
The Advantages of Our Air Conditioner PUR Adhesive
1. Strong Bonding for HVAC Assembly
Our PUR adhesive delivers high-strength and durable bonding for modern air conditioner manufacturing. It is suitable for structural assembly, sealing, and component mounting, helping improve product reliability and long-term service performance.
2. Excellent High-Temperature & Weather Resistance
Engineered for demanding HVAC conditions, the cured adhesive withstands long-term exposure to temperatures up to 100°C and resists outdoor weathering and UV radiation. It helps maintain bond strength and elasticity under harsh operating environments.
3. Outstanding Vibration & Fatigue Resistance
The adhesive provides excellent damping properties to reduce noise and vibration from compressors and fans. It maintains bond integrity even after extended dynamic fatigue conditions, making it ideal for air conditioner systems exposed to continuous vibration.
4. Broad Material Compatibility
Suitable for bonding ABS, PS, and PP plastic housings, aluminum fins, heat exchanger coils, copper tubing, EPS/XPS insulation materials, and rubber sealing gaskets. It supports multiple bonding and sealing needs in air conditioner assembly.
5. Efficient Production & Eco-Friendly Performance
This solvent-free PUR adhesive features low VOC emissions and complies with environmental requirements such as REACH and RoHS. It is ideal for automated dispensing and high-speed assembly lines, helping manufacturers improve production efficiency and workplace safety.

Key Process Description
1. Heating & Melting
The PUR adhesive is heated to the recommended operating temperature to achieve stable flowability for air conditioner bonding and sealing applications.
2. Precise Adhesive Application
It is applied evenly onto the target component by automated dispensing or coating equipment, ensuring clean and consistent adhesive distribution on housings, insulation parts, coils, tubing, and sealing areas.
3. Fast Assembly & Initial Bonding
During air conditioner assembly, the adhesive provides fast initial tack to support quick positioning and efficient handling on automated production lines.
4. Moisture-Curing Crosslinking
After application, the adhesive reacts with ambient moisture to form a durable 3D cross-linked thermoset structure. Once fully cured, the bond delivers lasting resistance to temperature fluctuation, vibration, and aging.
Benefits in Air Conditioner Assembly
Heat Exchanger Bonding
Suitable for bonding heat exchanger-related components where long-term thermal stability and reliable structural performance are required.
Housing Assembly & Decorative Panel Attachment
Ideal for plastic housing assembly and decorative panel attachment, helping improve appearance quality, bonding reliability, and assembly efficiency.
Insulation Sealing & Fan Motor Mounting
Supports insulation sealing and fan motor mounting applications by providing durable adhesion, vibration damping, and stable performance under repeated operating cycles.

Packing Details

Available Packaging
We have various packaging options for our PUR hot melt adhesive:
1) 200 Kg / drum, 56 drums / 20'GP
2) 20 Kg / pail or barrel, 448 pails / 20'GP
3) 2 Kg / can
4) 300 ml / cartridge

Company Information
Sino-Adhesive provides PUR adhesive and sealing solutions for air conditioner assembly, helping manufacturers improve structural bonding, insulation sealing, vibration resistance, and production-line efficiency.
As a professional PUR adhesive manufacturer, Sino-Adhesive supplies customized bonding solutions for electronics and appliance applications, including air conditioners, refrigerators, touch panels, and other industrial products. Welcome to contact us for product advice and technical support.

FAQ
Are you a manufacturer or a trading company?
We are a direct manufacturer. This helps us offer stable product quality, better lead-time control, and direct technical support for air conditioner assembly projects.
What materials can this air conditioner PUR adhesive bond?
It is suitable for ABS, PS, and PP plastic housings, aluminum fins, heat exchanger coils, copper tubing, EPS/XPS insulation materials, and rubber sealing gaskets.
What are the main applications of this PUR adhesive in air conditioner manufacturing?
It is widely used for heat exchanger bonding, housing assembly, insulation sealing, fan motor mounting, and decorative panel attachment.
Can this adhesive withstand temperature fluctuation and vibration?
Yes. It is designed for HVAC operating conditions and provides strong resistance to temperatures up to 100°C, vibration, fatigue, and long-term aging.
Is this adhesive suitable for automated production lines?
Yes. It is ideal for automated dispensing and high-speed assembly lines, helping improve efficiency and process consistency.
Do you provide TDS, SDS, and technical application support?
Yes. We can provide TDS, SDS, and technical support according to your material combination, machine conditions, and assembly requirements. A typical grade for this application is SINOHESIVE® EA5816-5, with viscosity of 4900–8400 mPa·s at 130°C, processing temperature of 130–150°C, and open time of 1–5 minutes at 30°C.