BAI YUN SS 521 Aluminium Bonding Silicone Structural Sealant
Features &Benefits
Structural and weather seal capability
No unpleasant odor during curing
Non-corrosive curing system
Excellent weather ability and high resistance to ultraviolet radiation, heat and humidity, ozone and temperature extremes
12-month shelf life, no lot matching of components
Easy tooling, low VOC formula
Excellent stability through wide temperature range: -58°F(-50°C) to 302°F(150°C)(fully cured)
Technical data
| Property | Result | Test method |
| As Supplied | ||
| Working Time | 10-20 minutes | |
| Tack free time(23°C/73°F, 50% RH) | 30-60minutes | ASTM C679 |
| Curing Time | 7-14 days | |
| Full Adhesion | 14-21days | |
| Flow, Sag or Slump | ＜0.1mm | ASTM C639 |
| VOC Content | ＜30g/L | |
| As Cured-After 21days at 23°C/(73°F), and 50% RH | ||
| Durometer Hardness, Shore A | 45 | ASTM C661 |
| Ultimate Tensile Strength | 1.10 MPa | ASTM C1135 |
| Ultimate Elongation | 260% | ASTM C 1135 |
| Tear Strength ,Die B | 10kN | ASTM D624 |
| Peel Strength | 41ppi | ASTM C794 |
| As Cured-After 21days at 23°C/(73°F), and 50% RH followed by 5,000 hours in a QUV weatherometer,ASTM G53 | ||
| Tensile Strength,at 100% elogation | 0.60 MPa | ASTM C1135 |
| Ultimate Tensile strength,at break | 1.10 MPa | ASTM C1135 |
| Specifications: Typical property data values should not be used as specifications. Assistance with specifications are available by contacting Guangzhou Baiyun Chemical Industry CO., LTD. | ||
Applications
Silicone structural glazing in curtain wall
Structural attachment of many panel systems
Protective glazing applications
Panel stiffener applications
Instructions
- Product safety information required for safe use is not included in this document. Before handling, read product and material safety data sheets and container labels for safe use, physical and health hazard information. The material safety data sheet is available from baiyun sales application engineer, or distributor, or by calling baiyun customer service.
Usable Life and Storage
12 months from the date of manufacture when stored at or below 27ºC (80ºF) in the original unopened containe
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