Furan resin series materials (mortar, mortar, concrete, glass fiber adhesive) exhibit excellent resistance to acids, alkalis, and organic solvents, but are not resistant to strong oxidizing agents like concentrated sulfuric acid. They have higher temperature resistance than other resin series materials. Their acid and alkali resistance is superior to phenolic and epoxy resin material series. However, their bonding strength and flexibility, as well as curing speed, are lower than those of epoxy resins.