anti-mildew neutral
silicone sealant
Description
HS-909 Silicone Structural Sealant anti-mildew neutral silicone sealant is a two-part, neutral curing silicone formulation specifically developed for the structural bonding of glass, metal and other
building components with good features as follows:
a. Approved by silicone SSG leading group of national committee of economic and trade
b. Meets National standards of GB-16776-2005
c. Excellent adhesion to a wide range of curtain-wall materials such as coated, enameled and reflective glass, anodized oxidation or coated aluminum and stainless steel.
d. High level of mechanical properties with joint movement capability of ±12.5%.
e. Neutral cured, no corrosion, non poisonous
F. Excellent stability in a wide range temperature at -50°C~+150°C
g. Excellent weatherproof feature and a high resistance to UV radiation, high temperature and humidity.
h. Lot matching of base and curing agent not necessary. Structural applications require prior testing and written print
review by our company.
Where to use
anti-mildew neutral silicone sealant is designed for use in structural glazing applications such as: use for structural adhesion and seal the joints of the
structural glass and metal in the factory or building site.
Curing
Neutral alkoxy curing with a little of ethanol to release
Properties
HS-909 anti-mildew neutral silicone sealant has excellent adhesion without priming to most construction substrates and its typical properties are suitable for wide
temperature range. Product could meet GB 16776-2005, ASTM C 1184, ASTM C 920 12.5 CLASS, ISO 11600 12.5E.
Typical properties (for reference)
Item | Base | Curing Agent | Mixed Base to Curing Agent by Volume | Test method | |
Colors | White | Black | Black, no flow paste |
| |
Specific gravity | 1.36 | 1.03 | 1.33 |
| |
Shelf life, month | 12 | 12 |
|
| |
Mixed at 12:1 Base to Curing Agent by weight (or 9:1 by volume) | |||||
Working Time((humidity 50±5%,temperature 23±2°C) | minutes | 20-60 |
| ||
Tack free time (humidity 50±5%,temperature 23±2°C) | minutes | 80-100 |
| ||
Corrosive |
|
| no |
| |
As Cured 7 Days at (humidity 50±5%,temperature 23±2°C) | |||||
Ultimate tensile strength | MPa | 0.95 | GB/T113477.8-2002 | ||
Ultimate elongation | % | 120-130 | GB/T113477.8-2002 | ||
Hardness (Shore A) |
| 40 | GB/T1531 | ||
Tensile modules at 12.5% elongatio | Mpa | 0.14 | GB/T113477.8-2002 | ||
Construction Project Technical Service
It's needed to take the design, choose materials, operation into consideration for the structural joint sealing. The technical
communication between suppliers and applicants are necessary for the present situation: varied sealant types, daily
changing materials and the compatibilities between surface treatment and materials. Our company gives construction
project give technical services as follows:
Adhesion Testing
Our company Silicone will evaluate tests about the adhesion of our products to job site or representative job site materials
in standard laboratory. Results of the adhesion testing, product
Recommendations and surface preparation will be forwarded in writing.
Compatibility Testing
Incompatibility of glazing materials can lead to sealant discoloration and/or loss of adhesion. To help protect against
these problems and to ensure compatibility, ZHONGTUO will also test and provide information on the compatibility
of accessory materials (gaskets, spacers, etc.) and other ZHONGTUO Silicone sealants.
Stain Testing
Because of the staining problems that may occur with porous substrates,ZHONGTUO is willing to run laboratory tests
and provide information to you on the possibility of staining occurring with the construction materials being used.
Packing
HS 909 anti-mildew neutral silicone sealant base and curing agents are available in separate packaging or match packaging (12:1 by weight). The base will be
used for purge in dispenser shutdown. So base is available in 245 Kg ferrous drum. Curing agent is available in 19 Kg
plastic pail.