Description
3M 668X is a diamond lapping film: calibrated diamond particles deposited on a polyester film. It is used for lapping and polishing the hardest materials, up to an optical-grade finish.
Specifications
- Mineral: diamond.
- Backing: polyester film.
- Grades: 6, 3, 1, 0.3 and 0.1 µm.
Why diamond
On technical ceramics, tungsten carbide, sapphire or some glasses, an aluminium oxide film wears as much as the part. Diamond, the hardest mineral, keeps cutting. It also achieves finer finishes in less time on these materials.
The available grades
6 µm and 3 µm refine a surface that has already been shaped. 1 µm prepares the finish. 0.3 µm and 0.1 µm give an optical-grade polish, with no scratch visible under a standard microscope. Progress grade by grade, completely removing the previous scratch before moving on.
Applications
Fibre optic connectors, ceramic ferrules, optical components, carbide tools, metallographic samples, high-precision seal faces.
Application
Lay the film on a flat and perfectly clean platen. Work with the lubricant recommended for the application. Clean the part and the workstation between each grade: a residue of coarser grain on a 0.1 µm film is enough to ruin the finish.
See also the lapping films 3M 265X and 3M 266X, our micro-abrasive sheets and our 3M products.
Quick order
All references for this product. Indicate your quantities and add everything to the cart at once.
| Ref. | Grain | Availability | Price | Quantity | |
|---|---|---|---|---|---|
| 0.1 µ | 3M_7000118192 | 0.1 µ | On order | €32,05 | |
| 0.30µm | 3M_7000044863 | 0.30µm | On order | €1.945,00 | |
| 1 µ | 3M_7000044836 | 1 µ | On order | €801,25 | |
| 3 µ | 3M_7000044837 | 3 µ | On order | €801,25 | |
| 6 µ | 3M_7000044838 | 6 µ | On order | €801,25 |
Taxes included. Discounts and shipping calculated at checkout.
Need some advice?
Any doubts about a part number or quantity? Our technicians are available to help at 04 50 52 70 89, and we provide quotes for bulk orders within 24 hours.
- Quote within 24 hours
- Dedicated professional rates
- Technical advice by phone
Frequently Asked Questions
Any other questions?
Call us at 04 50 52 70 89 or write to contact@dagobertindustrie.com.
What are the shipping costs and delivery times?
In-stock items are delivered in 48-72 hours. Made-to-order items are delivered within 2 to 3 weeks. DPD delivery costs €5.95 incl. VAT and is free on purchases of €49 incl. VAT or more.
How to choose the right reference?
The specifications for each reference are detailed in the data sheet and the quick order table. If in doubt, call us at +33 4 50 52 70 89: we will guide you to the reference best suited to your application.
Can I order several items at once?
Yes: the quick order pad lists all part numbers. Enter a quantity for each, then add them all to your cart in one click.
I am a professional, can I get a quote?
Yes, email us at contact@dagobertindustrie.com: we will respond within 24 hours. A business account gives you access to your net prices excluding tax.
Can I return a product?
Individuals have 14 days from receipt to withdraw. The product must be new, complete, and in its original packaging. Consult our refund policy.
Is the payment secure?
Yes. Payment is encrypted by our payment provider: we never have access to your bank details.
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