because Baotou GRC There are gaps between components and between components and buildings, which need to be caulked with caulking agent. Before caulking, clean the greasy dirt in the gap. If necessary, flush the floating ash and loose sand ash with a fine water pipe. Scrape the prepared caulking agent at the gap in batches with mud board or rubber knife, and squeeze tightly. Wrap the sponge with plastic scraper or rubber scraper, and gently scrape off the gap GRC The caulking agent PVC line pipe on the component shall slip to achieve the effect of smoothness, straightness and density. After sliding the joint, carefully wipe the caulking agent left on the GRC component surface in the residue with a square porous sponge, and the caulking is successful.
Detailed method for use of component caulking agent:
1、 Prepare tools and materials
1. When the water absorption of old walls or high-temperature brick joints is too strong in summer, wet water on the wall.
2. Scrape the mixed caulking agent on the ceramic brick wall with mud board or rubber knife.
3. Wrap the thin sponge with a rubber scraper or a plastic scraper, gently scrape off the feed bucket on the brick surface, and mix it evenly before reuse.
4. Use PVC threading pipe, polishing bright bamboo pieces and other tools to achieve smoothness, straightness and compactness.
5. After the sliding joint is completed, the residual caulking agent on the brick surface turns white and looks dry. At this time, carefully wipe the brick surface with a square porous sponge. Carefully wipe the brick surface and paste ceramic tiles
An important process. Clean the wall Once the sealant is dried on the brick surface, it is difficult to clean. Clean the wall with a sponge, quickly and wipe it clean; If the sponge block is dirty, clean it with clean water and wipe the brick surface. Yarn cleaning wall, cotton yarn is easy to be polluted, not easy to clean and dry. 6. Clean the wall so that the caulking is successful without special maintenance.
2、 Base course preparation:
1. Clean the greasy dirt, floating ash and loose sand ash that need caulking.
2. Flush along the seam with fine water pipe when necessary.
3. The new tiled wall can be directly caulked without the above process.
3、 Material preparation requirements:
1. Prepare about 2.5kg per square meter (wall tile area), and the water cement ratio is about 1:4. It is processed evenly, thickens slightly after 5-10 minutes, and can be used after mixing with water.
2. Caulking agent shall not be mixed with too much water and raw powder.
3. The mixed caulking agent shall be used up within 5-6 hours.
4、 Precautions:
1. The joint sealant shall be rain proof and damp proof during storage and transportation, and the construction temperature shall be above 3-5 ℃.
2. Construction before and in the rain is strictly prohibited to prevent the free calcium in the face tile adhesive from overflowing and affecting the wall decoration effect.
3. It is strictly prohibited to use metal tools to slide joints to prevent rust from polluting the caulking agent. Long term use of stainless steel tools will also pollute the joints.
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