DENSE LIQUID COATINGS FILTRATION

Liquid coatings with high viscosity, such as paints and industrial coatings, present specific challenges during filtration. Their rheological behaviour, often combined with air sensitivity and surfactant properties, makes it difficult to remove contaminants and oversize fractions without affecting product structure or introducing defects such as foaming or air entrapment.

The filtration process is critical to eliminate foreign bodies, gels, and undispersed particles that can lead to surface imperfections, nozzle clogging, or inconsistent application. At the same time, maintaining product texture and fluidity is essential to ensure optimal performance during application, whether by spraying, rolling, or other coating techniques.

Vibrating sieving can provide an effective solution, provided that the vibration is carefully controlled to suit the product characteristics. Parameters such as viscosity, throughput, mesh size, and installation point must be considered to achieve efficient separation without altering the product's properties. In particular, avoiding air incorporation and resonance effects is crucial when handling dense liquid systems.

MLT Cuccolini VSB vibrating sieves are specifically designed for the filtration of dense and viscous liquids. Their unique vibration pattern enables efficient screening without generating turbulence or entrapping air, preserving the integrity of the product while ensuring effective removal of contaminants and oversize particles.

Typically installed inline during product transfer or before filling and application stages, VSB sieves can handle a wide range of viscosities while maintaining stable throughput. Depending on the product's surfactant characteristics, they can also achieve very fine filtration levels, ensuring a high-quality final finish.

The combination of controlled vibration, optimized screening surface, and robust construction allows the VSB series to deliver reliable performance even in demanding conditions. Stainless steel execution and easy access for cleaning further support hygienic operation and efficient maintenance, especially in processes requiring frequent product changes.

Using MLT Cuccolini VSB vibrating sieves for dense liquid coatings filtration ensures improved product quality, with a consistent texture and absence of contaminants that could affect application and final appearance. The process also protects downstream equipment and reduces the risk of defects and rework.

At the same time, the ability to maintain high throughput without compromising filtration efficiency supports overall process productivity, even with challenging high-viscosity formulations.

Contact MLT Cuccolini to discuss your dense liquid coatings process and identify the most suitable vibrating sieving solution for your specific application.