Neutral Silicone Glass Glue

Neutral Silicone Glass Sealant for Structural Glazing, Windows & Industrial Glass Assembly

Liangxin formulates high-performance, neutral-cure silicone sealants specifically designed for perimeter sealing, glass-to-aluminum bonding, curtain wall joints, and MRO window fabrication. Utilizing an alcohol/oxime neutral-cure system, our silicones eliminate corrosive acetic acid by-products, ensuring 100% compatibility with coated glass, Low-E glass, anodized aluminum, and sensitive metal substrates.

Global Standard Compliance: Formulated to meet ASTM C920 (Type S, Grade NS, Class 25/50) and ISO 11600 requirements.

Certified Chemical Safety: Full GHS-compliant Safety Data Sheets (SDS), REACH, and Low-VOC documentation supplied for custom clearance and green building projects.

OEM & Bulk Supply: Custom color matching (RAL range), private brand cartridge/sausage filling, and lab adhesion testing on client substrates.

Key Structural & Material Advantages

Zero Corrosion on Metals & Coatings

Safe for direct application on Low-E soft-coat glass, PVDF coatings, anodized aluminum, galvanized steel, and mirror backings without chemical etching or disbonding.

Superior Thermal & UV Endurance

Silicon-oxygen (Si-O) chemical backbone provides exceptional resistance to UV degradation, ozone, rain, and thermal cycling (-40 C to +150 C).

Permanent Elasticity

Unlike rigid organic acrylic sealants, cured silicone remains flexible to accommodate differential thermal expansion between glass and metal frames.

Odorless & Safe Operations

Low VOC profile suitable for enclosed factory assembly lines and indoor architectural installations.

Technical Specifications

Technical Parameter	Test Standard	Typical Performance Value
Chemical Base	N/A	100% Neutral Silicone Polymer
Cure System	N/A	Moisture-Cure (Neutral / Non-Corrosive)
Sag / Slump (mm)	ISO 7390 / ASTM C639	0 mm (Non-sag on vertical joints)
Skin / Tack-Free Time	ASTM C679	10 - 25 Minutes (at 23 C, 50% RH)
Full Cure Rate	Internal Lab Standard	2.0 - 3.0 mm / 24 Hours
Hardness (Shore A)	ISO 868 / ASTM C661	25 - 35 Shore A
Tensile Strength (MPa)	ISO 8339 / ASTM C1135	0.8 - 1.4 MPa
Elongation at Break (%)	ISO 8339	>= 400%
Movement Capability	ASTM C920	±25% or ±50% (Grade dependent)
Temperature Resistance	Continuous Operating	-40 C to +150 C
Service Shelf Life	Sealed at < 27 C	12 Months from production date

Neutral Silicone Water-based Glass Adhesive

Substrate Compatibility & Surface Preparation Guide

Compatible Substrates Matrix
Architectural Glass: Clear float glass, tempered glass, laminated glass, Low-E coated glass, tinted glass.

Metal Frames: Anodized aluminum, powder-coated aluminum, PVDF-painted frames, stainless steel, galvanized sheet metal.

Plastics & Composites: Selected rigid PVC, polycarbonate (grade evaluation required), fiberglass composites.

Crucial Surface Preparation Steps
Two-Cloth Cleaning Method: Clean substrate joint faces with an oil-free solvent (e.g., Isopropanol / IPA) using a clean lint-free cloth, followed immediately by a second dry wiping cloth.

Backer Rod Installation: Install closed-cell polyethylene backer rod to control sealant depth and prevent three-sided adhesion.

Tooling Technique: Tool the sealant within the skin time using dry tooling methods to push sealant against joint sides for maximum wet-out adhesion.

Application Spectrum

01/

Commercial Window & Door Assembly
High-speed perimeter sealing and glass bedding for residential and commercial aluminum, PVC, and wood-framed window systems.

02/

Curtain Wall Weathersealing
Secondary joint sealing, perimeter expansion joints, and glass-to-aluminum weatherproofing for exterior building façades.

03/

Interior Glass Partitions & Furniture
Elastic bonding and edge sealing for glass display cabinets, office glass partitions, mirrors, and shower enclosures.

04/

Industrial MRO & HVAC Fabrication
Vibration-resistant joint sealing for air conditioning ducts, cleanroom panels, cold storage enclosures, and transport vehicle glazing.

