AES wool Rigiform shapes and boards are manufactured from Insulfrax or Isofrax alkaline earth silicate wools or mineral wool, which have high solubility in simulated body fluids and hence carry no hazard classification
These wools are blended with specially selected organic binders to give flexible insulating shapes with exceptional characteristics. The vacuum forming manufacturing method permits considerable freedom to vary shape, thickness, density and hardness. Flexiform shapes and felts often provide the most economical answer to producing large quantities of parts in simple or complex configurations for a wide range of applications up to 1200 °C.