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Double Component Silicone Structural Sealant

FOB Price: US $1,000 - 1,500 / Barrel Get Latest Price
Min.Order Quantity: 10 Barrel/Barrels
Supply Ability: 200000 Kilogram/Kilograms per Month
Port: Shanghai / Ningbo
Payment Terms: L/C,T/T
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Quick Details

Place of Origin:
Zhejiang China (Mainland)
Double Components Adhesives
Main Raw Material:
Brand Name:
Model Number:
two part:
structural use

Packaging & Delivery

Packaging Detail: Part A: 180L/190L/260KG (NET WEIGHT) in drum Part B: 18L/19.5L/20KG (NET WEIGHT) in pail
Delivery Detail: two weeks


1. special for curtain wall
2. excellent unprimed adhesion to glass and metal substrates
3. Perfect weatherproof ability

JOINLEADER 998  Double Component Silicone Structural Sealant 



JOINLEADER 998 Two Part Structural Silicone Sealant is a two-component, high quality, neutral and room-temperature cured Silicone Structural Sealant.

JOINLEADER 998 Two Part Structural Silicone Sealant is especially for structural glass assembly with excellent unprimed adhesion to most common building materials.

High ultimate tensile strength sealant ideally suited for structural bonding and protective glazing applications



Odorless, neutral and non-corrosive cure at room temperature.

Excellent resistance to weather, over 50 years’ duration under normal climatic conditions

Excellent resistance to low and high temperature, performance changes little between -50°C~200°C

Excellent mechanical properties

Very good adhesion and compatibility, especially to metals (non-corrosive) and various paint systems.

Be compatible to most membrane-plated glass or hollow glass.

Successfully tested for use in protective glazing applications

Excellent unprimed adhesion to wide range of substrates.

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




Bases as supplied:

Aspect:                           Viscous white Paste

Gravity, g/ cm3:                        1.3~1.4

Viscosity, mPa.s                    130,000~170,000


Curing agent as supplied:

Aspect:                         Viscous black Paste

Gravity, g/ cm3:                         1.0~1.1

Viscosity, mPa.s                    12,000~17,000


As mixed:

Color and Consistency                 Black, non-slump paste

Gravity, g/ cm3                         1.3~1.4

Viscosity, mPa.s                        35,000~45,000

Working Time ,Min                     10 to 30 (23°C/75°F, 50% RH)

Tack-Free Time ,Min                   80 to 100 (23°C/75°F, 50% RH)

Corrosiveness                         Non-corrosive


AFTER CURED: 23°C±2°C, RH50%±5% 14 days

SERVICE TEMPERATURE:       -50°C to +250°C




Test method


Slump, mm


GB/T 13477.6-2002


Extrudability, s


GB/T 13477.3-2002


Tack-free time, h


GB/T 13477.5-2002


Hardness (Shore)


GB/T 531-1999


Mass loss by heat, %


GB 16776-2005




Standard, MPa


GB/T 13477.8-2002

90°C, MPa


GB/T 13477.8-2002

-30°C, MPa


GB/T 13477.8-2002

Flooded, MPa


GB/T 13477.8-2002

Flooded-UV, MPa


GB/T 13477.8-2002


Joint Movement Capability,%




Tear Strength, kN/m


ASTM D0624


Peel Strength ,ppi


ASTM C0794


Tensile at 25% Elongation,MPa



Tensile at 50% Elongation,MPa




Elongation at break,%


ISO 8339



JOINLEADER 998 2-Component Structural Silicone Sealant can be used for structural glazing and sealing for glass, stone, aluminum panel curtain wall.

For silicone structural glazing and protective glazing applications.

It can also be used for secondary seal of insulating glass, filling and sealing for complex edge.



Part A and B of JOINLEADER 868 each have a shelf life of at least 12 months. If stored in tightly closed original containers in a dry place at temperatures not exceeding 27°C, the “best used before end” date of each lot is shown on the product label. If the material is kept beyond the recommended shelf life, it is not necessarily unusable, but a quality control should be performed on the properties relevant to the application.



Maintenance is not necessary. If the seam of sealant is damaged, remove it with solvent. After removing the piled scale, JOINLEADER 998 2-Component Structural Silicone Sealant will conglutinate with solidified silicone sealant.



The complete technical data and presswork can be procured from JOINLEADER and its authorized agent. JOINLEADER provides adhesive and compatible test.



Part A (Base): White, grey

Part B (Curing Agent): Black



Machine use:

Part A: 180L/185L

Part B: 18L/18.5L


Hand use:

Part A: 18L

Part B: 300ml×6


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Join Leader Adhesive Co., Ltd., a leading professional manufacturer & marketer of quality adhesives & sealants, is always dedicated to the research and development of various functions and applications in adhesives for last 17 years. Join Leader commits itself to provide more economical, professional, convenient application products, services and solutions to meet the ever-increasing demand in Construction, Industry, Automobile, DIY and other areas. Meantime, in all our products and services, ... View detail

Basic Information Indicates information has been verified onsite by a certification specialist

Product/Service (We Sell): Silicone Sealant,Gasket Maker,Contact Adhesive,White Glue,Acrylic Sealant,Epoxy Adhesive,PU Foam,Silicone Rubber Tape  
Number of Employees: 101 - 200 People  

Trade & Market

Main Markets: Central America
Eastern Europe
North America
Southern Europe
Southeast Asia
Western Europe
Northern Europe
Domestic Market
South Asia
Mid East
South America
Total Annual Sales Volume: US$10 Million - US$50 Million  
Export Percentage: 81% - 90%  

Factory Information

Factory Size (Sq.meters): 5,000-10,000 square meters  
Factory Location: Zhabei Village, Hezhuang Street, Xiaoshan District, Hangzhou City, Zhejiang Province, China  
Number of Production Lines: Above 10  
Number of R&D Staff: 5 - 10 People  
Number of QC Staff: 5 - 10 People  
Contract Manufacturing: OEM Service Offered   Design Service Offered   Buyer Label Offered  

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Verified Supplier - Join Leader Adhesive Co., Ltd.
China (Mainland) | Manufacturer, Trading Company | Contact Details
Key Strengths: Assessment Report by Bureau Veritas
Top 3 Markets: South America 23.72%, Africa 23.07%, Mid East 12.64%
Experience: Established 2005

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