Modified silane MS sealant is a one component non sag sealing material, which is made of modified silane prepolymer with international leading technology as the main raw material. During construction, glue the joints with glue gun to form a sealing layer with coating and good displacement.
GENERAL
Modified silane MS sealant is a one component non sag sealing material, which is made of modified silane prepolymer with international leading technology as the main raw material. During construction, glue the joints with glue gun to form a sealing layer with coating and good displacement.
The prefabricated exterior wall of PC building is assembled in blocks, with a large number of assembly joints, which are easily penetrated by rain. Therefore, PC exterior wall sealant is the first line of defense for waterproof of exterior wall slab joints and one of the keys to PC building quality control.
PC building special modified silane MS sealant of SINO-SINA meets all the needs of building exterior wall sealing and waterproof. It has incomparable advantages over other sealing products in terms of coating and anti pollution. It is a professional choice for builders at home and abroad, which will provide long-term sealing protection for PC exterior wall.
FEATURE
●Provide long-term sealing protection for PC exterior wall
Modified silane sealant has good compatibility with concrete and excellent performance in waterproof, weather resistance, low temperature flexibility and so on.
●Displacement characteristics of flexible PC exterior wall
PC building exterior wall joints will be deform and displace due to the influence of external environment such as thermal expansion and cold contraction of components, wind load, earthquake and so on. Joint displacement and deformation may lead to cracking and peeling of sealant. Therefore, the sealant must have sufficient stress relaxation ability to follow the expansion, reduction and shear deformation of the joint.
MS sealant of SINO-SINA is a grade 20 low modulus product with good flexibility. For 10-35mm concrete joints of general PC buildings, it can ensure the integrity under displacement and maintain good performance of water sealing and air sealing.
●Perfect fit for building exterior wall painting
Modified silane MS sealant of SINO-SINA does not contain silicone oil. It can closely fit with all kinds of exterior wall coatings and brush smoothly, so as to ensure that PC buildings have the same colorful appearance as ordinary buildings.
●Completely remove wall contamination
If silicone sealant is used for exposed joints of PC exterior wall or curtain wall joints, silicone oil in the sealant will precipitate and penetrate into the surface of exterior wall or curtain wall, and diffuse on the wall under the action of water and surface tension. After being attached by pollutants in the air and washed by rain, obvious black strip stains are formed, which seriously affects the beauty of the building.
Modified silane MS sealant of SINO-SINA does not contain silicone oil and there is no risk of oil diffusion, which can keep the building clean and beautiful all the time. If various toners are added, colorful lines can be drawn for the building.
I Scope of application
It is mainly used for the joints between concrete precast slabs and the joints between PC slabs and window frames in PC buildings.
II Performance features
Good stability: excellent weather resistance, heat resistance, cold resistance and dynamic durability;
Low viscosity: long operation time, good performance in low or high temperature, high early strength, easy construction and decoration;
With special primer: it can reliably bond with a variety of substrates; Good water tightness and air tightness, and can follow the displacement at the joint;
Good coating performance: no oil flashing, no pollution to the substrate, and a variety of coatings can be applied on the surface;
PERFORMANCE
III Technical index
Implement the standard requirements of JC/T881-2001 Sealant for Concrete Building Joints.
Programs | Technical index | Typical value | |
20LM | |||
Sag (type N)mm | Vertical | ≤3 | 0 |
Horizontal | ≤3 | 0 | |
Elastic recovery rate,% | ≥60 | 80 | |
Tensile modulus | 23℃ | ≤0.4 | 0.3 |
-20℃ | ≤0.6 | 0.33 | |
Constant elongation adhesion | No damage | No damage | |
Fixed elongation adhesion after immersion | No damage | No damage | |
Adhesion after hot pressing and cold drawing | No damage | No damage |
IV Construction process
Base cleaning Base cleaning and pad material Patterned paper pasting Base treatment and primer Glue Surface modification Tear off patterned paper
V Construction precautions
1. It must be used together with the special primer to ensure that the primer is evenly and fully coated on the substrate.
2. The construction temperature should be 5-35 ℃, and the substrate temperature should not exceed 50 ℃.
3. Pay attention to the embedding depth and section shape of the liner material.
4. Please strictly follow the operation process to avoid bonding failure.
5. Ensure that the sealant is within the warranty period before use.
6. The sealant before curing shall avoid contact with eyes and skin. In case of contact with skin, first scrub with soapy water or alcohol, and then rinse with clean water; In case of contact with eyes, rinse with plenty of water first, and seek medical treatment immediately if necessary.
7. Insufficient ventilation or low humidity environment will slow down the curing speed.
8. Do not discard uncured sealant and primer into sewer, water or soil.
9. The glue joint shall be full without bubbles and shall not be repaired later. The depth and shape shall meet the design requirements.
VI Packaging and storage
Type | Single component | |
Colour | Black, white and gray (color can be adjusted according to site requirements) | |
Packing specification | 600ml | 770g |
Packaging form | Flexible packaging with Aluminum foil paper |
1. During transportation, keep away from moisture, rain, sun, high temperature and heat source. Handle with care and do not squeeze or collide.
2. The product shall be stored in a ventilated, dry and cool place to prevent direct sunlight. 3. Isolate the fire source and keep away from the heat source. The storage temperature should be 5-30 ℃
4. The shelf life of sealed product is 12 months.
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