Steven Lloyd

This brings to mind two possible issues, the effectiveness of the coating and the identity of the fiber. Hardening does not provide safety. The rigidizer should glue the fibers together near the surface but not the inner material to retain insulating abiility. From the application and curing process, their rigidizer is closer related to Rutland 610 than a rigidizer. From what you posted, Devil Forge has acknowledged that it is not a rigidizer as non is needed. On searching thier site and the web, I have yet to find anything resembling an SDS which I understand is a requirement for international shipping. If the coating is only Rutland 610 then its service temp is limited to 2000F. Itself has silica fibers and emits toxic fumes. If the supplied wool is not just kaowool then it too may have other health concerns. I would recommend requesting SDS safety data sheet on both before using them. Note that any serious issues would have to be processed through Lithuanian law.