Food-grade epoxy adhesives are an important component for filter bonding in the food processing industry. These adhesives provide strong and durable bonding, which ensures that filters, mesh sieves, and screens remain securely bonded to frames or other equipment used in the food production line. They are resistant to harsh conditions such as high temperatures, moisture, and chemicals, maintaining their adhesive properties and structural integrity.

These adhesives are formulated to meet the stringent requirements of food safety regulations set by the FDA and EU. It’s made to be non-toxic and free from harmful components that can contaminate food.

A] Understanding Food Grade Certification

Using certified food-grade epoxy in filter bonding for food processing industries is essential for maintaining food safety and regulatory compliance. Certified food-grade epoxy adhesives are formulated to be non-toxic and free from harmful substances like bisphenol A (BPA), which can contaminate food. They offer excellent bonding strength and durability, ensuring that filters, mesh sieves, and screens remain securely bonded to frames or other equipment used in the food production line.

Certified food-grade epoxy adhesives comply with FDA regulations, EU guidelines, and other relevant standards, demonstrating a commitment to food safety and regulatory compliance. FDA CFR 175.05 and FDA CFR 175.300 are the two regulations that specify the types of materials used in food-grade epoxies. A certified epoxy can be used in multiple applications, including sealing metals, bonding, plastics, rubbers and other substrates. Since the epoxy has high resistance features, it can be used as a coating for storage tanks, bins and other vessels.

To get your hands on a certified epoxy, work with an adhesive manufacturer which is known for producing high-quality, long-lasting bonding solutions for various industries.

B] Benefits of Grade Epoxies for Filter Bonding

Using food-grade epoxy in filter bonding offers several advantages. Here are a few of them:

• Non-toxic and safe: Food-grade epoxy adhesives for filters are made with FDA-approved raw materials and comply with CFR 175.105 and 175.300 as well as the European Framework Regulation EU 1935/2004. These epoxy will not leach into food, making them safe for use in food contact applications. They are also resistant to bacteria and other contaminants, which helps to prevent cross-contamination.
• Resistant to Harsh Conditions: The food processing environments can be challenging with exposure to high temperatures and chemicals, including acids, bases and solvents. These adhesives are moisture-resistant, making them ideal for use in harsh environments.
• Longevity and Durability: Food-grade epoxy for filter bonding is known for its durability and long-lasting performance. It can withstand the rigours of food processing environments, including temperature fluctuations and cleaning processes.
• Cost-Effective: While food-grade epoxy may have a higher initial cost compared to some other bonding methods, its durability and resistance to food-related substances can lead to cost savings over time by minimising the need for repairs or replacements.

C] Applications of Food Grade Epoxy in Filter Bonding

Food-grade epoxy is commonly applied in reservoirs, tanks, silos, breweries, dairies, and food processing plants. Additionally, it is used for potting filter media, safeguarding them against harm and contamination. Food-grade epoxy is also used in repairing damaged filters and enhancing their performance, rendering them more resistant to chemicals, heat, and other harsh elements. Epoxy adhesives are used inv various industries such as aerospace, automotive, construction, electrical and many more.

Concrete examples of food-grade epoxy’s utility include bonding filter media to frames in the food and beverage sector, encapsulating filter media to protect against damage and contamination, sealing filter joints to prevent leaks and maintain hygiene, repairing damaged filters, and enhancing filter performance to withstand harsh conditions.

D] Considerations for Selecting Food-Grade Epoxy

When choosing a food-safe epoxy for filter applications, there are various factors to consider. Compatibility with filter materials and frames is essential to prevent degradation and ensure a robust bond. The adhesion strength is essential to maintain filter integrity during typical usage. The epoxy’s cure time must sync with production and application needs; shorter times may suit high-volume production, while longer ones might be necessary for harsh conditions.

To withstand exposure to various substances without deterioration, chemical resistance is required. Also, the epoxy adhesive must consist of non-toxic, food-approved materials to prevent any harmful chemical leaching.

E] Proper Handling and Application Techniques

When handling food-grade epoxy adhesives, it is essential to prioritise safety by wearing gloves, eye protection, and a respirator to shield from harmful fumes and chemicals emitted during the adhesive’s mixing and curing process. It’s important to keep the adhesive and food separate, regardless of food-safe labels, to prevent any contamination risk. If the adhesive comes into contact with food, throw the food immediately.

To maximise safety, it’s important to work in a well-ventilated area and refrain from applying the adhesive in direct sunlight or high humidity, as these conditions can affect curing and bonding strength. For effective adhesion, both the adhesive and the surface must exhibit compatible intermolecular and chemical interactions. Surface properties play a crucial role in adhesion, as failure can result from inadequacies in either the adhesive or the surface.

The common application methods include brushing and rolling for larger surfaces, spraying for quick application, and dipping to coat objects thoroughly. The application depends on factors like surface size, shape, and desired adhesive thickness.

Conclusion

In the food industry, the versatility of food-grade epoxies extends to various applications, including filter bonding, providing a range of advantages that set them apart from other adhesive options. These benefit food safety, durability, chemical resistance, and temperature tolerance. When selecting a food-grade epoxy for filter bonding, factors like the filter type, environmental conditions such as temperature and humidity, and curing time are crucial considerations. Utilising food-grade epoxy allows food manufacturers to elevate the safety and quality of their products. Food safety is ensured as these epoxies are crafted from FDA-approved components, critical for maintaining product safety. Their durability allows them to withstand the rigours of food processing environments, creating lasting bonds.

Overall, food-grade epoxies offer a compelling choice for filter bonding, enhancing the safety and quality standards in the food industry. If you are interested in knowing more about food-grade epoxy for filter bonding, feel free to contact us.

Utsav Shah

Utsav Shah is a 34-year-old entrepreneur with a passion for scientific discovery. Utsav’s journey began with a deep dive into materials science, earning degrees from USC and the Institute of Chemical Technology. He’s the visionary founder of Kohesi Bond, a top-rated adhesive manufacturer, and Cenerge Engineering Solutions, a leader in heat exchangers and cryogenic pumps. With over a decade of experience, Utsav consults across various industries, ensuring they have the perfect adhesive solution for their needs. Connect with him on LinkedIn!