Product Introduction
The 3M™ Diamond Lapping Film Roll 669X is designed for high-precision polishing and lapping of hard materials. Using diamond abrasive on a durable polyester film, it delivers fine finishes with excellent consistency in wet applications.
3M™ Diamond Lapping Film Roll 669X Features:
- Diamond abrasive grains ensure precision cutting
- 3-mil polyester backing offers flexibility and stability
- Resin-bonded slurry coating provides uniform performance
- Achieves fine and reproducible surface finishes
- Engineered for wet lapping and polishing processes
3M™ Diamond Lapping Film Roll 669X Applications:
- Lapping and polishing of hard metals and alloys
- Processing ceramics, coatings, and glass
- Finishing molds and cutting tools
- Surface treatment of wear-resistant materials
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, AOEM Finish Prep/Repair, Aerospace, Automotive, Flat Lapping, Hand Sanding, Electronics, Fiber Optic Connector Polishing, Surface Finishing |
| Backing Material | Polyester Film |
| Backing Thickness (Imperial) | 3 mil |
| Bond Type | Resin |
| Brands | 3M |
| Coat Type | Closed Coat |
| Equipment – Machines | Microfinishing Machines, Superfinishing Machines, Lapping Machines, Flat Finishers |
| Industries | Precision Grinding & Finishing, AOEM, Metalworking, Aerospace, Paint Preparation |
| Micron Grade | 1 μm, 2 μm, 3 μm, 5 μm, 9 μm, 15 μm, 30 μm, 45 μm, 60 μm |
| Product Color | Light Gray, Light Green, Pink, Yellow, Light Blue, Purple, Dark Green, Gray |
| Product Form | Roll |
| Sub Applications | Superfinishing, AOEM Finish Prep/Repair, Coating Finish Prep/Repair, Defect Removal, Optics, Finishing, Flat Finishing, Flat Lapping |
| Sub Industries | Aerospace, Automotive, Metal Fabrication, Plating & Polishing |
| Vacuum Support | No |
| Wet or Dry | Wet |



