Handai Chemical: New Dual-Emulsion Solution for High-Build Industrial Coatings

Sagging during high-film-build application has long been a challenge across the industrial coatings industry. Traditional dual-emulsion systems show notable shortcomings — even a modest increase in applied film thickness can readily cause sagging, edge runs, surface marks, and poor film formation, severely compromising both coating quality and application efficiency while hindering the practical adoption of high-build industrial coatings. To address this core technical bottleneck, Shanghai Handai Chemical has made targeted breakthroughs through iterative innovation and has introduced the HDE8123B + HDH6882 dual-emulsion system, a dedicated solution for industrial high-film-build coatings that fully overcomes the difficulties of high-build application.

Leveraging proprietary formulation optimization and process upgrades, this new dual-emulsion system delivers a transformative breakthrough in application performance. Validated through gradient panel spray testing, the product enables one-pass, high-build spray application with complete film formation — entirely free from sagging, edge runs, or surface defects — while providing excellent leveling and consistently superior film build quality. A single application can achieve a dry film thickness of approximately 600 μm, with the coating remaining smooth, intact, and clean-edged even under such high-build conditions, effectively eliminating the industry-wide problem of inevitable sagging at high film thicknesses typical of conventional systems.

The product exhibits outstanding rheological performance, backed by solid data that reinforces its application advantages: viscosity measured at 500 rpm stays below 1,000 cP and remains stable without fluctuation after one hour of use, ensuring compatibility with a wide range of airless spray equipment. The application process is smooth and effortless, with fine, uniform atomization that significantly lowers the application barrier and effectively boosts coating efficiency and first-pass yield.

As a solution purpose-built for industrial high-build coatings, HDE8123B + HDH6882 combines exceptional sag resistance, ultra-high film thickness stability, and excellent spray compatibility, offering a wider application window and suitability across a broad spectrum of industrial high-build scenarios while delivering outstanding practicality and on-site feasibility.

By solving industry pain points through technological innovation and empowering industrial upgrading with robust products, Handai Chemical remains steadfast in its brand philosophy of “Innovation for a Better Life.” The company continues to invest deeply in the R&D of advanced coating materials. And through continuously evolving technical achievements, we help to ensure efficient, high-quality application across the industrial coatings sector.