The Smooth Flow Butyl Hot Melt Sealant is a specially formulated, high-performance sealing solution designed for industrial applications that demand consistent adhesive flow without interruption. Engineered with high-purity butyl rubber and precision-modified resins, this thermoplastic sealant provides superior bonding and sealing properties while ensuring smooth, clog-free extrusion—even during long production cycles.
The Smooth Flow Butyl Hot Melt Sealant is a specially formulated, high-performance sealing solution designed for industrial applications that demand consistent adhesive flow without interruption. Engineered with high-purity butyl rubber and precision-modified resins, this thermoplastic sealant provides superior bonding and sealing properties while ensuring smooth, clog-free extrusion—even during long production cycles.
This sealant exhibits excellent thermal stability and flow uniformity, allowing for continuous, uninterrupted application in both manual and automated production lines. It forms a reliable, long-lasting seal that remains tacky and flexible over time without curing, hardening, or cracking. The smooth flow characteristics not only improve application efficiency but also enhance appearance and reduce material waste.
Ideal for use in insulated glass units (IGUs), construction panels, automotive components, appliances, and electronics, the Smooth Flow Butyl Hot Melt Sealant is a preferred solution for manufacturers who require fast, clean, and precise adhesive performance.
Key Features
Smooth, Continuous Flow: Specially formulated to ensure even extrusion and uninterrupted adhesive application during production.
Stable Viscosity: Maintains uniform viscosity under high-temperature working conditions (150–190°C).
Strong Adhesion: Bonds effectively to glass, metal, plastic, aluminum, and other common substrates.
Non-Curing and Reworkable: Stays tacky and flexible over time; no chemical curing required.
Excellent Weather Resistance: Withstands UV rays, moisture, heat, and oxidation for both indoor and outdoor applications.
Thermoplastic Elasticity: Retains flexibility across a wide temperature range; resists cracking under thermal stress or movement.
Environmentally Friendly: Free from solvents and VOCs, safe for enclosed or sensitive environments.
Technical Specifications
Base Material: Butyl rubber
Density: 1.4 – 1.6 g/cm³
Softening Point: 100 – 120°C
Application Temperature: 150 – 190°C
Color: Black or gray (custom colors available)
Packaging Options: 5kg / 10kg / 25kg blocks, 200kg drums
Shelf Life: 12 months in sealed original packaging under proper storage
Typical Applications
Insulated Glass Units (IGUs): Ideal as a secondary sealant to prevent moisture and gas ingress while enabling consistent seal bead application.
Automotive Industry: Used in headlamp sealing, body panel joints, and acoustic insulation areas where smooth application is essential.
Construction Panels: Sealing joints in curtain walls, aluminum composite panels, and metal cladding systems.
Electronics & Appliances: Provides airtight, moisture-resistant seals for casings, connectors, and insulation components.
HVAC and Refrigeration: Sealing ducts, insulation linings, and vapor barriers to ensure system efficiency and durability.
Application Guidelines
Surface Preparation: Ensure all substrates are clean, dry, and free from oil, dust, and loose particles.
Heating: Heat the sealant using a hot melt applicator or tank system to the recommended 150–190°C.
Dispensing: Apply a continuous bead with consistent pressure. The smooth-flow formula prevents interruptions and material clogs.
Bonding: Press components together while the sealant is still warm to ensure proper adhesion.
Storage & Handling
Store in a cool, dry area (5–30°C), away from direct sunlight and high heat sources.
Use gloves and protective gear when working with hot material.
Reseal partially used packages to avoid contamination.
Dispose of unused or contaminated product according to local environmental regulations.
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.
FAQ – Frequently Asked Questions
Q1: What makes this a "smooth flow" sealant?
A: The formulation is optimized to provide steady, uniform extrusion at high temperatures, reducing clogs and ensuring seamless application, especially in automated lines.
Q2: Will smooth flow affect adhesive strength?
A: No. Despite its easy application, the sealant maintains excellent adhesion and bonding performance on a variety of materials.
Q3: Can it be reheated and reused after cooling?
A: Yes. The thermoplastic nature allows it to be reheated multiple times without losing performance, provided it is not contaminated.
Q4: Is it suitable for outdoor applications?
A: Yes. The sealant resists UV exposure, water, and temperature fluctuations, making it durable in both indoor and outdoor environments.
Q5: Does it require curing time after application?
A: No. It solidifies upon cooling and forms an immediate tacky bond—no curing time is needed.
Q6: What kind of dispensing equipment is compatible with this sealant?
A: It works well with most hot melt extrusion systems, including hand-held applicators and automated bead dispensers.
Q7: Is it safe for indoor or enclosed environments?
A: Yes. It is solvent-free, low-odor, and VOC-compliant, making it suitable for indoor use and safe for operators.
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.