Complex sentence: It is a remarkable barrier against water, oxygen and aromas, has superior chemical resistance to alkalis and acids, is insoluble in oil and organic solvents, has very low moisture regain and is impervious to mold, bacteria, and insects.
Split into simpler sentences: It is a remarkable barrier against water, oxygen and aromas. It has superior chemical resistance to alkalis and acids, it is insoluble in oil and organic solvents, has very low moisture regain and is impervious to mold, bacteria, and insects.