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The Main Points Of Epoxy Resin Construction?

Jun 12, 2020

All polymer compounds containing epoxy groups in the molecular structure are collectively called epoxy resins. The cured epoxy resin has good physical and chemical properties, it has excellent adhesion strength to the surface of metal and non-metallic materials, good dielectric properties, small set shrinkage, good dimensional stability of products, high hardness, It has good flexibility and is stable to alkali and most solvents. Therefore, it is widely used in various sectors of national defense and national economy. It is used for casting, impregnation, laminates, adhesives, coatings, etc. .

First, use a dry cloth or sandpaper to remove the dust, grease, rust, etc. on the surface, and then wipe with a cleaning agent such as acetone or trichloroethylene to clean the surface. Then, it can be used after being fully stirred in proportion; in order to ensure the effect of use, it can also be mixed in vacuum. Use up within the operable time range, otherwise it will solidify and result in wasted material. After gluing, curing at room temperature for 2-6 hours; curing at 40℃ for 1-3 hours; after ten days of sizing, the adhesive strength is better. For cold and humid days, it needs to be heated to 15-25℃ for indoor use. When bonding straight or upside-down surfaces, you need to use adhesive tape to help paste or 502 positioning.

Epoxy resins cannot be cured by themselves, and the same type of epoxy resin curing agent should be purchased at the time of purchase. Generally, the ratio of 1:1 installation is evenly blended, applied to the parts that need to be bonded or sealed, and cured at room temperature for 24 hours