ORACAL 651 Intermediate Cal
ORAFOL's workhorse calendered sign vinyl, specified here from the European documentation that governs UK supply: 70-micron polymeric PVC with a permanent polyacrylate adhesive and up to five years' rated vertical outdoor durability in a Central European climate — with the differing US-market figures identified separately.
What it is
A blended polymeric PVC film with a glossy or matt surface and a permanent solvent polyacrylate adhesive, cut on vinyl cutters for signage, decals and lettering. ORAFOL Europe rates it up to five years' vertical outdoor exposure in a normal Central European climate, with lower ratings for some colour groups.
Who it may be relevant for: Sign makers and decorators producing stickers, decals and general signage where a permanent-adhesive intermediate vinyl is the default choice.
UK market notes
- UK supply follows ORAFOL Europe GmbH's documentation (product page and Technical Datasheet 2020/32) — the figures on this page are the European ones. ORAFOL's official locations page lists a UK group company (Kay Premium Marking Films Ltd, Crumlin, Wales).
- The US-market ORACAL 651 differs materially: 2.5 mil (about 63.5 µm) film, a 6-year headline durability rating with different colour groupings, and inch-based roll widths — those figures do not describe the product as documented for Europe.
- The European TDS revision (2020/32) is older than the current US TDS (05/2026); ORAFOL Europe's article-information sheet is dated 21 January 2025.
Specifications
Material (European TDS)
| Specification | Value | Basis |
|---|---|---|
| Construction | Blended polymeric PVC film with glossy or matt surface | Verified[2] |
| Thickness | 70 µm, without protective paper and adhesive | Verified[2] |
| Adhesive | Solvent polyacrylate, permanent; silicone-coated paper liner 137 g/m² (light blue liner behind white film) | Verified[2] |
Durability (ORAFOL-rated, Europe)
| Specification | Value | Basis |
|---|---|---|
| Rated durability | Vertical outdoor exposure, normal Central European climate: black/white 5 years · transparent/coloured/metallic 4 years · brilliant blue 3 years | Manufacturer figure[2] |
Temperatures
| Specification | Value | Basis |
|---|---|---|
| Minimum application temperature | Above +8 °C | Verified[2] |
| Temperature resistance | −40 °C to +80 °C, adhered to aluminium, no variation — TDS label: Temperature Resistance. ORAFOL Europe's product page states +60 °C maximum — the two official figures differ; consult the current Technical Datasheet for application-critical limits | Verified[2] |
Storage
| Specification | Value | Basis |
|---|---|---|
| Shelf life | 2 years in original packaging at 20 °C and 50 % relative humidity | Verified[2] |
Mechanical (FINAT/DIN test values)
| Specification | Value | Basis |
|---|---|---|
| Adhesive power | FINAT TM 1, after 24 h on stainless steel: 18 N/25 mm | Verified[2] |
| Tensile strength | DIN EN ISO 527: min. 19 MPa along and across; elongation at break min. 130 % / min. 150 % | Verified[2] |
Compliance (Europe)
| Specification | Value | Basis |
|---|---|---|
| Fire behaviour | DIN EN 13501-1 class C-s1,d0 (flame retardant, no/low smoke, no flaming droplets); sea-water resistance DIN EN ISO 9227, 100 h at 35 °C, no variation | Verified[2] |
| EU chemical & product compliance | REACH-compliant article (no SVHC above 0.1 wt-%, candidate list of 21 Jan 2025); RoHS 3 (2011/65/EU as amended); not hazardous under CLP; no microplastics per REACH Annex XVII No. 78; packaging per 94/62/EC; German General Type Approval (ABG, D5292) | Verified[3] |
Formats (Europe)
| Specification | Value | Basis |
|---|---|---|
| Colour range | European catalogue: 115 colours in glossy and matt finishes. ORAFOL's US pages state 77, 81 and 82 across their own documents — regional catalogues and counting definitions differ. | Verified[1] |
| Roll widths | European widths: 500, 630, 1000 and 1260 mm; standard length 50 m | Verified[1] |
US-market variant
| Specification | Value | Basis |
|---|---|---|
| US-market differences | US TDS (05/2026) documents the US-market variant: 2.5 mil (about 63.5 µm) film, durability rated 6 years colours / 4 metallics / 3 brilliant blue under US climate-zone conditions, inch roll widths, and a California Prop 65 notice | Verified[5] |
Manufacturer claims
- “dimensional stability rivaling even PVC-cast plotter films”[5]
Documented compatibility
- ORATAPE HT95, LT52, LT95, MT52, MT72, MT80P and MT95 application tapes — ORAFOL Europe's stated application-tape pairings for ORACAL 651.
Limitations
- Durability ratings are ORAFOL's, for vertical exposure in its stated climate basis — horizontal use, harsh climates and application quality all reduce them.
- ORAFOL requires clean, cured surfaces and recommends pre-testing on lacquered or painted substrates.
- European and US variants differ materially (thickness, durability rating, widths, colour catalogue); this page presents the European figures that govern UK supply and identifies the US variant separately.
- The European TDS revision (2020/32) predates the US revision (05/2026); figures were re-verified against the live European documents on the date shown.
Sources & verification
- ORACAL 651 Intermediate Cal | ORAFOL Europe
- ORACAL 651 Intermediate Cal — Technical Datasheet 2020/32 (Europe)
- ORACAL 651 Intermediate Cal — Article Information, 21 January 2025 (Europe)
- ORAFOL Locations — UK group company listing
- ORACAL 651 — Technical Datasheet 05/2026 (Americas)
Equipment
Roland DG VersaSTUDIO GS2-24
Roland DG's current desktop vinyl cutter: 584 mm maximum cutting width, 30–500 gf blade force and servo drive — specified from Roland DGA's product page and the April 2026 datasheet, including the warranty's registration small print.
Material
Siser EasyWeed
Siser's flagship polyurethane heat-transfer vinyl: 90-micron PU film applied at 150 °C for 10–15 seconds with a hot-or-cold peel — application settings reproduced from Siser's own page and reference chart, as guidance, not universal fact.
Checklist
Packing & dispatch checklist
From QC-passed goods to a tracked parcel the customer can't mis-receive: pack verification, labelling, documentation, carrier handoff, and the record-keeping that settles disputes in your favour.
Run the machines; let damantra run the jobs
Quotes, orders, artwork approvals, production stages and invoicing in one calm system — built for the shops this reference is written for.