Polywater® AFT™ Spray Foam Sealant, FOAM CONDUIT SEALANTSDescription An easy to use, fast setting and durable spray foam sealant for system hardening. Sprayable foam sealant is a semi permanent, water and air tight solution that helps protect mission critical equipment from moisture, water, rodents, gasses, etc. Polywater AFT two part foam water sealant seals cable networks with faster installation time and higher performance when compared to duct putty or insulating hardware store foam sealants. Polywaters