Product Introduction
3M™ Scotch-Weld™ Epoxy Adhesive DP421LH is a high-performance, two-part structural adhesive designed to create exceptionally strong and durable bonds. This off-white, toughened epoxy delivers high peel and shear strength across a wide range of high and low temperatures, alongside superior impact and fatigue resistance. Compliant with the low halogen requirements of IEC 61249-2-21, it is ideal for sensitive electronics. With a practical 20-minute work life for part positioning and convenient room-temperature curing, it serves as an excellent replacement for mechanical fasteners. The inclusion of a UV tracer simplifies quality control, allowing for easy automated or visual inspection in production environments.
3M™ DP421LH Features
- Delivers high peel and shear strength for long-lasting bonds at high and low temperatures.
- Contains low halogen content per IEC 61249-2-21 Standard.
- Features a toughened formulation that provides superior impact and fatigue resistance.
- Has a 20-minute work life, allowing ample time for part positioning and adjustments.
- Offers room temperature curing for convenient use without the need for additional equipment.
- Contains a UV tracer for easy automated and visual inspection processes.
- Is an ideal replacement for mechanical fasteners, screws, rivets, and spot welds.
3M™ DP421LH Applications
- Used for bonding applications requiring high peel and shear strength.
- Suitable for electronics and electrical assemblies requiring low halogen adhesives.
- Applied in structural bonding where impact and fatigue resistance are critical.
- Preferred in situations where room temperature curing is required.
- Used on assembly lines that utilize UV inspection systems for quality assurance.
- Serves to replace mechanical fasteners in lightweight structural designs.
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.
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| Property | Value |
|---|---|
| Adhesive Type | Epoxy |
| Brands | Scotch-Weld™ |
| Consistency | Liquid |
| Container Size (Imperial) | 6.76 fl oz |
| Container Size (Metric) | 200 mL |
| Container Type | Cartridge |
| Cure Temperature | Room Temperature |
| Industries | Electronics |
| Physical Form | Flowable Liquid |
| Smallest Saleable Unit | Each |
| Volume (Imperial) | 200 fl oz |
| Volume (Metric) | 200 mL |



