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Aluminium Bonding Silicone Structural Sealant Bai Yun SS521

Basic Information
Place of Origin: CHINA
Brand Name: BaiYun®
Certification: ASTMC1184
Model Number: SS521
Minimum Order Quantity: 1000
Packaging Details: 500ml 20pcs / box; box size: 35*21*25cm
Delivery Time: 5-8 days
Payment Terms: L/C, T/T
Supply Ability: 12000000pcs per year
Detail Information
Usage: Aluminium And Glass Bonding And Sealing Classification: Neutral Silicone Sealant
Main Raw Material: Silicone Type: Neutrual Silicone Sealant
Color: Black,white,Clear,grey Shelf Life: 12 Months
Application: Sealing Construction,aluminum Material: 100% RTV Silicone
Volume: 500ml/aluminium Sausages Keywords: Silicone Structural Selant
Quality: 100% Silicone
High Light:

Bai Yun SS521


Silicone Structural Sealant Bai Yun


silicone sealant for aluminium windows

Product Description

BaiYun® SS521 Silicone Structural Sealant 500ml black gray white for aluminium & glass bonding

BaiYun® SS521 Silicone Structural Sealant

Product Introduction:

  • 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)



  • One-part, neutral-cure

  • RTV silicone sealant


  • Silicone structural glazing in curtain wall

  • Structural attachment of many panel systems

  • Protective glazing applications

  • Panel stiffener applications


    Typical Properties

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.

Applicable Standards:

·ASTM C1184, Type S, Use G and O

·GB 16776



Black, gray and white (standard colors)

Other wide variety of colors (customized)


300 mcartridge and 590 m sausage.


Storage and shelf life:

12 months from the date of manufacture when stored at or below 27ºC (80ºF) in the original unopened containers.

Product limitation:

This product 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 10ºC (50ºF) 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.


    Handling and Safety:

    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.


    How to use:

    Complete design and installation guidelines are contained in the BAIYUN Technical Manual when using this product.


    Health and environment information:

    For information and advice regarding transportation, handling, storage and disposal of chemical products, users should refer to the actual Material Safety Data Sheets containing physical, ecological toxicological and other safety-related data.

    Ultimate Tensile Strength Structural Silicone Sealant


Contact Details
Erick Liu

Phone Number : +8613711658676

WhatsApp : +8618613030819