Sika Boom® AP and FR are fast curings, one component, polyurethane foam, highly suitable for multiple application with fire resistance capability. Sika Boom® AP/FR features a high expansion rate of up to 60 times its size. It is easy to use and apply, using only the nozzle provided with the canister and putting pressure on the handle. In addition, Sika Boom® FR provide protection against fire and sound dampening to the joint. It is packaged into 500 millilitres and 750 millilitres canister respectively and has a shelf life of up to 12 months from the date production if stored properly in undamaged, original, sealed packaging. It is advised to store Sika Boom AP/FR in cool and dry conditions, protected from direct sunlight and at temperatures between +5°C and +25°C.