In the production of oil-based coatings, inks, and high-performance composite materials, do you often encounter these troubles? Pigments or fillers are difficult to disperse evenly in the resin system, and grinding efficiency is low; hard sediment forms after the product is stored and cannot be stirred up again; coating gloss is uneven or floating and flooding occurs, affecting the final appearance and performance. The core of these problems often lies in the failure of the dispersion step.
Chemi Tech well understands that in high-viscosity, high-solids oil-based systems, achieving long-term stable and uniform dispersion is a key challenge. Traditional dispersion methods or general-purpose additives find it difficult to simultaneously meet the requirements of rapid wetting, strong deagglomeration, and long-term stability. To this end, we have developed a series of professional oil-based dispersants, providing a complete solution from problem diagnosis to thorough resolution.
Our solution follows clear action steps. The first step is precise diagnosis and selection. Our technical team will analyze the composition of your system, the process conditions, and the specific problems, and recommend a dispersant model with suitable anchoring groups and solvating chains, ensuring compatibility with your resin system.
The second step is to optimize the addition and dispersion process. We recommend pre-mixing the dispersant with the pigment and part of the resin before grinding, so that it fully wets the pigment surface and reduces the strength of agglomerates at the source. During the grinding stage, the dispersant can effectively reduce the viscosity of the slurry, improving grinding efficiency and shortening working hours.
The third step is to achieve long-term stability. Chemi Tech dispersants, through steric hindrance and electrostatic stabilization mechanisms, form a firm and thick protective layer on the surface of pigment particles, effectively resisting the particles from approaching each other again due to van der Waals forces, thereby preventing re-agglomeration, sedimentation, and performance degradation during storage.
A case from the industrial coatings field confirms the value of the scheme. A customer, when producing dark anti-corrosion coatings, could never solve the problem of dispersing carbon black, resulting in fluctuating coating gloss and substandard anti-corrosion performance. After adopting a specific Chemi Tech high-molecular-weight block-type dispersant, the carbon black was fully dispersed, the grinding time was shortened by about 30%, the finished coating had uniform and consistent gloss, and after long-term accelerated storage testing no hard sediment was produced; the coating's salt spray resistance also improved significantly due to the uniform pigment distribution.
Choosing Chemi Tech means not only choosing a product, but also choosing a reliable dispersion strategy for high-viscosity oil-based systems. We are committed to using professional chemicals and technical services to help you improve product quality, stabilize production processes, and win market competitiveness.