer Results:
At 1.2% dosage in 80μm epoxy primer:
Sag resistance increased from 65μm to 110μm (GB/T 9264-2012)
Weld thickness variation controlled within ±5μm, passing 1000h salt spray (ISO 9227)
Leveling time shortened from 90s to 30s, cutting drying energy by 23%
Ideal for heavy-duty robot chassis and bearing blocks.