Production and use of epoxy resin customers know, epoxy resin and curing agent with the use of its practical value can be very good, so that it can have a variety of substances with high adhesion, electrical properties and chemical stability, made of coatings, composites, casting materials, adhesives and molding materials, etc. Compared with other common materials have more advantages.

       However, in its production and use of the links always around the epoxy resin blistering, curing agent molecular amine moisture absorption leads to the construction efficiency is affected, is not conducive to the maintenance of the product's appearance, easy to reduce the customer's degree of trust.

       At this time, if you join the epoxy resin defoamer will not appear these situations, add defoamer we are able to witness the epoxy resin system that produces a buildup of large bubbles, micro-foam to the naked eye visible speed disappeared, and will not appear twice the problem of bubbling.

       But there are still people will be skeptical: this method is useful? I don't know what ingredients are in it, what usage and dosage should be noted and so on. Today, I would like to share with you the relevant knowledge.

Let's first understand why the epoxy resin why blistering?

There are many reasons, which can be analyzed according to the specific situation.

        First, epoxy resin in the mixing, pouring, flow and filtration, often because there is air mixed into it;

        Secondly, because of the needs of production and use process, epoxy resin needs to use water as a diluent, but in the emulsion polymerization need to use a certain emulsifier, the surface tension of the emulsion system will also be affected by the reduction of surface tension, resulting in foam.

Why do we need epoxy resin defoamer after foaming?

1. Composition: Produced according to the characteristics of epoxy resin foaming, it is mainly composed of silicone, modified silicone polyether compounded from a variety of chemical components, has a good effect on the microfoam.

2. Antifoaming effect: epoxy resin defoamer has good effect on the foam produced by epoxy resin, AB adhesive, floor paint and other systems, it has the advantages of low dosage, fast defoaming speed, long foam suppression time, no oil spot, etc. It will not affect the film-forming property of the product when added to the foaming system, and it will not produce shrinkage, fish-eye and other problems.

3. Optional products: In addition to epoxy resin defoamer, we can also choose oil-based epoxy resin defoamer, which is a self-emulsifying, good dispersion, in the water-soluble macromolecules and medium and low high-viscosity system can be defoamed and stable defoamer, will not affect the curing of epoxy resin and the curing time, the color of the appearance of the impact of the appearance of the color, such as the difficulty of maintaining its original transparency and so on.