Gypsum board ceiling expansion joints how to deal with, is a direct patch, or the first gypsum powder stitched in the patch bar. Is it with white latex
First with gypsum powder slit, in the white latex paste gypsum board caulking paste is a fine semi-water gypsum powder (plaster of graffiti), a variety of additives mixed with gypsum board patchwork processing materials. With high bonding strength, shrinkage deformation is small, good fit, excellent construction performance and so on. Applicable to gypsum board patchwork, fill the nail, large gap.
Gypsum board caulking paste mainly by the Western countries to introduce China, since the late 90s of last century in the gypsum board project decoration application. At present the main manufacturers are: Lafarge, can be resistant, dragon, Prades, Jason and so on.
□ Main components: plaster, calcium carbonate and additives. □ grass-roots treatment: grass-roots should be a solid without loose, no oil floating ash. □ mixing equipment: mortar consistency to the construction requirements prevail, stirring to be uniform, stirring after 5 minutes and then stirring is appropriate. □ Construction matters: After mixing the mortar used in the use of time, after the barrel should be cleaned again after the preparation of materials, more than the use of time will be cured scrapped. Repair leveling more than 5mm should be sub-sub-scratch. □ Construction temperature: construction temperature above 5 ℃, the curing process is not less than 0 ℃ □ storage and transportation: stored in a cool dry place, shelf life of 12 months. No caking phenomenon, can continue to use. Products non-toxic non-flammable, storage and transportation can be "non-dangerous goods rules" for.
Use putty cramps and then use white latex paste seam.
