Teaching

Plastic bottles

are easy to transport and thus have a low-energy consumption. The material is weather- and rain- resistant, pliable, elastic and resistant to breakage. Plastic has good strength, good temperature, heat- and chemically resistant.

Glass bottles

are odourless and rain resistant. The alkali and acid resistance is very good and they are easy to clean (water). They are heat resistant and have good flexural and compressive strength. The light transmittance is high and gives interesting light effects.