Product Introduction of 3M Scotch-Weld Epoxy Adhesive EC-3542 B/A FR
3M Scotch-Weld Epoxy Adhesive EC-3542 B/A FR is a lightweight, flame-retardant, two-component epoxy adhesive formulated for structural bonding in aerospace applications. This innovative adhesive utilizes 3M glass bubble technology to deliver a low-density solution (< 0.7 g/cc) that offers excellent strength-to-weight ratio, helping significantly reduce weight in aircraft interior structures. It cures quickly at room temperature, forming tough, impact-resistant bonds with high torque resistance.
The fast gel-time and rapid cure at room temperature allow for higher manufacturing throughput with minimal preparation time. The thixotropic, non-sagging formula enables clean vertical edge close-outs, panel forming, and vertical applications without dripping or running. The adhesive’s pumpable consistency allows precise application with pneumatic and automated dispensing systems, making it ideal for honeycomb potting, edge filling, and insert potting in aerospace components. It meets FAA 14CFR 25.853 (a) flame retardancy requirements.
Key Features
- Low density (< 0.7 g/cc) for substantial weight reduction in aerospace structures
- Fast cure and short gel-time at room temperature for high manufacturing efficiency
- High torque resistance suitable for insert potting applications
- Pumpable and compatible with automated dispensing equipment
- Non-sag (thixotropic) for vertical edge close-outs and panel forming
- Flame retardant per FAA 14CFR 25.853 (a) for aircraft interior safety compliance
- Forms tough, impact-resistant structural bonds with excellent compressive strength
Key Applications
- Honeycomb panel bonding and edge close-out
- Insert potting for high-torque applications in aerospace interiors
- Galley structures and partitions
- Luggage bins and stowage compartments
- Lavatory structures and crew rest compartments
- Seating structures and ceiling panels
- Closets, bar units, and coatrooms
- Sidewall panels, cargo bay panels, and passenger doors
Weight Saving Comparison
| Epoxy Volume per Insert | Per Aircraft | Legacy Product | 3M EC-3542 | Weight Saving* | ||
|---|---|---|---|---|---|---|
| 4.26 CC | Insert QTY: 3000 | Density (g/cc) | Weight (g) | Density (g/cc) | Weight (g) | Gram / lbs |
| 1.2 | 15,336 | 0.7 | 8,946 | 6,390 g / 14.1 lbs | ||
*This is an estimate based on 0.5″ honeycomb panel × 0.5″ insert. Actual numbers may vary.
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 |
| Container Size (Imperial) | 6.76 fl oz, 15 gal |
| Container Size (Metric) | 56.78 mL, 200 L |
| Cure Temperature | Room Temperature |
| Density | 0.7 g/cc |
| Features | Flame Retardant |
| Industries | Aerospace |
| Product Form | Cartridge, Bulk |
| Shelf Life | 6 Month |
