Ansell Alphatec Microchem 68CFR Hooded Coveralls. 4XL MICROCHEM by AlphaTec? CFR is a flame retardant and antistatic fabric offering protection from particulates and light liquid spray or splash without compromising worker protection in the event of a flash fire. Flame retardant treated fabric with PVC barrier film offering wearers protection from liquid chemicals Versatile in most applications where there is the need for protection from chemical spray without compromising wearer protection in the event of a flash fire Optimized body fit improves wearer comfort and safety Highly visible bright red color to improve worker safety