The Development of Water-Based Industrial Baking Paint
Against the backdrop of the country's advocacy for sustainable and green development, water-soluble acrylic/polyester baking paints have been increasing their competitiveness in the industrial coatings market due to their environmental performance and technological advantages. They are widely used in numerous fields such as automotive transportation, furniture, hardware parts, and sports equipment.
Application Challenges of Pigment Pastes
Due to the weak hydrophilicity of industrial baking paint resins, a large amount of alcohol ether-based cosolvents need to be added to improve the system performance. However, when ordinary pigment pastes on the market are used in alcohol ether-containing systems, performance mismatches often lead to problems like flocculation and coarsening, which affect the film-forming effect.
To address this industry challenge, Keytec has launched color solutions--SI/TSI Series for water-based baking paints (especially alcohol ether-containing solvent systems), providing a guarantee for the color performance of industrial baking paints.
1. Alcohol Ether Resistance Performance Test
A comparative test on alcohol-ether resistance was conducted between several ordinary pigment pastes available on the market and Keytec's SI/TSI series pigment pastes. The test involved mixing alcohol and pigment paste at a ratio of 7:3, followed by thorough stirring. A good compatibility between the pigment paste and alcohol was indicated if there were no granular precipitates in the cup and no particles adhering to the cup wall; otherwise, the compatibility was considered poor.
2. High-temperature Resistance Test
Generally, water-based baking paints require high-temperature baking (usually ≥120℃) to form a film, so the pigment pastes used must be able to withstand the baking temperature. Therefore, for pigment pastes applied in water-based baking paint systems, in addition to excellent alcohol-ether resistance, good compatibility and high-temperature resistance are also crucial. Keytec's SI/TSI series pigment pastes, when tested in water-based baking paint binders from two different manufacturers, after being baked at 120℃ for 10 minutes, resulted in a complete and smooth paint film without blistering, particles, or discoloration compared to the unbaked state.
Keytec's SI/TSI series of water-based industrial paint pigment pastes, with their outstanding alcohol-ether resistance, excellent compatibility, and high-temperature resistance, deliver comprehensive and reliable coloring solutions for water-based baking paints—empowering industrial coating processes with more stable color performance and more efficient production applications.