Fiberfrax® Vari-Form™ castable materials provide casting mixes that can be applied in small areas such as furnace access and site doors, tube sheets, and as a refractory backup. Vari-Form is a dry mix available in two density grades of 14-18 kg and 23-27 kg/cubic foot. Water is added to the dry product at the job site and mixed thoroughly. It is then simply poured and trowelled into the area to be insulated. The mix sets in about 18 hours and can then be heated to operating temperature.
Fiberfrax Vari-Form products also possess the advantages inherent to other Fiberfrax Specialties ceramic fibre insulating materials:
The Fiberfrax® Specialties range of products includes Fiberfrax mouldables, pumpables, caulks, coating cements, rigidisers, tamping mix and Moist-Pack™ blanket.