15 Years manufacturer SV-311 Polyurethane Sealant for Construction Wholesale to Morocco
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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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.
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||Flow, sagging or vertical flow||mm||0|
|GB13477||surface drying time（25℃，50%R.H.）||min||30|
|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|
White, black, grey
300ml plastic cartridges and 600ml in sausage
If you want the TDS or MSDS or other details, please contact with our sales person.
Watch how to use the Zefal tire sealant to repair a punctured tire whilst out on the bike. The Zefal tire sealant is used to repair a flat after it occurs rather than filling your tires with a sealant beforehand. This video shows you how to carry out the repair quickly and efficiently, getting you back on the road in super quick time.
This video show us how to use the liquid silicone rubber to make mould by pouring way.
A. The operation of pouring way
Pouring way is suit for the product with the smooth surface and simple pattern, no need mold line. The soft silicone rubber will be choose for pouring operation, easy operation and demould, won’t destroy the original mold.
Step 1 Handle the original mold
Choose a prefect original mold, Manually polish and smooth the model, clean the surface and dry it. Fixed the original mold in a smooth wooden board, and using 4 pieces wooden board around it to make a square frame
Brushing the release agent evenly on the surface of original mold and wooden board.
4 kinds release agent we often used in condensation silicone mold: Vaseline, soap water, detergent, liquid paraffin.(silicone oil also can be used as release agent)
Step 2 Weight part A & part B according to the mix ratio recommended
Weighting two parts in Electronic scale with mix ratio 100:2 or 100:5.
Eg: Take 100g part A and 2g part B
Step 3 Stirring evenly
Remember to mix part A and part B evenly, otherwise the silicon rubber will be partly solidified and bring problems in your final operation. What’s more, the finished molds will meet a short life. All of these will cause a waste of silicon rubber.
Step 4 Vacuum pumping
For releasing the air bubbles, after mixing evenly, put the mixture in to vacuum pumping for 3-5 minutes, without exception, this step takes less than 10 minutes. Otherwise, it will cause cross linking reaction, and no more further steps will be available.
Step 5 Pouring
Pouring the silicone rubber to the frame from a corner, make the silicone rubber flow to the frame smooth.
Step 6 demoulding
After 3-5 hours later, can demould the silicone mold, It’s will be better for mold to demould after 24 hours
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