Origin	China
Model Number	SS921
Brand Name	Baiyun
color	black, gray, white.

DESCRIPTION

SS921 Very High Performance Silicone Structural Glazing Sealant is a one-component, high strength, high elongation neutral curing silicone sealant designed and tested for structurally glazed curtain wall applications, especially for structural glazing in high-rise curtain wall, big-size glass curtain wall, complex construction curtain wall and situations with high-security requirement. The material is supplied as a paste, which cures into an extremely tough elastomeric silicone rubber ensuring a durable, flexible, watertight bond upon exposure to atmospheric moisture.

CHARACTERISTICS

   High strength and high elongation, more suitable for structural glazing in high-rise curtain wall, big-size glass curtain wall, complex construction curtain wall and situations with high-security requirement than common silicone structural glazing sealants

   Improves safety in SSG designs

   Odorless, non-corrosive cure system

   Excellent weatherability and high resistance to ultraviolet radiation, heat and humidity, ozone and temperature extremes

   Remains flexible over a temperature range of -55°F (-48°C) to 250°F (121°C)

   Successfully tested for use in protective glazing applications

   Excellent unprimed adhesion to wide range of substrates including coated, enameled and reflective glasses, anodized and polyester coated or painted aluminum profiles including most fluoropolymerbased paints

  Good compatibility with other neutral silicone sealants

   Meets global standards for structural glazing (American, China, Europe)

APPLICATIONS

   Silicone structural glazing in high-rise curtain wall;

   Silicone structural glazing in big-size glass curtain wall;

   Silicone structural glazing in complex construction curtain wall;

   Silicone structural glazing in situations with high-security requirement;

   Other silicone structural glazing and protective glazing applications.

TYPICAL PROPERTIES

APPLICABLE STANDARDS

SS921 Very High Performance Silicone Structural Glazing Sealant meets or exceeds the requirements of the following specifications for one-part sealants.

ASTM Specifications:

�   C1184, Type S, Use G and O

�   C920; Type S, Grade NS, Class 25, Use NT, A, G, O

European Standard:

�   ETAG 002

China Standard:

GB 16776

COLORS

SS921 Very High Performance Silicone Structural Glazing Sealant is available in black, gray, white or other colors on request.

PACKAGING

SS921 Very High Performance Silicone Structural Glazing Sealant is available in 10.1 fl. oz. (300 ml) plastic caulking cartridges and 20 fl. oz. (590 ml) foil sausage packs.

LIMITATIONS

SS921 Very High Performance Silicone Structural Glazing Sealant should not be used, applied or is not recommended:

�   In structural glazing applications unless Guangzhou Baiyun Chemical Industry CO., LTD. has reviewed shop drawings for applicability and has performed adhesion and compatibility tests on project substrates, spacer materials and all accompanying accessories. Review and testing is done on a project-by-project basis. No blanket approval is given by Guangzhou Baiyun Chemical Industry CO., LTD. for structural glazing applications. Structural glazing industry guidelines (ASTM C1401) suggest that drawings and details are to be reviewed by all parties involved in the manufacture of an SSG system and for each building project.

�   To building materials that bleed oils, plasticizers or solvents – materials such as impregnated wood, oil-based caulks, green or partially vulcanized rubber gaskets or tapes

�   In totally confined spaces as the sealant requires atmospheric moisture for cure

�   When surface temperatures below 4ºC (39.2ºF) or exceed 40ºC (104ºF)

�   Where painting of the sealant is required, as the paint film may crack and peel

�   In below-grade applications

�   For use as an interior penetration fire stop sealing system

�   In horizontal floor joints where abrasion and physical abuse are likely to be encountered

�   To frost-laden or damp surfaces

�   For structural adhesion on bare metals or surfaces subject to corrosion (i.e., mill aluminum, bare steel, etc.)

�   For contact with strong acids or bases

�   To surfaces in contact with food

�   For continuous immersion in water

�   This product is neither tested nor represented as suitable for medical or pharmaceutical uses.

TECHNICAL SERVICES

Complete technical information and literature are available from Guangzhou Baiyun Chemical Industry CO., LTD.

The following materials are required to be submitted to Guangzhou Baiyun Chemical Industry CO., LTD. to receive suggestions for the use of SS921 Very High Performance Silicone Structural Glazing Sealant.

�   Architectural and shop drawings for review and comment.

�   Design wind load requirement(s) for project.

�   Glass or panel sizes.

�   Production samples of metal, glass, gaskets, spacers and setting blocks with type and manufacturer identified.

�   Specification and/or identification of paint or finish to which SS921 Very High Performance Silicone Structural Glazing Sealant is intended to adhere (i.e., 215-R1 anodized or if paint; manufacturer, finish system and ID#).

Guangzhou Baiyun Chemical Industry CO., LTD. will provide the following, after reviewing the materials above:

�   Determination as to whether the submitted joint dimensions meet the minimum design criteria necessary for the use of SS921 Very High Performance Silicone Structural Glazing Sealant.

�   Short-term adhesion data using (typically) the ASTM C794 and/or ASTM C1135 test method. Other test methods may be employed.

�   Short-term compatibility test results on gaskets, spacers and setting blocks and other accessories per ASTM C1087 or Guangzhou Baiyun Chemical Industry CO., LTD. test method for compatibility.

�   Information regarding suggested primers, when required.

Guangzhou Baiyun Chemical Industry CO., LTD. will not:

  Design sealant joints.

  Provide comments on the structural integrity of overall framing system(s). 

   Provide long-term performance data.

The design professional has final responsibility for the determination of structural sealant joint dimensions based on project conditions, design wind load(s), glass or panel sizes, anticipated thermal, seismic or other movement of the system.

The ASTM C1401 Standard Guide for Structural Sealant Glazing provides a thorough overview of design topics and information for use in SSG systems.