Under what condition do BFL-Mastix bands resist to chemical aggression ? 

The BFL-Mastix material is chemically neutral and insensitive to the concrete alkalinity. The BFL-Mastix material is highly resistant against de-icing salt, acid or chlorinated water in swimming pools. In a confined position, the bands are highly resistant against chemical aggression by hydrocarbons. The core resists against ammonium sulphate 10 g/l, ammonium chloride 10 g/l, sodium oxide 30 g/l, ammonia 25 %, acetic acid 20 %, sulphuric acid 50 %, pure oleic acid and ethyl alcohol (ethanol).