Printable roll media · Cover-up advertising
Black Glue Self Adhesive Vinyl for Cover-Up Ads
Black glue self adhesive vinyl is a white printable film with a black adhesive layer. The dark backing helps hide old graphics and dark sign panels, so your new print stays clear.
Also called black adhesive vinyl or black-backed printable vinyl. UNISIGN supplies unprinted rolls for sign makers, print shops and media distributors. Start with SAV12B/140 for your next cover-up job.
Choose a Roll for Your Cover-Up Job
Start with black glue when you need a dark backing. Compare it with grey glue or opaque film to match your sign, printer and budget.
SAV12B/140
- Film: 100 μm PVC
- Liner: 140 gsm
- Widths: 0.914–2.02 m
- Standard roll: 50 m
For cover-up signs and printed advertising on suitable flat surfaces.
View black glue specifications →
SAV12G/140
- Film: 100 μm PVC
- Liner: 140 gsm
- Widths: 0.914–2.02 m
- Standard roll: 50 m
Compare hiding power on coloured panels and existing graphics.
View grey glue specifications →
SAV12OP/140
- Film: 100 μm opaque PVC
- Liner: 140 gsm
- Widths: 0.914–1.52 m
- Standard roll: 50 m
An opaque-film option for jobs where background hiding is a key need.
View opaque film specifications →Photos and listed sizes are from the linked UNISIGN product pages. SAV12OP/140 uses the range photo shown on its product page.
Where Black Glue Vinyl Helps
| Your job | What the material needs to do | What to check first |
|---|---|---|
| Cover an old ad | Hide old text, logos and strong colours | View a printed sample over the darkest part of the old graphic |
| Print on a dark sign panel | Keep light print areas clear | Compare the same print on dark and white panels |
| Refresh a shop display | Give the new design a clean background | Surface finish, edges and planned change date |
| Update a flat vehicle panel | Support bold printed advertising | Panel shape, adhesion, laminate and removal needs |
Shopfront Campaigns
Flat Panel Advertising
Fleet Graphics
Application examples from UNISIGN’s vinyl range. Share your surface and design for a suitable roll recommendation.
SAV12B/140 Black Glue Vinyl Specifications
| Item | Published product data |
|---|---|
| Model | SAV12B/140 |
| Film | PVC · 0.10 mm = 100 μm ≈ 3.94 mil |
| Adhesive | Black glue |
| Release paper | 140 gsm |
| Roll widths | 0.914 / 1.07 / 1.27 / 1.37 / 1.52 / 1.60 / 1.82 / 2.02 m |
| Standard length | 50 m ≈ 164 ft |
| Other listed lengths | 25 / 30 / 75 / 100 m |
| Print methods | Solvent / Eco-Solvent / UV / Latex |
| Listed applications | Windows, doors, bus bodies, walls and board advertising |
Source: UNISIGN SAV12B/140 product data. Tell us your finish, width and print method to get the current technical data sheet and a matched quote.
Match Roll Width to Your Wide-Format Printer
Choose a roll that fits your printer’s loaded media limit and leaves enough space for trimming. SAV12B/140 is listed in eight widths from 0.914 m to 2.02 m. Confirm the actual media limit for your printer model before ordering.
| Common printer class | SAV12B/140 roll width | Approx. width in inches |
|---|---|---|
| 36 in | 0.914 m | 36.0 in |
| 42 in | 1.07 m | 42.1 in |
| 50 in | 1.27 m | 50.0 in |
| 54 in | 1.37 m | 53.9 in |
| 60 in | 1.52 m | 59.8 in |
| 63 in | 1.60 m | 63.0 in |
| 72 in | 1.82 m | 71.7 in |
| 80 in | 2.02 m | 79.5 in |
Black Glue, Grey Glue or Opaque Film?
For cover-up work, compare how well the whole printed film hides the surface underneath. Adhesive colour and adhesive strength are separate choices.
| Option | Main reason to compare it | Best next step |
|---|---|---|
| Black glue | A dark adhesive layer for hiding old graphics and panel colour | Start with a SAV12B/140 sample |
| Grey glue | A grey adhesive layer that helps reduce show-through | Compare SAV12G/140 on the same background |
| Opaque film | Hiding power built into the film construction | Compare SAV12OP/140 with the required light level |
For frequent changes, explore removable vinyl rolls. For a hard-to-bond surface, see high tack self adhesive vinyl.
Check Your Cover-Up Sample in 4 Steps
- Print your designInclude white space, pale colours and fine text using your normal ink settings.
- Use the real backgroundApply it over old text or your darkest panel. Start with a clean, dry, sound surface.
- Check the resultView it in the actual light. Check show-through, edge bond and the print finish.
- Approve the roll setupConfirm film, width, length, laminate and the planned removal method with your sample.
For overposting, the old graphic should be firmly bonded and smooth. Remove loose or damaged film before applying the new print. For curved vehicle panels, ask for a film designed for that shape.
Printing & Finishing Made Clear
- Match your printer: SAV12B/140 lists solvent, eco-solvent, UV and latex printing.
- Run a print check: use your normal profile, ink load and curing or drying settings.
- Choose a finish: share your gloss or matt preference with the quote request.
- Add protection where needed: match the cold lamination film to the printed vinyl and job.
- Plan the service life: provide indoor or outdoor use, climate and campaign length.
Roll Supply from UNISIGN
Shanghai Unisign Industry Material Co., Ltd. has supplied printing and advertising materials since 2007. Send your application details for roll selection, samples and pricing.
Black Glue Self Adhesive Vinyl FAQs
Is the printable face black?
No. The printable face is white. “Black glue” refers to the adhesive layer underneath the film.
Can black glue vinyl cover an old advertisement?
It is a useful option for cover-up work because the dark adhesive helps hide the old design. Test the new print over the darkest part of the existing graphic and check that the old film is firmly bonded.
Does black glue mean 100% blockout?
No. Black adhesive colour alone does not establish full light blockout. Ask for opacity data and test the exact film under the lighting used for your sign.
Is black glue stronger than grey or clear glue?
Adhesive colour does not define bond strength. Match the adhesive to the surface, service life and removal needs.
Which UNISIGN model has black glue?
SAV12B/140 is the listed black glue model. It has 100 μm PVC film and 140 gsm release paper, with a standard 50 m roll length.
Which inks can I use?
SAV12B/140 lists solvent, eco-solvent, UV and latex printing. Run a sample with your printer, inks and settings before a production order.
Which roll width fits my wide-format printer?
SAV12B/140 is listed in eight widths from 0.914 m to 2.02 m. Match the roll to your printer’s loaded media limit and allow space for trimming. Send your printer model if you want help choosing the roll.
Can I remove it after a short campaign?
Share your planned removal date and surface. Black glue describes colour, so a removable adhesive specification should be selected separately for a short campaign.
What should I send for a quote?
Send your roll width, length, quantity, destination, printer or ink, surface and use period. Add a surface photo and say whether you need to hide old graphics or block light.
Plan Your Next Cover-Up Print
Get a black glue sample, current specifications and a roll quote for your job.
- Roll size: width × length
- Order: quantity + destination
- Job: surface + printer + use period
Prefer email? info@unisignflex.com · Contact UNISIGN
Product information checked against UNISIGN’s published model pages on 5 September 2026. Ask for the current technical data sheet for your chosen roll.