Armaflex lagging tape is 3mm thick with an adhesive back. Just wrap it around the pipe a few times, and you have a ready insulated pipe! This pipe lagging tape is also extremely versatile and can be a draught excluder on doors and windows. The tape is tailor-made for use with all Armacell Armaflex Class O Insulation products, the industry leader in technical insulation. As such, the Armaflex Pipe Insulation Lagging Tape is the ideal product to give your installation a professional finish. Also, being made from Class O Nitrile foam rubber, the tape prevents heat loss from insulated joints, so ensuring the full length of your pipes is insulated. Insulating pipe and ductwork are one of the most effective ways to protect the value of an investment. Aside from restricting energy loss, insulation also prevents condensation and the associated risks of pipe corrosion and mould growth.