Application: | Automobile, Construction |
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Bonding Function: | Structural Adhesive |
Color: | Black |
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SPU-321 HV is a low modulus one-component moisture curable polyurethane sealant. It is non sagging, of good strength and elasticity. It is weather resistant. The product is manufactured in accordance with ISO9001 and ISO14001 systems.
SPU-321 HV is used as a general-purpose sealant for sealing joints in building construction such as movement and construction joints in concrete, such as airfield pavements, brick, wood, metal and etc.
1. One component, easy to use
2. Non sagging
3. Good adhesion to a wide range of substrates
4. Primerless for most substrates
5. Excellent elasticity
6. Good weather resistance
Items | information |
Color | black, white, grey |
Appearance | Uniform paste |
Packaging | 310ml cartridge, 20 pcs/carton 600ml sausage, 20 pcs/carton |
Non-sag properties | Good |
Density | 1.45± 0.05 g/cm3 |
Tack-free time | ~60min |
Curing rate | >3mm/24hr |
Movement capability | 25% |
Shore A hardness | 30±5 |
Tensile strength | >2Mpa |
Elongation at break | ≥700% |
Tear strength | >6Mpa |
Application temperature | >-5°C |
Service temperature (permanent) | -40°C to +90°C |
Typical properties after seven days cure at 25°C and 50% RH. |
1. Joint Design
Correct joint design can assure the lifetime of buildings and sealants. To keep the flexibility of the joints, the minimum width of the joints is 5mm. The depth is 1/2 of the width. The recommended width of the joint is 80-100% of the width if the width is less than 10mm.The shelf life of polyurethane sealant is related to the temperature and humidity of the environment. The recommended storage temperature is 5-25°C , humidity is <50% RH. It is strictly prohibited that the transportation or storage temperature is over 30°C or the humidity is over 80% RH. When stored at the recommended conditions in original, unopened containers, this product has a shelf life of 9months.
The product contains isocyanates, which may cause skin and eye irritation. Avoid eye-contacting and ingestion.
Oriental Yuhong entered the Chinese waterproofing industry in 1995 with the goal of providing high-quality waterproofing solutions for a variety of applications, including infrastructure projects and commercial and industrial buildings.The company is now the largest waterproofing system provider in Asia. Its products and services have been exported to more than 100 countries and regions such as the United States, Germany, Brazil, Australia, Canada, Russia, Japan, Singapore, South Korea, Central Africa, and South Africa.Oriental Yuhong has more than 50 subsidiaries and 27 manufacturing, research and development and logistics facilities. Yuhong's manufacturing facilities are world class, using the finest manufacturing equipment available. This allows the company to produce a full line of top-quality products, including modified bitumen waterproofing membranes, cold-applied self-adhering asphalt waterproofing membranes and thermoplastic (TPO) waterproof membranes etc.