Firmus phenolic resinae est flavo, transparent, amorphous massa substantia, quia continet liberum phenol et rubro, in mediocris gravitatem ex entity est de 1.7, solutum in alcohol, insolubilis in aqua, firmum est aqua, infirmi acidum, infirmi alkali solutio. Resina de phenol et formaldehyde polycondensation, neutralization et aqua lavare sub catalyst conditionibus. Ob diversas catalysts lectus potest dividitur in duo genera: thermosetting et thermoplastic. Resinae resinae habet bonum acidum resistentiam, mechanica proprietatibus et æstus resistentia, et late in anti-corrosio ipsum, adhesives, flamma retardant materiae, molere rota et alia industries.