Product Introduction
Our 3M™ Scotch-Weld™ Epoxy Adhesive EC-3537-NA B/A is a two-part epoxy adhesive that cures at room temperature to form a tough, flexible bond. We formulated this off-white, highly flexible, thixotropic adhesive to meet aerospace bonding requirements on metal and plastic substrates.
3M™ Scotch-Weld™ Epoxy Adhesive EC-3537-NA B/A can cure at room temperature (75°F) in 3 to 7 days or in less than an hour at 200°F. The cure rate can be accelerated with mild heating. Its non-sagging thixotropic formula holds its shape and permits application on vertical or horizontal surfaces. The two-part formula features two contrasting colors (gray and white) to permit visual inspection of mixing effectiveness.
3M™ epoxy adhesives are part of the class of adhesives called “structural adhesives,” which also includes polyurethane and acrylic adhesives. Epoxy adhesives are typically formulated with reactive components (Base and Accelerator) that cure when mixed to form a solid plastic material. 3M provides epoxy adhesives in multiple formats to support your processing needs:
- Two Part: In this format, the Base and Accelerator are stored separately which enables the adhesive to have a long shelf life even when stored at room temperature. These materials are available in duo-pak cartridges for use with the 3M™ EPX™ Applicator System, enabling you to simultaneously meter, mix, and apply two-part adhesives. For larger scale operations, you can purchase these in bulk. Because these parts are mixed at point of use, you can reduce waste by saving non-mixed unused material for a later job.
- One Part: In this format, we do the mixing for you and ship it frozen. You store it in a freezer, then remove and thaw it when you’re ready to use it.
- Adhesive Films: In this one-part format, we not only do the mixing for you, but we also turn it into a film that can be specifically cut to size and placed into your bond line. We offer a variety of films in different weights/thicknesses and supports. These films must be stored frozen.
In a two-part epoxy adhesive, 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. Similarly, in a one-part adhesive there is a limited out time after which material is thawed during which it must be used. This work life or out time lasts anywhere from a few minutes to 48 hours or longer.
In general, epoxy adhesives provide high shear and peel strengths and have good environmental resistance. These adhesives are preferred for their ease of use, mechanical strength, and chemical resistance. Depending on the formulation, epoxy adhesives can be flexible or rigid, transparent or opaque, quick setting or slow setting, high flow or low flow, room temperature or elevated temperature cure. Epoxy adhesives are among the strongest adhesives available, making them well-suited for jobs requiring strength and durability.
3M™ Scotch-Weld™ Epoxy Adhesive EC-3537-NA B/A Features
- Two-part formula cures at room temperature (75°F) to a strong, durable bond in 3-7 days, or in less than an hour at 200°F
- Enables high performance design and provides high shear and peel strength
- Highly flexible formula helps improve service life and reduce damage
- Non-sagging thixotropic formula holds its shape for precise bond line control and less rework
- Designed for bonding metal and plastic substrates in aerospace applications
- Two contrasting colors (gray and white) for easy mixing verification
- Applies easily on both vertical and horizontal surfaces
- Compatible with Duo-Pak cartridges and 3M™ EPX™ Applicator System
3M™ Scotch-Weld™ Epoxy Adhesive EC-3537-NA B/A Applications
- Aerospace bonding applications requiring high flexibility and strength
- Metal-to-plastic bonding in industrial and commercial assemblies
- Vertical and horizontal surface bonding where sag resistance is critical
- Situations requiring a flexible, high-performance bond with extended service life
- Applications requiring visual confirmation of proper adhesive mixing
- Room temperature bonding jobs needing tough, durable epoxy performance
- Operations seeking adhesives with controlled flow and easy handling
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 | Epoxy |
| Application | Sealing |
| Brands | Scotch-Weld™ |
| Container Size (Imperial) | 1 gal |
| Container Size (Metric) | 3.79 L |
| Cure Temperature | Room Temperature |
| Density | 1.33 g/cc |
| Work Life | 2 hr |
