gypsum mould--used to make gypsum products (sweet building materials)

Process of gypsum cornice production by using fiberglass mold
1) materials should be prepared in advance:

     fiberglass mold, scraper, worktable, water, glass fiber, gypsum powder, release oil, brush, shovel,      agitation barrel (with volume of 11 liters), plastic rope

2) 6 steps to make gypsum cornice by using fiberglass mold:
Step1 :brush release oil

       brush release oil on mold gently.

Step 2: pour gypsum slurry

      In order to obtain the best gypsum cornice with smooth surface, it needs to touch the mold back and forth for several times while pouring slurry for the first time.

Step 3: spread glass fiber

       Wash hands clean and then grab some glass fiber to spread on the mold evenly. After that, press glass fiber with slurry pouring on them and flatten the surface. Trim glass fiber in order to make them all be put on the centre of mold.

Step 4: tie a rope

       Tie up a pinch of glass fiber with a rope on the end of mold and then flatten the surface with a scraper. Wash the scraper clean after that.

Step 5: shovel plaster off the edge of mold

       When shovel plaster off the edge of mold, the angel between wrist and the side of mold should be 45 degrees.

Step 6: release gypsum cornice from mold

After 30 minutes later, hold the rope with one hand and carry one side of cornice with the other hand to pull up gypsum cornice from mold. Finally, gypsum cornice production is finished.