Epoxy hardener is a liquid that is basically combined with epoxy for use. If these two substances are combined with each other, they can maintain their properties only for one hour and after this period, they rarely turn into a jelly state and dry, which is why it is said that they have a pot life; Therefore, these two substances should be combined only when needed. Also, these two materials should be stored in two separate containers at a temperature of 10 to 30 degrees Celsius.
Epoxy Harder Features
Epoxy hardener has features that make it important today as a raw material for chemical products. These features include: very high adhesion, increased resistance to corrosion and chemical reactions, very high resistance to environmental humidity, very good performance against high and low temperatures, increasing the lifespan of structures that are in contact with water, the ability to bake Epoxy under water, specifying the time for the material to act with different types of hardener, after the hardener and epoxy are completely washable, and its quality will not change over time, and it can be attached to any surface such as wood, metal, and glass.
Application of Harder Epoxy
Epoxy hardener as a catalyst will cause epoxy to work at any temperature. This compound contains molecules that react with the resin group and is known as a cross-linking agent. In general, epoxy resins need drying materials (hardener) for hardness and processing. Epoxy hardener is based on substances such as phenalamines and is used to dry and process epoxy at high or low temperature and in humidity. Its molecules enable the resin molecules to bond together and form a three-dimensional network. Typically, the epoxy hardener molecules are much smaller than the resin molecules and therefore have a low viscosity. This compound actually enhances or controls the curing reaction of the epoxy resin. There are different types of this product and according to their application, the drying time and operation time are different. Three hardeners that are used in combination with resin include; Hardeners are linear polyamine (aliphatic), cycloaliphatic and aromatic. In fact, these linear polyamides can be combined with resin at any temperature. Epoxy hardener is divided into two categories: alkaline and acidic.
The use of epoxy Harder
To combine the epoxy hardener with the relevant material, it is usually necessary to combine these two materials in a one-to-one ratio or in a two-to-one ratio. After combining the two desired materials, they should be mixed for 5 minutes in a specific direction and at a specific speed, so that they are completely combined with each other, and for better quality, this mixture should be rested for 30 minutes. In order to increase the quality and efficiency of this material, it is better that the surface in question is free of any pollution, grease and moisture to increase the adhesion and prevent the resulting material from peeling and yellowing.