SV-311 Polyurethane Sealant for Construction
Short Description:
Description SV-311 is a one component polyurethane high modulus flexible sealant formulated as reliable bonding adhesive and joint sealant for construction industry, particularly where a higher modulus and lower movement capacity are required for joints with low or medium movement, e.g. connection joints between floor/stairs and wall, connection joints between floor and machinery, seam sealing / sealing of pipe ducts / ventilation systems, multipurpose joints in metal and wood construction w...
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Description
SV-311 is a one component polyurethane high modulus flexible sealant formulated as reliable bonding adhesive and joint sealant for construction industry, particularly where a higher modulus and lower movement capacity are required for joints with low or medium movement, e.g. connection joints between floor/stairs and wall, connection joints between floor and machinery, seam sealing / sealing of pipe ducts / ventilation systems, multipurpose joints in metal and wood construction work.
Key Features
1. Non-sag consistency
2. Excellent adhesion to most common building materials
3. High tear strength
4. High tensile strength
5. Less fluid migration to porous material
Technical data sheet
| Test standard | Test project | Unit | value |
| GB13477 | density | g/m³ | 1.20±0.1 |
| GB13477 | Flow, sagging or vertical flow | mm | 0 |
| GB13477 | surface drying time（25℃，50%R.H.） | min | 30 |
| Curing speed | mm/24h | 3 | |
| GB13477 | Durometer Hardness | Shore A | 25-35 |
| GB13477 | 100% tensile strength | Mpa | ≤0.4 |
| GB13477 | The elastic recovery rate | % | 80 |
| Maximum seam width | mm | 35 | |
| Minimum seam width | mm | 8 |
Color
White, black, grey
Package
300ml plastic cartridges and 600ml in sausage
Shelf life
9 months
Note
If you want the TDS or MSDS or other details, please contact with our sales person.
Matters needing attention
When applied in the immersion situation, the polyurethane sealant should be fully solidified before the flood.
It can be tinted, but it is recommended not to use solvent based materials such as colored enamels, which must be tested in the field to ensure compatibility.
Wet coating technology is not allowed, and no solvents, water, detergents or soap solutions are recommended.
Before consulting Siway technicians, the use of high content chlorine disinfection areas such as swimming pools was not allowed.
Shading performance
SV polyurethane construction sealants can be used in a traditional way, including epoxy resins and acrylic acid coatings, after sufficient drying. Paint containing high solvent elements such as gloss enamel or high oil base paint will cause the surface reaction and soften the surface.
Fire prevention, health and safety
SV polyurethane construction sealant is not easy to burn.
Prevent direct contact with skin and eyes; If there is an accident, please contact the doctor.
If the skin touches, remove contaminated clothing and clean the skin thoroughly for 15 minutes or see a doctor.
Pretest procedure
In order to eliminate the potential problems of the application field, Siway can on the application of the adhesive are all kinds of material samples, determine the best adhesive used in advance, to develop the best surface preparation methods to obtain the best adhesive performance. Please consult the Siway technology
The construction of the
A,Cleaning the surface
Use a steel brush to remove all dirt, dust, and loose material, while cleaning all the oil with the cleaner. All previous adhesives must be cleaned by scraping, cutting, friction, blowing or proper cleaning.
B,. Coat
SV polyurethane construction sealants usually do not need to be coated. For optimal performance, you can choose the recommended substrate. When the bottom coating is applied, the complete substrate should be smooth. It is not allowed to form a substrate, and the excess coating on the base should be fully dispersed to ensure that no coating is formed.
C, mixed
The polyurethane sealant does not need to be mixed, directly used.
D, coating operation
With sufficient pressure, the JS polyurethane construction sealant coating is applied to the substrate surface to ensure the thickness of the coating is not less than 1mm.
E, construction temperature
Recommended products under 5 ℃ ~ 35 ℃ ambient temperature, the construction is preferred.
