| 摘要 |
PURPOSE:An air dusting material useful for crack repair for gas duct, etc., comprising thermosetting resin powder and refractory fine powder, usable in a low- temperature range. CONSTITUTION:The desired dusting material comprising (A) preferably 0.3- 30wt% thermosetting resin powder (e.g., phenolic resin), (B) refractory fine powder (e.g., fine powder of agalmatolite), and, if necessary, (C) an inorganic binder (e.g., phosphate), having a particle size preferably adjusted to >=90wt% particles with <=74mum.
|
