Description
Facade Sealants and Curtain Wall Accessories
Silicone Weatherproof Sealant & Structural Glazing Sealant
Silicone weatherproof sealant and structural glazing sealant are used for curtain walls, facade joints, glass assemblies, windows, doors, aluminum panel joints and construction sealing projects. The correct sealant type should be selected according to joint design, substrate, exposure, movement, compatibility test, adhesion test and project requirement.

Quick Specification Summary
| Product type | Silicone weatherproof sealant, structural glazing sealant, glass sealant, facade joint sealant |
|---|---|
| Cure type | Neutral cure or project-specified sealant system |
| Application | Curtain wall, window, door, glass joint, aluminum panel joint, facade joint, construction sealing |
| Color | Black, white, grey, transparent, bronze or project-based color |
| Packaging | 300ml cartridge, 590ml sausage, pail / drum or supplier packaging option |
| Substrate | Glass, aluminum, coated aluminum panel, concrete, stone or project-specified substrate |
| Selection focus | Joint design, movement, substrate, exposure, compatibility, adhesion, primer and technical data |
| Order type | Sample, trial order, project order, distributor order or OEM / private label order |
What Is Silicone Weatherproof Sealant?
Silicone weatherproof sealant is used to seal exterior and interior construction joints against water, air and weather exposure depending on product grade and project requirement.
It is commonly used for facade joints, aluminum panel joints, window and door perimeter sealing, glass joints and general construction sealing.
Weatherproof sealant is not the same as structural glazing sealant. It is mainly used for sealing joints, not for carrying structural glass loads.
What Is Structural Glazing Sealant?
Structural glazing sealant is used in selected curtain wall and glass systems where bonding performance is part of the designed system.
Safety note: Structural glazing applications must be confirmed by project drawings, sealant supplier technical datasheet, compatibility test, adhesion test, structural calculation, professional engineer review and local code requirements. This page does not imply that any sealant can be used structurally.
Weatherproof Sealant vs Structural Glazing Sealant

| Item | Weatherproof Sealant | Structural Glazing Sealant |
|---|---|---|
| Main role | Seal joints against water, air and weather exposure | Bond glass or panels in selected designed structural glazing systems |
| Typical use | Facade joints, aluminum panel joints, window perimeter, construction joints | Curtain wall glass bonding and selected structural glazing details |
| Selection focus | Joint width, movement, substrate, exposure, color, compatibility | Structural design, adhesion, compatibility, technical data, engineering review |
| Risk level | Important for weather sealing | Safety-critical and must be professionally reviewed |
| Buyer focus | Type, color, packaging, quantity, substrate, joint design | Approved sealant system, test data, project design and supplier confirmation |
Facade Joint and Aluminum Panel Sealing Detail

For facade and aluminum panel joints, buyers should confirm joint width, joint depth, backer rod, substrate surface, coating type, joint movement, cleaning method, primer requirement, weather exposure, sealant color and application temperature range if specified by supplier data.
Note: Do not assume one product gives universal waterproofing for every joint detail.
Structural Glazing Design Review Notes

For structural glazing applications, buyers should confirm glass type, frame material, joint dimension, bite size, spacer, setting block, weather seal, structural calculation, compatibility test, adhesion test, approved technical datasheet, local code and engineer review.
This product page is for sourcing discussion only. It does not replace sealant supplier approval, project engineering review or local code compliance.
Color and Packaging Options

Color and packaging should be confirmed by sample, supplier catalog, batch availability and order quantity.
Substrate Compatibility, Adhesion Test and Primer

