Butyl Hot-Melt Sealant With Non-Hardening Surface Manufacturers, Suppliers

Product Description

The Butyl Hot-Melt Sealant With Non-Hardening Surface is a high-quality, non-curing thermoplastic adhesive specifically designed to maintain a soft, pliable surface even after extended use and environmental exposure. Unlike conventional sealants that may cure, dry, or become rigid over time, this advanced butyl-based formula remains permanently elastic and tacky, ensuring a durable and adaptable seal for various materials and applications.

This sealant is ideal for use in insulating glass, automotive components, construction joints, HVAC systems, and more—where long-term flexibility, reusability, and sealing performance are critical. Applied in a molten state and solidified upon cooling, it offers clean application, strong adhesion, and outstanding resistance to aging, UV, and moisture without ever hardening or cracking.

Key Features

Non-Hardening Surface: Remains soft and pliable throughout its service life—ideal for long-term dynamic joints.

Permanently Elastic: Accommodates thermal expansion, vibration, and structural movement without stress cracking.

Excellent Sealing Properties: Forms an effective barrier against moisture, air, gas, and dust.

No Curing Required: Sets on cooling—ready for use immediately after application.

Clean & Smooth Application: Hot-melt formula ensures precise bead control with no stringing or surface residue.

Broad Surface Compatibility: Adheres to glass, aluminum, PVC, steel, wood, and coated materials.

Weather & UV Resistant: Designed for both indoor and outdoor use with long-term durability.

Environmentally Friendly: Free from solvents and low in VOCs—safe for enclosed spaces.

Typical Applications

Insulating Glass Units (IGUs): Maintains a flexible primary seal without shrinking or hardening over time.

Automotive Assembly: Used in non-structural body seals, lighting systems, and HVAC panels for vibration absorption.

Facade and Window Systems: Ideal for long-term perimeter sealing and movement joints.

Appliance Manufacturing: Provides long-lasting seals in refrigerators, washing machines, and electronic enclosures.

HVAC & Ductwork: Ensures airtight seams and access panels while allowing future maintenance.

Prefabricated Modular Buildings: Offers durable sealing that remains reworkable as structures expand or shift.

Technical Specifications

Property Value

Appearance Black / Gray / Custom Colors

Application Temperature 150°C – 180°C

Operating Temperature Range -40°C to +90°C

Surface Hardness (Shore A) ≤20 (very soft and flexible)

Peel Adhesion (Glass/Aluminum) ≥1.5 N/mm

VOC Content <10 g/L (Solvent-Free)

UV & Weather Resistance Excellent

Shelf Life 12 months (cool, dry storage)

Storage & Handling

Store the sealant in a shaded, cool, and dry environment. Keep it sealed in its original packaging to prevent contamination. Use a hot-melt application system set to 150–180°C for optimal extrusion and placement. Avoid overheating to maintain product integrity.

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.

Butyl Hot-Melt Sealant With Non-Hardening Surface

FAQ (Frequently Asked Questions)

Q1: What does “non-hardening” really mean?

A1: It means the surface of the sealant stays soft and flexible even after years of application. Unlike curing sealants, this product never solidifies or forms a crust, which ensures better movement accommodation and long-term sealing.

Q2: Is it suitable for outdoor applications?

A2: Yes. It has excellent weather and UV resistance, making it ideal for exterior joints and structures exposed to the elements.

Q3: Will this sealant cure or dry over time?

A3: No. It is a non-curing product that remains elastic and tacky throughout its service life, even after temperature cycling and environmental exposure.

Q4: Can I remove and reapply the sealant if needed?

A4: Yes. Its non-hardening property makes it ideal for reworkable applications where seals may need adjustment or replacement later.

Q5: Is it compatible with insulating glass production?

A5: Absolutely. It’s widely used as a primary sealant in IGUs, ensuring lasting flexibility and gas/moisture retention.

Q6: Does it require surface primers?

A6: Typically no, as it bonds well to clean, dry substrates like glass, aluminum, and coated steel. However, surface testing is recommended for unusual materials.

Q7: Is this sealant safe to use in residential or indoor environments?

A7: Yes. It is solvent-free and low in VOCs, making it safe for use in confined or occupied spaces.

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.