Prefabricated buildings are composed of some or all prefabricated structures. During the splicing process, there will be a large number of assembly joints. The treatment of joints is a key issue that prefabricated buildings need to address. Therefore, this article will focus on the top five common problems in waterproofing prefabricated buildings.
1. Is motar suitable to seal the joints of the exterior walls of prefabricated buildings?
No. Mortar caulking is a hard connection method. The joints of the exterior wall panels are affected by factors such as thermal expansion and contraction, which may cause cracks and water leakage at the joints between the mortar and the wall. Therefore, a flexible sealant is more suitable when caulking.
2. Which sealant should choose for the joints of the exterior walls of prefabricated buildings?
When concrete panels are affected by temperature changes, they are prone to tensile or compressive displacement. If the elasticity of the sealant is too low or the strength is too high, it will cause cracks on the bonding surface between the concrete and the sealant, and lose the sealing and protection functions. Therefore, it is very important to choose a sealant with low modulus, high elongation and good durability, such as MS sealant.
3. What should pay attention to before the caulking construction of prefabricated buildings?
Before large-scale construction, the construction personnel should first carry out a part of the joint construction in a small range according to the construction requirements, and conduct hand stripping test after sealant curing, investigate the bonding between the sealant and the substrate, and then carry out large-scale construction after confirming that there is no problem.
4. What is the difference between “modified silane” and “modified silicone”?
There is no difference in essence, they are different names for the same type of product.
5. What properties does the prefabricated buildings caulking sealant need to have?
1. Excellent adhesion
2. Anti-displacement
3. Weather resistance
4. Anti-pollution
In conclusion, TM506 Prefabricated construction MS Polymer is perfectly suitable for prefabricated structures caulking, suitable for the sealing of the high movement shrinking joints.
- Convenient construction, can make sure the high efficiency working.
- Excellent weather resistance, more than 30 years serving life.
- No shrinkage, no pollution and penetration, keep the wall permanent beauty.
- Good adhere to many substrates, and long water proofing performance.