Sealant performance depends heavily on substrate and surface preparation. Buyers should confirm glass type, aluminum profile surface, PVDF / powder coated aluminum panel surface, concrete / stone / ceramic / other substrate, cleaning method, primer requirement, adhesion test, compatibility with gasket, spacer, backer rod and coating, site condition and installation method.
Note: Do not assume one sealant works with every substrate or joint detail.
Project Applications
Silicone Sealant vs PU Sealant vs MS Sealant
| Item | Silicone Sealant | PU Sealant | MS Sealant |
|---|---|---|---|
| Common use | Glass, facade, curtain wall and weatherproof joints depending on grade | Construction joints and selected sealing applications | Hybrid sealing applications depending on product grade |
| UV / weather exposure | Often selected for exterior facade sealing depending on product grade | Product-dependent | Product-dependent |
| Paintability | Usually limited depending on product | Often better than silicone depending on product | Often better than silicone depending on product |
| Movement / elasticity | Product-grade dependent | Product-grade dependent | Product-grade dependent |
| Buyer focus | Cure type, substrate, color, compatibility, technical data | Substrate, paintability, movement, durability | Substrate, paintability, application and technical data |
What Buyers Should Confirm Before Quotation
Sample, MOQ, Shelf Life and Export Packing

- MOQ depends on sealant type, color, packaging, private label requirement, quantity and supplier policy.
- Samples may include cartridge sample, color sample, sausage sample, technical datasheet or compatibility test sample.
- Shelf life, production date, storage condition and batch number should be confirmed before shipment.
- Export packing should protect cartons from crushing, moisture, heat and leakage.
- Carton packing, pallet wrapping, label information and batch separation should be confirmed.
- Mixed colors or multiple SKUs may affect MOQ and packing method.
FAQ for Sealant Buyers
Can one silicone sealant be used for every joint?
No. Weatherproof sealing, structural glazing, glass joints, window joints and aluminum panel joints may require different sealant grades and technical confirmation.
What is the difference between weatherproof sealant and structural glazing sealant?
Weatherproof sealant is mainly used for joint sealing. Structural glazing sealant is used in selected designed systems where bonding performance is part of the structural glazing design and must be professionally reviewed.
Can structural glazing sealant be used without testing?
No. Structural glazing applications should confirm technical datasheet, compatibility test, adhesion test, project design, engineer review and local code requirements.
What colors are available?
Common colors may include black, white, grey, transparent and bronze. Project colors should be confirmed by supplier sample and quantity.
What packaging options are available?
Common packaging may include cartridge, sausage and pail / drum options depending on supplier availability and project requirement.
What information is needed for quotation?
Please send sealant type, application, substrate, joint size, color, packaging, quantity, technical requirement and destination port.
Related Exterior Facade Materials
For facade and exterior wall projects, buyers often review panels, installation accessories, sealants, fixing details and quotation documents together.
Facade hardware products often coordinated with sealant and panel installationAluminum Solid Panel
Aluminum facade panel product for joint and sealant coordinationAluminum Honeycomb Panel
Large-format lightweight facade panel productAluminum Ceiling & Soffit Panels
Ceiling and soffit panels for canopy and exterior overhead areas
Related Facade Sourcing and Installation Guides
These guides help buyers prepare drawings, quotation details, finish choices, installation coordination and export packing requirements.
Installation and site coordination points for exterior facade materials.Aluminum Panel Shop Drawing Guide
Drawing information that helps confirm size, fabrication and installation details.Aluminum Facade Panel Quotation Guide
Quotation checklist for project details, specifications, quantity and destination.Exterior Facade Materials Sourcing Guide
Hub page for product selection, drawings, accessories, samples, packing and quotation preparation.
What to Prepare Before Quotation
Before requesting quotation, please prepare product type, drawings or photos, quantity, size, thickness, finish requirement, application and destination port. For project-based facade materials, clearer details help confirm the quotation scope, sample method, packing and accessory requirements.
- Sealant type
- Application area and substrate material
- Joint width or depth if known
- Color requirement
- Packaging requirement
- Quantity
- Destination port
Structural glazing is safety-critical and should be confirmed by supplier technical documents, compatibility and adhesion test, project drawings and qualified professionals.
Request Silicone Sealant Quotation
Send sealant type, application, substrate, joint size, color, packaging, quantity and destination port. We can help check suitable sealant sourcing options, sample method, packing and factory quotation.
