Resin glue is generally obtained from various shrubs and trees. Whether resin glue is toxic or not depends on what kind of resin glue it is. Some resin glues are harmless to the human body, such as epoxy resin glue. Some resin glues are harmful to the human body. For resin glues that are harmful to the human body, you must take protective measures when you come into contact with them. It is best not to have direct contact and wear gloves and masks. Epoxy resin adhesive generally refers to an adhesive made with epoxy resin as the main body. Epoxy resin adhesive generally should also include epoxy resin curing agent, otherwise the adhesive will not cure. Epoxy resin adhesives can be classified according to their main components, professional uses, construction conditions, and packaging forms. Epoxy resin glue is divided into soft glue and hard glue. 1. Epoxy resin soft glue: It is a liquid, two-component, soft, self-drying adhesive that is colorless, transparent, and elastic. It will automatically return to its original shape when the surface is lightly scratched. Suitable for sign decoration on polyester, paper, plastic, etc. 2. Epoxy resin hard glue: It is a liquid, two-component hard glue that is colorless and transparent. It is suitable for metal signs and can also be used to make various high-end decorations such as crystal buttons, crystal bottle caps, crystal wooden combs, crystal handicrafts, etc. There is no unified classification of epoxy resins at present. They are generally classified according to strength, heat resistance level and characteristics. There are 16 main types of epoxy resins, including general-purpose adhesives, structural adhesives, heat-resistant adhesives, low-temperature resistant adhesives, underwater and wet surface adhesives, conductive adhesives, optical adhesives, spot welding adhesives, epoxy resin films, foam adhesives, strain adhesives, soft material bonding adhesives, sealants, special adhesives, cured adhesives, and civil engineering adhesives. There are several ways to classify epoxy resin adhesives in the industry: 1. According to its main components, it is divided into pure epoxy resin adhesive and modified epoxy resin adhesive; 2. According to its professional use, it is divided into epoxy resin adhesive for machinery, epoxy resin adhesive for construction, epoxy resin adhesive for electronic eyes, epoxy resin adhesive for repair, as well as adhesive for transportation and adhesive for ships, etc.; 3. According to its construction conditions, it is divided into room temperature curing adhesive, low temperature curing adhesive and other curing adhesive; 4. According to its packaging form, it can be divided into single-component adhesive, two-component adhesive and multi-component adhesive, etc.; There are other classification methods, such as solvent-free adhesive, solvent-based adhesive and water-based adhesive. However, classification by components is more commonly used. |
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