... bubbles,acid-resistance,good adhersion. 1,Material Ratio in Grinding:Pre-grinding Powder: 100Water: 40-502,Specification:These products are 140 ... 100-mesh sieve. 4,Usage:On using A-8005 firstly pre-grinding powder and water should be soaked for 24 hours ... enameling twice to achieve an ideal effect. Acid Resistance Enamel Pre-grinding Powder for Power Plant Corrugated Plates A-8005 made ...