What is Epoxy Adhesive Glue?
Epoxy adhesive glue is a two-part adhesive composed of a resin and a hardener. When mixed together, they form a chemical bond that hardens over time, creating a strong and durable bond between two or more materials.
Epoxy adhesive glue is available in different formulations, including slow-curing, fast-curing, clear, opaque, and colored, to suit various applications.
How Long Does Epoxy Adhesive Glue Last?
The lifespan of epoxy adhesive glue depends on several factors, such as the formulation, the environmental conditions, and the application method. In general, most epoxy adhesive glues have a shelf life of six months to two years, depending on the manufacturer's recommendations.
Once opened and mixed, the working time of epoxy adhesive glue is typically 30 minutes to two hours, depending on the formulation and the temperature.
Factors that Affect the Lifespan of Epoxy Adhesive Glue:
Several factors can affect the lifespan of epoxy adhesive glue, such as:
- Temperature and humidity: Epoxy adhesive glue works best in temperatures between 60°F to 80°F (15.5°C to 26.7°C) and low humidity. Excessive heat and moisture can accelerate the curing process and reduce the bonding strength.
- Exposure to UV light: Epoxy adhesive glue is sensitive to UV light and can degrade when exposed to direct sunlight or artificial UV light.
- Contamination: Dust, grease, oil, and other contaminants can affect the bonding strength of epoxy adhesive glue.
- Mixing ratio and application method: Mixing the resin and hardener in the wrong ratio or applying the adhesive unevenly can affect the curing process and bonding strength.
How to Store Epoxy Adhesive Glue?
To ensure the maximum shelf life and usability of epoxy adhesive glue, follow these storage tips:
- Store the adhesive in a cool, dry, and dark place, away from direct sunlight, heat sources, and moisture.
- Keep the containers tightly closed to prevent air and moisture from entering.
- Store the adhesive upright to prevent settling or separation of the resin and hardener.
- Label the containers with the date of purchase and expiration date.
Tips to Prolong the Lifespan of Epoxy Adhesive Glue:
- Follow the manufacturer's instructions for the recommended mixing ratio, application method, and curing time.
- Use the adhesive within its recommended shelf life and working time.
- Clean and dry the surfaces to be bonded before applying the adhesive.
- Avoid exposing the bonded surfaces to excessive heat, moisture, or UV light.
- Consider using a primer or surface conditioner to enhance the bonding strength and durability.
