Wholesale 100% Original SV-313 Multipurpose Polyurethane Sealant to Johannesburg Factory
Short Description:
Description SV-313 is one-component, room temperature curing polyurethane sealant with good adhesive property. It has many advantages such as high strength, good elasticity, aging resistant, vibration exhaustion resistant, low temperature resistant, paintable and convenient to use, etc. Where to use Bonding and sealing for the joints in automobiles, railway trains, refrigerator cars, containers, cold storages, ships, pipelines and buildings. Characteristic a. Fast curing under r...
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Description
SV-313 is one-component, room temperature curing polyurethane sealant with good adhesive property. It has many advantages such as high strength, good elasticity, aging resistant, vibration exhaustion resistant, low temperature resistant, paintable and convenient to use, etc.
Where to use
Bonding and sealing for the joints in automobiles, railway trains, refrigerator cars, containers, cold storages, ships, pipelines and buildings.
Characteristic
a. Fast curing under room temperature , no sagging, solvent free
b. High adhesive strength, wide application range for base materials
c. Good chemical and water resistance
d. Excellent aging resistance
e. Excellent noise, vibration and impaction resistance
f. Good damp resistance and anti mildew
g. Paintable, abrasionable
Technical Data
| Item | Index | Test method | |
| Appearance | Grey, White paste | Black past | By eyes |
| Hardness, Shore A | ≥35 | ≥45 | GB/T 531.1-2008 |
| Sagging, mm | ≤3.0 | No | GB/T 13477.6-2002 |
| Solid content, % | ≥95 | ≥96 | GB/T 2793-1995 |
| Tack free time, Min | ≤120 | ≤60 | GB/T 13477.5-2002 |
| Curing rate, mm/24h | ≥3.0 | ≥3.0 | |
| Shear strength, Mpa | ≥0.8 | ≥2.0 | GB/T 7124-2008 |
| Tensile strength, Mpa | ≥1.5 | ≥2.5 | GB/T 528-2009 |
| Elongation at break,% | ≥450 | ≥400 | GB/T 528-2009 |
| Tensile strength at 100%, Mpa | ≥1.0 | ≥2.0 | GB/T 528-2009 |
| Tear strength, N/mm | ≥5.0 | ≥5.0 | GB/T 529-2009 |
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.
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After our extended snowbird trip down south I like to go over our Cougar fifth wheel trailer with a fine tooth comb looking for defects. This spring I discovered a small leaky seal in one corner of the slide out room. Luckily it hadn’t had a chance to progress too far. Still, though, it had weakened a small area of the floorboard.
I found the leak was caused by a small opening in the external silicone sealant. Silicone caulking will dry out over time leaving openings for water to penetrate. Water had seeped in over time and wetted the floor board making it a bit spongy. Given enough time I’m sure it would have rotted away completely and led to a structural failure of the slide room. Glad I caught it early!
To repair the problem, I first removed the external flange and scraped away the old silicone caulk using a plastic chisel, scotch pad, and my thumbnail. To help loosen up the old caulking, I use a product called “Goo Gone Caulk Remover.” With around a 1/2 hour of effort, I was able to get rid of pretty well all the old silicone. Extremely important as nothing will stick to silicone.
Next, I drove several 1 1/4 inch Teks Screws through the affected board area and into an aluminum beam above it. I made sure the screw was countersunk into the wood as not to catch when the slide is drawn in.
Finally, I reattached the flange and resealed it with a product called SikaFlex 290, a high-end marine grade sealant. I smoothed out the SikaFlex and made a smooth seam using a special caulking tool. The tool comes with multi-sized flexible trowls. Then cleaned up the overflow bits and let cure.
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