Food Grade Epoxy Adhesive Formula

This epoxy adhesive is specifically designed for food contact applications, offering a robust bond to metals, ceramics, and glass. It provides exceptional resistance to temperature variations and moisture, ensuring reliable performance in packaging and sealing applications.

Technical Specifications

  • pH Level: Neutral at curing
  • Shelf Life: 12 months when stored in a cool, dry place
  • Batch Size: 200 L
  • Processing Time: 2 hours across all phases
  • Temperature: 60°C for Resin Phase, 40°C for Curing Phase
  • Storage: Store in sealed containers at 15-25°C with humidity levels below 60%
  • Viscosity: 8000-12000 cps
  • Certification: FDA 21 CFR 175.300, EU Framework Regulation (EC) No 1935/2004

Ingredients

IngredientPercentageFunction
Bisphenol A Epoxy Resin60.0%Primary resin providing strong adhesive properties
Polyamide Curing Agent35.0%Curing agent to crosslink the epoxy resin
Silica4.0%Thickening agent to enhance viscosity and stability
Food Grade Dye1.0%Provides color tracers for application verification

Manufacturing Process

Resin Phase

  1. Heat Bisphenol A Epoxy Resin to 60°C in a double jacketed mixing vessel for 30 minutes.
  2. Add silica while continuously stirring at 500 rpm using a high-shear mixer.
  3. Monitor viscosity, aiming for a range of 8000-12000 cps.

Curing Phase

  1. Slowly blend in Polyamide Curing Agent at 40°C, maintaining agitation at 300 rpm.
  2. Add food-grade dye and mix until homogeneously distributed for 20 minutes.
  3. Check for homogeneous dispersion under UV light.

Usage Instructions

Apply an equal mixture of parts A and B evenly on the surfaces to be bonded. Allow to cure at room temperature for 24 hours before exposure to high moisture or temperature environments.

View full formulation details on AIFormulator