Note: For primary structural glazing load-bearing applications (Structural Silicone Glazing - SSG), please consult our engineering department for structural-grade approval and project-specific adhesion testing.

OEM, Private Label & Custom Packaging Capabilities

Packaging Options
Standard Cartridges: 280ml, 300ml HDPE cartridges compatible with manual and pneumatic caulking guns.

Heavy-Duty Sausages: 590ml, 600ml foil sausage packs designed for high-volume commercial curtain wall application with minimal plastic waste.

Bulk Drums: 200L industrial drums for automated robotic dispensing in window factory assembly lines.

Custom Branding & Private Labeling
Direct lithographic cartridge printing or high-resolution foil sausage labeling featuring customer brand logo, localized multi-language instructions, and custom barcode layouts.

Customized color formulations: Clear/Translucent, White, Black, Bronze, Silver Grey, or custom RAL color matching.

Two-component Porcelain Sealant Tile Grout Sealer

Quality Control & Batch Verification

Raw Material Inspection

Viscosity, polymer purity, and moisture level verification prior to compounding.

In-Line Production Checks

Automated fill-weight tracking, seal integrity tests, and degassing control.

Quality Traceability

Batch number, manufacture date, and expiration date jet-printed on every cartridge/sausage container.

Ordering & Project Support Process

Step 1 -> Requirement & Drawing Submission
Provide project specifications, substrate details, packaging preferences, and volume requirements.

Step 2 -> Chemical & Technical Compatibility Review
Our laboratory verifies substrate compatibility, recommended joint dimensions, and cure requirements.

Step 3 -> Free Sample & SDS Dispatch
Receive sample cartridges/sausages along with technical data sheets (TDS) and safety data sheets (SDS) for local mock-up testing.

Step 4 -> Commercial & Artwork Finalization

Confirm unit pricing, OEM packaging artwork approval, payment terms, and delivery schedules.

Step 5 -> Batch Production & Laboratory Quality Check

Production is executed under ISO-certified quality management with lot testing for extrusion, tack-free time, and tensile strength.

Step 6 -> Export Packaging & Global Logistics

Finished goods are securely palletized, shrink-wrapped, and stuffed into containers for safe ocean/air transport.

FAQ

Q: What is the main difference between neutral silicone and acetoxy silicone?

A: Neutral silicone cures by reacting with air moisture without releasing corrosive acetic acid. It is non-corrosive, virtually odorless, and safe for sensitive metals like aluminum and coated Low-E glass, whereas acetoxy releases acid that can damage metal and mirror backings.

Q: Do you supply ASTM C920 test reports and Safety Data Sheets (SDS)?

A: Yes. Complete technical documentation including GHS-compliant Safety Data Sheets (SDS), Technical Data Sheets (TDS), and relevant test summaries are supplied with all sample shipments and bulk orders.

Q: Can your neutral glass silicone be used on polycarbonate or acrylic sheets?

A: While neutral silicones are generally safer for plastics than acetoxy types, stress cracking can occur on certain stressed polycarbonates. We recommend submitting material samples to our lab for stress compatibility testing prior to application.

Q: What is the typical shelf life and recommended storage conditions?

A: When stored in unopened original packaging at or below 27 C (80 F) in a dry area, our neutral silicone sealants maintain a shelf life of 12 months from the date of manufacture.

Q: How can distributors request custom RAL color matching?

A: Submit a physical substrate sample or specified RAL color code to our technical team. Minimum order quantities (MOQ) apply for custom color batch mixing and filling.

Request Technical Support & Commercial Quote

Partner with Liangxin for reliable neutral silicone supply, custom OEM filling, and project technical support.
Please include:

Target application & substrate materials

Preferred color & packaging format (cartridge / sausage)

Estimated project or monthly order volume

OEM or private label requirements

[ Request a Technical Quote Within 12 Hours ] | [ Request Sample Package & SDS ]

We are one of the most professional neutral silicone glass glue manufacturers in China, featured by quality products and good service. Please rest assured to wholesale high-grade neutral silicone glass glue in stock here and get pricelist from our factory. We also accept customized orders.

Neutral Silicone Weatherproof Sealant, Mold Resistant Silicone for Shower, Neutral Silicone Water based Glass Adhesive