Good Adhesion Butyl Hot Melt Sealant For Glass

Product Description

The Good Adhesion Butyl Hot Melt Sealant for Glass is a high-performance, non-curing sealant formulated for excellent adhesion to glass surfaces, making it the ideal choice for applications requiring reliable, long-lasting bonding and sealing. Designed using refined butyl rubber and premium-grade resins, this hot melt sealant offers strong tack, low permeability, and excellent flexibility—all while maintaining a smooth, uniform flow during application.

Whether used in insulated glass units (IGUs), architectural glazing, or glass-based structures, this sealant delivers superior adhesion and creates a highly durable moisture and gas barrier. Its ability to form a consistent, airtight, and watertight bond on glass makes it indispensable in both residential and commercial glass fabrication.

Thanks to its thermoplastic nature, the sealant remains pliable and non-brittle over time, accommodating temperature fluctuations and structural movement. It is compatible with both manual and automated hot melt extrusion systems, supporting high-speed production environments with reduced downtime.

Key Features

Superior Adhesion to Glass: Specially developed to ensure maximum bonding strength on clear, coated, or low-E glass.

Non-Curing Formula: Stays permanently flexible and tacky without undergoing chemical curing.

Moisture & Gas Barrier: Excellent resistance to moisture vapor and air infiltration for long-term protection.

Thermal Stability: Withstands high and low temperatures without cracking, shrinking, or hardening.

Clean Application: Smooth extrusion with minimal stringing or residue, ideal for precision sealing.

UV & Weather Resistant: Suitable for exterior glass applications exposed to sunlight and environmental changes.

Environmentally Friendly: Low-VOC, solvent-free, and safe for enclosed production facilities.

Technical Specifications

Base Material: Synthetic butyl rubber

Density: 1.4 – 1.6 g/cm³

Softening Point: 100 – 120°C

Application Temperature: 150 – 190°C

Adhesion to Glass: ≥ 1.5 MPa

MVTR (Moisture Vapor Transmission Rate): ≤ 0.02 g/m²·24h

Color: Black, gray, or custom upon request

Packaging: 5kg / 10kg / 25kg blocks or 200kg drums

Shelf Life: 12 months in original, sealed packaging

Applications

Insulated Glass Units (IGUs): Used as a secondary sealant to prevent gas leakage and moisture intrusion in double- or triple-glazed windows.

Architectural Glass Panels: Ensures airtight and watertight sealing in curtain walls and glass facades.

Solar Panels and Skylights: Protects internal glass surfaces and laminates from moisture and mechanical stress.

Glass Doors and Enclosures: Applied in structural bonding and edge sealing to maintain clarity and insulation.

Display and Electronic Panels: Prevents fogging and moisture ingress in glass-covered devices and screens.

Application Instructions

Surface Preparation: Clean glass surfaces to remove dust, grease, or coatings that may hinder adhesion. Use compatible cleaning agents.

Heating: Preheat the sealant in a hot melt applicator or tank system to the recommended 150–190°C.

Dispensing: Apply a consistent bead using manual or automatic dispensing equipment.

Assembly: Bond glass and adjoining components promptly while the sealant is warm for best adhesion.

Storage & Handling

Store in a dry, cool environment (5–30°C) away from direct sunlight.

Avoid exposure to moisture or extreme temperatures during storage.

Use heat-resistant gloves and safety gear when handling molten sealant.

Close packaging tightly after use to prevent contamination.

Deliver,Shipping And Serving

1. Online testing

Online testing will be carried out before the finished product is packaged, and the finished product will be packaged only after it meets the relevant requirements.

2. Quality control supervision.

Quality control will be carried out again before the finished product packaging is put into storage and enters the market.

3. Application testing

Carry out full product testing, from the user's perspective, restore the product application scenario, and test its application.

4. Technical service

Application technical service provides high-quality technical services. After the product enters the market, after-sales technical service will continue to track the product usage and provide high-quality after-sales service.

Good Adhesion Butyl Hot Melt Sealant For Glass

FAQ – Frequently Asked Questions

Q1: What makes this sealant suitable for glass?

A: It is formulated with adhesion boosters and stabilizers that ensure strong bonding to glass, including low-E and coated types, without damaging the surface.

Q2: Does this sealant require curing time?

A: No. It is a non-curing product that cools and solidifies after application but remains tacky and flexible permanently.

Q3: Is it compatible with insulated glass production?

A: Yes. It is widely used as a secondary sealant in IGU production to enhance gas retention and moisture protection.

Q4: Will it cause discoloration or residue on the glass?

A: No. The sealant applies cleanly and does not stain or leave residue on glass when properly applied.

Q5: Can it be used outdoors?

A: Yes. It is resistant to UV rays, weathering, and temperature changes, making it suitable for external glazing applications.

Q6: Can I reuse it after melting?

A: Yes. As long as it remains uncontaminated, the sealant can be reheated and reused multiple times.

Q7: Does it work with automatic sealing machines?

A: Absolutely. It flows smoothly under standard hot melt extrusion systems and supports continuous, high-speed application.

Company Profile

Chengxin (Henan) Sealing New Material Tech Co., Ltd. is a Chinese manufacturer and supplier of insulating glass sealing materials. We have been professionally focusing on the sealing material industry for many years. With excellent product quality and a complete market service guarantee system, the company has formed a wide sales network in China. In the international market, "Chengxin" brand series products have been exported to Western Europe, America, the Middle East, Africa, Southeast Asia and other countries and regions. We look forward to becoming your long-term partner.