Product Introduction
3M™ Scotch-Weld™ Structural Adhesive EC-1838 B/A is a two-part epoxy specifically developed for bonding polyester and metal panels to themselves and each other. This adhesive cures at room temperature (75°F) to create a strong, durable bond with high shear strength and excellent environmental resistance. Its formulation starts as a high-viscosity, non-sag paste, which prevents it from dripping or migrating on vertical or overhead surfaces, ensuring a clean and controlled application. With a 60-minute work life, users have ample time to adjust and fit parts precisely. EC-1838 B/A is an ideal replacement for mechanical fasteners in applications requiring high bond strength and reliability.
3M™ EC-1838 B/A Features:
- Room Temperature Cure: Two-part formula cures at 75°F to a strong, durable bond in 24-48 hours.
- Multi-Material Bonding: Unique formula is optimized to bond composite (polyester) and metal panels.
- Non-Sag Paste: High-viscosity paste won’t run, drip, or migrate on vertical or overhead surfaces.
- High Shear Strength: Delivers a durable bond with high shear strength and excellent environmental resistance.
- 60-Minute Work Life: Provides sufficient time for precise positioning of parts.
3M™ EC-1838 B/A Applications:
- Bonding polyester panels to metal panels and other surfaces.
- Replacing mechanical fasteners like screws, rivets, and spot welds.
- High-shear strength applications that also require good peel and impact resistance.
- Bonding on vertical or overhead surfaces where sag resistance is critical.
- High-volume production processes using two-part mixing and metering equipment.
About Prostech
Prostech Philippines is a one-stop solution provider for specialty materials and equipment across electronics manufacturing, from PCBA to final assembly. Our core material and equipment solutions include:
- PCB Assembly Materials
- Cleaning & Degreaser
- Circuit Board Protection
- Thermal Management Solutions
- EMI Shielding
- General Assembly Adhesives
- Elastomeric Materials
- Process Equipment: Potting & Coating Systems, UV/ Heat Curing, Plasma Treatment, Tape placement automation, and cleaning machines
Technical Added Value to customer
Prostech offers customized material and process equipment solutions with engineering support throughout R&D, production process optimization, and performance validation. Our in-house lab located in Alabang, Muntinlupa is equipped to conduct electronics material testing, application simulation, and adhesive validation, helping customers reduce the need for onsite trials and accelerate implementation.
International Supply Chain Advantage
Regional warehouse hubs across Vietnam, Singapore, Malaysia, and the Philippines ensure cross-border reliable supply. In Philippines PEZA-bonded warehouse located at Lima Industrial Park, Batangas enables Prostech to provide responsive, demand-based delivery and significantly shortens standard lead time for Philippines customers.
Need help selecting the right product or solution?
| Property | Value |
|---|---|
| Adhesive Type | Epoxy |
| Container Size (Imperial) | 1 qt, 4 oz |
| Container Size (Metric) | 0.95 L, 118.29 mL |
| Cure Rate | 7 days |
| Cure Temperature | Room Temperature |
| Product Form | Kit, Kit(set) |



