Product Introduction
3M™ Scotch-Weld™ Urethane Adhesive 3549 is a brown, non-sag, two-component polyurethane adhesive. This urethane adhesive has a 60 minute work life for panel bonding or repositioning. Ideal for bonding dissimilar substrates, such as composites, SMC, FRP, many plastics, ceramic, wood, rubber and metal.
As compared to one part sealants, this non-sag, two-component polyurethane adhesive, 3M™ Scotch-Weld™ Urethane Adhesive 3549 is fast-curing. This adhesive establishes tough bonds and offers low-temperature flexibility. 3M™ Scotch-Weld™ Urethane Adhesives 3549 becomes a non-sag paste upon mixing for accurate and precise handling during application. This adhesive can be used for bonding dissimilar substrates, such as concrete, ceramic, wood, plastic, rubber and metal. With a 1:1 mix ratio, this urethane adhesive has a 60 minute work life, reaches handling strength in 8 hours and full cure in 7 days.
3M™ Scotch-Weld™ Urethane Adhesives 3549 cures at room temperature or with heat. This option gives you control over how quickly a bond establishes a certain level of shear strength. At room temperature, 3M™ Scotch-Weld™ Urethane Adhesives 3549 reaches handling strength in 7 days. Upon application, its 60-minute work-life presents flexibility and provides ample time for adjustment and positioning to achieve optimum results.
Two part urethane adhesives cure chemically, rather than relying on moisture from the air. Because of this, they can cure quickly with no depth of cure issues in contrast to one-part urethane adhesive sealants. Urethane adhesives will bond most common materials such as wood, metals, rubbers, leather, tile and glass, many plastics, concrete and more.
The versatility of urethane adhesives is exhibited in the different formulations that have varying cured properties such as different levels of stiffness or flexibility, open time and cure speed, and hardness. They can cure to a relatively rigid or highly flexible state to meet a wide range of requirements. In either finished state, urethane adhesives will maintain bond strength integrity through variable environmental factors such as temperature, moisture and chemical exposure.
3M™ Scotch-Weld™ Urethane Adhesive 3549 Features
- Two part urethane delivers extremely tough, flexible bonds
- Designed for vertical and other applications that require no slumping or sagging of the adhesive bead
- Low-temperature flexibility
- Flexible adhesive that is capable of bonding dissimilar substrates
- Brown color
3M™ Scotch-Weld™ Urethane Adhesive 3549 Applications
- Flexible plastic or composite bonding
- Bonding composite panels to frames for transportation applications
- Bonding wood, metal or composite door frames to wood or other surfaces
- Bonding wood paneling to wood or plaster
- General industrial applications requiring strong, flexible, non-sag adhesives
About Prostech
Prostech offers specialty materials (adhesives, tapes, thermal interface materials, insulating materials, sealants, PCB protection materials, …) along with manufacturing solutions. We proudly serve a wide range of industries and are an authorized distributor for leading global manufacturers of industrial materials and equipment. Our product range is designed to deliver customized solutions that address each customer’s unique needs.
With years of experience and a successful project history, we are confident in our ability to provide comprehensive material solutions. These solutions effectively tackle the challenges manufacturers face. To explore our full product catalog, simply click here. Our dedicated team is ready to assist with:
- Provide quotation, sample, TDS/MSDS, and technical consultation
- Testing sample quality and verifying product compatibility in our laboratory
- Customizing material formulas for special applications
- Adapting product sizes, quantities, and packaging to meet specific needs
- Offering expert advice on suitable equipment and automation processes
- Delivering technical training and on-site support for optimal product use
Moreover, Prostech ensures the safe and accurate global delivery of all materials, including “dangerous goods”, in compliance with legal regulations. For personalized technical support or to receive a quotation, please contact us today.
| Property | Value |
|---|---|
| Adhesive Type | Urethane |
| Application | Impact Resistance, Encapsulating, Sealing, Potting |
| Brands | Scotch-Weld™ |
| Container Size (Imperial) | 1 qt |
| Container Size (Metric) | 0.95 L |
| Design Challenges | Noise Vibration & Harshness Control NVH, Impact & Shock Absorption |
| Industries | Signage, Specialty Vehicle, Woodworking, Metalworking, Construction, General Industrial, Military & Government, MRO |
| Open Time | 60 min @ 72 °F (22 °C) |
| Performance Level | Better |
| Physical Form | Paste |
| Product Form | Kit |
| Set Time | 8 hr |
| Shear Strength | 2000 psi |
| Smallest Saleable Unit | Kit |
| Specific Gravity | 1.31 |
| Storage Temperature (Celsius) | 22℃ |
| Storage Temperature (Fahrenheit) | 72 Degree Fahrenheit |
| Surface Type | Rough |
| Units per Case | 6.0 |
| Volume (Imperial) | 1 qt |
| Volume (Metric) | 950 mL |
| Work Life | 40 min |
