Butyl Hot-Melt Sealant For Construction

Product Description

Product Overview

Butyl Hot-Melt Sealant for Construction is a high-performance, non-curing, pressure-sensitive sealing compound designed for long-term air and water tightness. Based on butyl rubber and thermoplastic resins, it offers exceptional adhesion to a wide range of building materials such as concrete, glass, metal, PVC, and wood. Its low-temperature flexibility, high UV resistance, and aging stability make it a preferred solution in both residential and commercial construction projects.

Applied in molten form using industrial hot-melt equipment, this sealant cools rapidly and forms a durable bond without the need for curing time, improving construction efficiency while maintaining strong performance in harsh environments.

Key Features

Excellent Adhesion: Bonds well to various substrates including aluminum, steel, concrete, glass, and plastics without requiring primers.

Weather Resistant: Maintains elasticity and sealing performance in extreme temperatures ranging from -40°C to +90°C.

Non-Curing: Remains flexible and tacky, allowing for joint movement without cracking or loss of adhesion.

Easy Application: Hot-melt formulation allows for quick installation and immediate bonding.

Eco-Friendly: Solvent-free and low VOC, making it suitable for indoor and outdoor use.

Aging & UV Resistance: Withstands prolonged exposure to sunlight and air without degradation.

Customizable: Available in various sizes, colors, and packaging formats to suit different application needs.

Applications

Window and Door Frame Sealing: Ensures airtight and watertight sealing around frames, reducing energy loss.

Curtain Wall Construction: Used between joints and panels to maintain building envelope integrity.

Metal Roof Panels and Flashings: Prevents water penetration and rust at panel overlaps and joints.

Precast Concrete Panels: Ideal for expansion joints, preventing ingress of moisture and pollutants.

Vapor Barriers and Insulation Systems: Seals overlaps in vapor membranes and insulation panels to improve thermal efficiency.

Modular and Prefabricated Housing: Suitable for sealing joints in mobile or factory-built construction units.

Technical Specifications

Property Specification

Appearance Black/Grey sticky solid

Application Temperature 150°C – 180°C

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

Density 1.3 – 1.5 g/cm³

Peel Adhesion (to steel) ≥1.2 N/mm

Elongation at Break ≥300%

UV and Aging Resistance Excellent

VOC Content ≤10 g/L (Low-VOC)

Storage & Shelf Life

Store in a cool, dry, and well-ventilated area away from direct sunlight. The shelf life of the product is 12 months from the manufacturing date when stored at temperatures below 35°C in original unopened packaging.

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 For Construction manufacturers

FAQ (Frequently Asked Questions)

Q1: What equipment is needed to apply Butyl Hot-Melt Sealant?

A1: A hot-melt applicator or glue gun designed for butyl-based sealants is recommended. Industrial units with adjustable temperature control provide optimal performance.

Q2: Is this sealant suitable for outdoor use?

A2: Yes, it is highly resistant to UV, water, and temperature fluctuations, making it ideal for outdoor construction applications.

Q3: Can it be painted over after application?

A3: Butyl sealants are non-curing and may not hold paint well. If painting is required, apply paint-compatible backer or sealant over it.

Q4: Does it contain any harmful solvents or VOCs?

A4: No. This product is solvent-free and contains very low levels of VOCs, making it safe for both indoor and outdoor use.

Q5: Can it be applied in cold weather?

A5: The sealant should be applied at hot-melt temperatures (150–180°C), but it adheres well and retains flexibility even in sub-zero conditions once applied.

Q6: How do I remove excess sealant after application?

A6: While still warm, excess sealant can be wiped away with a cloth. Once cooled, mechanical removal or mineral oil-based solvents may be required.

Q7: What packaging options are available?

A7: The product can be supplied in large foil-wrapped blocks, 20kg cartons, or in 300ml/600ml cartridges for manual or pneumatic guns.

Company Profile

Henan Chengxin Sealing New Material Technology 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.