Flexstone® FM-K25-FAB5
Flexstone® FM-K25-FAB5 is a 0.25 mm stone paper grade in the Flexstone Eco-Material with Wall Fabric Backing range. Flexstone FM series — density 1.2, balanced flexibility and stiffness. K coating, one side, pre-laminated with wall fabric backing. Weight 400±40 g/m².

FM-K25-FAB5 specifications
| Property | Value |
|---|---|
| Part number | FM-K25-FAB5 |
| Base material | Flexstone FM series — density 1.2, balanced flexibility and stiffness |
| Coating / construction | K coating, one side, pre-laminated with wall fabric backing |
| Density | 1.2 g/cm³ |
| Face thickness | 0.25 mm / 10 mil |
| Total thickness | 0.55 mm / 22 mil |
| Weight | 400±40 g/m² |
| Gloss | 9-12° |
| Whiteness | ≥82 (wb) |
| Opacity | ≥92% |
| Printable sides | One side |
| Standard size | 50 m × 1500 mm |
| Shelf life | 12 months |
Source: NMEQS-MACO 299. Values keep the format of the source document.
Other Flexstone® Wall Fabric part numbers
Flexstone® Wall Fabric — frequently asked questions
Q1What is Flexstone® Wall Fabric?
Flexstone® Wall Fabric is a Flexstone face layer pre-laminated at the factory with a fabric backing, identified by the FAB5 suffix. Total thickness is 0.5 mm or 0.55 mm. Wallcovering manufacturers and print providers can go straight to surface printing, embossing and finishing without laminating a backing themselves, and the laminate gains strength that makes it easier to handle during installation.
Q2Which grades and printers does Flexstone® Wall Fabric cover?
There are eight grades in 50 m × 1500 mm rolls. S-coated grades (FS-S22-FAB5, FS-S27-FAB5, FM-S22-FAB5, FM-S27-FAB5) are for (eco) solvent, latex and wide-format UV inkjet printing with a gloss of 3–8. K-coated grades (FS-K20-FAB5, FS-K25-FAB5, FM-K20-FAB5, FM-K25-FAB5) are for wide-format UV inkjet with a gloss of 9–12. Opacity is ≥95% on FS grades and ≥92% on FM grades.
Q3Can Flexstone® Wall Fabric replace PVC wallcovering in fire-rated projects?
Not at present. According to the Flexstone wallcovering brochure, Flexstone currently cannot fully replace PVC wallcovering in applications with stringent fire-safety requirements, and halogen-free, eco-friendly fire-retardant formulations are still under development. For wallcovering applications without special fire-rating requirements, it offers a chlorine-free, plasticizer-free alternative that the brochure describes as compliant with RoHS, REACH and other international standards.
Q4Is Flexstone® Wall Fabric suitable for kitchens and bathrooms?
The Flexstone wallcovering brochure describes the material as fully waterproof, dimensionally stable and tear-resistant, with no expansion or contraction as humidity changes, and names kitchens, bathrooms and other humid environments as suitable. Unlike pure paper wallcovering, it does not disintegrate when wet. Typical uses are residential wallcoverings and custom murals, hotel guest rooms, office spaces and commercial displays.
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