Which technical coatings should be used to protect tanks, hoppers, screw conveyors, dosing units, or agitators in the food industry?
Sofiplast, a specialist in surface treatment, provides advanced anti-corrosion, anti-abrasion, and non-stick technical coatings for food-processing equipment such as tanks, screw conveyors, hoppers, dosing units, and agitators. These solutions help reduce fouling, extend equipment lifespan, and comply with food-contact regulations.
In the food-processing industry, equipment used to handle and transport raw materials plays a critical role. It is exposed to complex challenges such as corrosion, product adhesion, mechanical wear, and stringent cleaning and sanitation requirements.
In environments where hygiene, safety, and durability are essential, Sofiplast offers a range of food-contact-compliant coatings and surface treatments designed to reduce equipment wear, minimize downtime, and optimize maintenance costs.
Coating solutions for mixing tanks, screw conveyors, dosing units, and agitators
Anti-abrasion coatings for tanks and food-processing equipment
Production equipment is regularly exposed to corrosive environments, such as acids and cleaning chemicals. This exposure can lead to rapid surface degradation, compromising equipment integrity and increasing the risk of product contamination.
It is therefore essential to apply suitable anti-corrosion coatings:
- Fluoropolymer coatings (PTFE such as Teflon®, Xylan®, or Greblon®)
- Food-grade ceramic coatings
These solutions provide excellent chemical resistance while complying with food-contact regulations, protecting equipment and ensuring food safety.
Applications:
mixing tanks, loading hoppers, agitators, screw conveyors, and dosing units in contact with acidic liquids or cleaned with alkaline agents.
Technical coatings and anti-abrasion treatments for the food industry
Equipment such as tanks, screw conveyors, dosing units, and agitators is subject to high mechanical stress. Handling dense or abrasive materials can cause rapid surface wear and increase maintenance costs.
To extend equipment lifespan, anti-abrasion coatings can be applied:
- Technical ceramic coatings
- Sprayed polyurethane-based solutions
These solutions provide enhanced protection against mechanical wear while maintaining smooth, food-compliant surfaces.
Technical coatings and anti-adhesion treatments for the food industry
nternal surfaces of food-processing equipment can accumulate product residues, making cleaning more difficult and causing material loss. These deposits can also lead to cross-contamination between production batches.
Applying non-stick coatings such as:
- Silicone-based coatings
- PFAS-free coatings, including sol-gel ceramic technologies
These solutions significantly reduce product adhesion, facilitate cleaning, minimize losses, and prevent cross-contamination, while meeting strict food-contact standards.
How can food processing equipment be protected during intensive cleaning and disinfection?
Food-processing equipment is regularly cleaned and disinfected to meet hygiene standards. However, intensive cleaning can damage surfaces, creating micro-cracks that promote bacterial growth. Non-porous, chemically resistant coatings are particularly effective.
They create ultra-smooth surfaces that:
- Prevent residue buildup
- Withstand aggressive cleaning agents
- Are fully suitable for food-contact applications
Certified coatings for safe food contact
The treatments applied by Sofiplast to your food-processing equipment are carried out exclusively using coatings that comply with food-contact regulations. These certifications ensure that surfaces in direct contact with food meet all applicable regulatory requirements and remain safe throughout their intended service life. This provides a critical level of assurance for food industry manufacturers.
Eco-friendly stripping processes compliant with food industry standards
To ensure the durability and performance of hoppers, screw conveyors, mixing tanks, and agitators, Sofiplast offers food-contact-compliant technical coatings that provide effective protection against adhesion, abrasion, and corrosion.
Upstream in the process, we support you in selecting the most appropriate eco-friendly stripping method. This process uses biodegradable and reusable plant-based media (wheat starch, corn, and fruit shells) as a safer alternative to more aggressive methods such as sandblasting, laser cleaning, cryogenic cleaning, or chemical stripping.
What are some PFAS-free nonstick coatings?
Sol-Gel: a PFAS-free ceramic alternative for the food industry
Sol-gel technology is based on the application of a thin ceramic coating derived from colloidal solutions which, after curing, form a solid network of metal oxides (such as silica). The coating is applied by dipping or spraying to ensure a uniform and consistent surface.
While offering slightly lower non-stick performance than fluoropolymers, sol-gel coatings provide excellent resistance to abrasion and high temperatures. They also benefit from lower curing temperatures, resulting in energy savings, and are entirely PFAS-free.
Fully compliant with European food-contact regulations, sol-gel technology meets both durability and food safety requirements.
With this solution, Sofiplast anticipates market trends and supports its customers in adopting more sustainable and responsible technologies
Benefits of Sofiplast surface treatments for the food industry
- Reduced production downtime
- Easier cleaning with fewer product residues
- Improved corrosion resistance
- Extended equipment lifespan
- Reduced material loss and waste
- Lower maintenance requirements
- Full compliance with food safety standards
Experiencing issues with your mixing tanks, screw conveyors, dosing systems or agitators?
Why do screw conveyors wear out or seize prematurely in food processing?
How can cleaning be optimized for tanks and agitators exposed to intensive production cycles?
How can product adhesion in hoppers be reduced to ensure consistent material flow?
Why do dosing systems clog quickly, and how can unplanned downtime be minimized?
Sofiplast supports you with proven, certified surface treatment solutions tailored to your food production processes.
Contact us for Surface treatment solutions and technical coatings approved for food contact.