Product Introduction
3M™ Scotch-Weld™ Epoxy Adhesive 7240FR is a high-performance, non-sag, two-part toughened formula designed for reliable adhesion. Delivering both high shear and peel strength and outstanding levels of durability, this product excels in a wide range of industries, including general industrial, metalworking, transportation, and aerospace. In addition to these performance features, 3M™ Scotch-Weld™ Epoxy Adhesive 7240FR contains glass beads for accurate glue line control, making it an ideal choice for elevating your adhesion processes.
Formulated to Create Rigid Bonds for Reliable Adhesion
3M™ Scotch-Weld™ Epoxy Adhesive 7240 is a high-performance, two-part toughened adhesive that offers high shear and peel adhesion and outstanding levels of durability. This 2:1 mix ratio epoxy has a 45 minute work life, allowing time for adjustments and positioning of substrates and parts. It reaches handling strength in approximately 6 hours. Once cured, this adhesive provides a durable bond with high shear strength to deliver better dead load holding. This product can be used in a wide range of industries including general industrial, metalworking, transportation, and aerospace. 3M™ Scotch-Weld™ Epoxy Adhesive 7240 contains glass beads to aid in accurate glue line control.
Recommended Applications:
Rail bonding for stainless steel, aluminum, and fiberglass.
Understanding Epoxy Adhesives
Epoxy adhesives are part of the class of adhesives called “structural adhesives,” which also includes polyurethane, acrylic, cyanoacrylate and others. Epoxies are formulated as liquid reactive polymers that undergo a chemical reaction when mixed and then cure to form a solid plastic material. Once the two parts are mixed in their specified ratio, they begin the curing process and offer a limited working time where the adhesive can be applied and the two surfaces positioned as needed. This work life lasts anywhere from a few minutes to several hours.
These structural adhesives provide high shear and peel strengths, depending on the formula, and better heat and chemical resistance than other common adhesives. In general, epoxy adhesives have the highest overall strength and offer the best performance and most resistance to high temperatures, solvents, and outdoor weathering.
Epoxy adhesives are widely used in building and home construction; aircraft and automobile manufacturing; bicycle, boat, golf clubs, ski and snowboard assembly as well as a host of home use and other applications. They are used virtually anywhere high-strength bonds are needed along with resistance to environmental conditions. These adhesives are popular for their ease of use, mechanical strength, and chemical resistance. Formulations can be created to make epoxies flexible or rigid, transparent or opaque, quick setting or slow setting. The versatility with which epoxy adhesives can be formulated helps meet almost any requirement for bonding wood, metal, glass, stone, and various plastics.
3M™ Scotch-Weld™ Epoxy Adhesive 7240FR Features
- Utilizes a high-performance, two-part toughened epoxy
- Delivers both high shear and peel strength and outstanding levels of durability
- Non-sag formula helps ensure easy application to vertical surfaces
- Long open time for large area applications
- Flame retardant formulation
- Ideal for a variety of industries, including general industrial, metalworking, transportation, and aerospace
3M™ Scotch-Weld™ Epoxy Adhesive 7240FR Applications
- Rail bonding for stainless steel, aluminum, and fiberglass
- General industrial bonding tasks requiring high durability and flame resistance
- Metalworking applications requiring strong, rigid bonds
- Transportation industry bonding for high-strength assembly tasks
- Aerospace manufacturing applications requiring reliable, high-strength adhesion
- Large area bonding projects needing extended open time and sag resistance
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 |
|---|---|
| Accelerator Color | Off-white |
| Adhesive Type | Epoxy |
| Application | Impact Resistance, Encapsulating, Potting, Bonding, Sealing, Flame Retardant |
| Base Color | Black |
| Brands | Scotch-Weld™ |
| Container Size (Imperial) | 13.52 fl oz, 57.06 qt |
| Container Size (Metric) | 54 mL, 400 L |
| Cure Rate | 48 hr |
| Design Challenges | Impact & Shock Absorption, Noise Vibration & Harshness Control NVH |
| Full Cure Time | 48 hr |
| Indoor/Outdoor | Indoor/Outdoor |
| Mix Ratio Volume Base:Accelerator | 2:1 |
| Mixed Color | Black |
| Open Time | 45 min |
| Performance Level | Best |
| Physical Form | Liquid |
| Set Time | 45 min |
| Shelf Life | 36 Month |
| Smallest Saleable Unit | Each, Kit |
| Time to Handling Strength | 6 hr |
| Work Life | 45 min |
