Product Introduction
The 3M™ Diamond Lapping Film Sheet 669X is designed for polishing hard materials with precision. Coated with diamond abrasive on a 3 mil polyester backing, it provides uniform surface finishes and long-lasting performance in wet polishing processes.
3M™ Diamond Lapping Film Sheet 669X Features:
- Diamond abrasive grain for high-precision finishing
- 3 mil polyester backing ensures stability and control
- Resin-bonded slurry for long-lasting durability
- Consistent and reproducible surface quality
- Designed for wet polishing processes
3M™ Diamond Lapping Film Sheet 669X Applications:
- Polishing and lapping hard metals and coatings
- Finishing ceramics and glass
- Optical and precision component finishing
- Tool and die polishing operations
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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Typical Properties
| Property | Value |
|---|---|
| Abrasive Material | Diamond |
| Application | Metalworking, Polishing, Superfinishing, Surface Finishing, AOEM Finish Prep/Repair, Aerospace, Automotive, Electronics, Fiber Optic Connector Polishing, Flat Lapping, Hand Sanding |
| Backing Material | Polyester Film |
| Backing Thickness (Imperial) | 3 mil |
| Bond Type | Resin |
| Brands | 3M |
| Coat Type | Closed Coat |
| Equipment – Machines | Hand Sanding, Lapping Machines, Manual Backstand, Orbital Sanders, Oscillating Machines, Sanding Blocks |
| Industries | Metalworking, AOEM, Aerospace, Paint Preparation, Precision Grinding & Finishing |
| Micron Grade | 30 μm, 45 μm, 60 μm |
| Product Color | Dark Green, Gray |
| Product Form | Sheet |
| Sub Applications | AOEM Finish Prep/Repair, Coating Finish Prep/Repair, Defect Removal, Finishing, Flat Finishing, Optics, Flat Lapping, Superfinishing |
| Sub Industries | Aerospace, Automotive, Metal Fabrication, Plating & Polishing |
| Vacuum Support | No |
| Wet or Dry | Wet |
