Products Features
Two component structural silicone sealant is a two-component, neutral curing high performance silicone structural sealant for building curtain wall.
It has the following superior product features：
1、 Its structural performance has been certified by the former Leading group of Silicone structural adhesive of the State Economic and Trade Commission as the manufacturer and product;
2、A wide range of curtain wall substrates including coated ceramics, reflective glass, anodized and sprayed aluminum and stainless steel and other metal materials have excellent adhesion;
3、High standard of mechanical and physical characteristics;
4、Aeutral curing non-toxic and non-corrosive;
5、Superior high and low temperature resistance -50℃ to 150℃ excellent structural strength;
6、After curing with excellent weather resistance characteristics and excellent uv resistance to high temperature and humidity performance;
7、 No batch number matching restrictions.
For structural application, material samples and drawings shall be submitted to Shengqun company for testing and review in advance.
Applications
Two component structural silicone sealants are designed for structural applications such as factory assembled glass to metal bonding, curing to form a durable, resilient and waterproof seal.
Physical property index (for reference)
Two component structural silicone sealants provide excellent bonding properties to most building substrates without primers, and their typical physical properties are more suitable for a wide temperature range. Product performance meets GB 16776-2005, ASTM C 1184, ETAG 002.
The following data are for reference only and are not recommended for specification development
Sagging degree | vertically（mm） | ≤3 |
horizontal | No deformation | |
Tack free time（h） | ≤3 | |
Hardness (Shore A) | 30-50 | |
Air bubbles | Invisible bubble | |
Shrinkage | ≤10 | |
Thermal aging | Heat loss rate % | ≤5 |
crack | none | |
pulverization | none | |
Elastic response rate% | >95 | |
Tensile bonding | Tensile bonding strength，MPa | 0.9 |
Cohesive failure area % | ≧90 | |
The shear performance | Shear strength，MPa | 0.8 |
Cohesive failure area % | ≥90 | |
Strength retention rate | 80 ℃ tensile | ≥75 |
80 ℃ shear | ≥75 | |
-20℃tensile | ≥75 | |
-20℃shear | ≥75 | |
After cleaning agent treatment | ≥75 | |
After NaCL salt spray | ≥75 | |
After SO2 acid mist | ≥75 | |
After water - Ultraviolet light 1008h | ≥75 | |
After 100 ℃ for 7 d | ≥75 | |
The tear resistance | ≥75 | |
The fatigue cycle | ≥75 | |
Cohesive failure area % | ≥90 | |
Alkane plasticizer | Infrared spectrum | none |
Uv stretching d retention % | ≥75 | |
Two component structural silicone sealant main agent 190L, curing agent 19L barreled.
Storage and Shelf life
Store in dry, ventilated and cool place for 9 to 12 months from production date.
GB16776; ISO 11600 Class G 25HM; ASTM C 920;