Pyro-Putty® High Temperature Ceramic-Metallic Putties are used to seal joints and repair defects in cast aluminum, cast iron, steel and stainless steel. Formulated using the most advanced organic and inorganic-ceramic resin technologies, these advanced materials resist temperatures to 2000 °F. Applications for Pyro-Putty® are widespread and found typically in the aerospace, automotive, foundry, heat treating, incineration and power generation industries.