Description
This 38mm blue masking tape is Blue Dolphin's painter's tape on a 38 mm wide, 50 m roll. It masks the edges you keep clean on smooth surfaces, inside and outside: skirting, window and door frames, sockets, switches and narrow profiles. It can stay on for up to 30 days and still come away without adhesive, and it resists UV. It is one of the masking tapes in the Renders World tape range.
What You Get With This 38mm Blue Masking Tape
- A 38 mm strip. The roll is 38 mm wide and 50 m long.
- Clean paint lines. Paint does not creep under the edge, so the line between two colours stays sharp.
- No adhesive left behind. It sticks well to many surfaces and comes off easily, without marks of glue.
- Up to 30 days on the surface. It can stay in place for 30 days and still come off cleanly.
- Inside and outside. It is UV resistant and made for use both indoors and outdoors.
- Solvent-free adhesive of specially modified synthetic rubber, on a crepe paper backing in Blue Dolphin's Special Blue.
Specification of the 38 mm Roll
| Detail | Blue Dolphin 38mm blue masking tape |
|---|---|
| Maker and product | Blue Dolphin painter's tape for professionals |
| Roll | 38 mm wide, 50 m long |
| Maker's number | MTPGSBL49_07285 |
| Backing | Crepe paper |
| Adhesive | Solvent-free, modified synthetic rubber |
| Colour | Special Blue |
| Time on the surface | Up to 30 days, clean removal |
| Adhesion to steel at 90° | Under 7 N per 2.5 cm |
| Application temperature | +18 to +25 °C |
| Working temperature | −10 to +60 °C |
| Use | Inside and outside, on smooth surfaces |
Other Widths of the Same Tape
Renders World stocks this Blue Dolphin tape in 25, 30, 38 and 48 mm widths, all on 50 m rolls. The tape itself is the same in every width; only the strip changes.
| Width | Roll |
|---|---|
| 25 mm roll | 25 mm x 50 m |
| 30 mm roll | 30 mm x 50 m |
| 38 mm (this roll) | 38 mm x 50 m |
| 48 mm blue masking tape | 48 mm x 50 m |
Pick the width by the edge you protect: the tape should cover the strip of frame, profile or skirting next to the paint line.
How to Use It
- Make sure the surface is clean, dry and free of grease, oil and detergent. Porous walls such as plaster should be sound, with old coatings removed, and primed.
- Lay the tape within the application temperature Blue Dolphin gives: +18 to +25 °C.
- Press the edge of the 38mm blue masking tape down along its whole run before you paint.
- Take it off as soon as the paint has dried, pulling slowly back at 45°.
Blue Dolphin asks for a trial first: how cleanly the tape comes off depends on the surface, the weather (temperature, sun and humidity) and the paint used.
Where It Goes
- Painting walls — the line where one colour meets the next.
- Lacquered or varnished woodwork — doors, frames and trims.
- Skirting and floor profiles.
- Glass, plastic and metal — window panes, frames, hinges and fittings.
- Sockets, switches and narrow profiles — the small details Blue Dolphin names for this tape.
This 38mm blue masking tape is made for smooth surfaces. On rough render, brick or stone, use the orange render tape, made for rough facades. It is not for live electrical parts or for joining or stiffening damaged, moving or load-bearing elements.
Storage and Safety
- Storage — in the original pack, somewhere cool and dry (no more than 21 °C and 50 % humidity) and out of direct sun.
- Shelf life — use it within 12 months of dispatch.
- Safety — the tape is flammable and single-use, made for trained, professional use; keep it away from open flame and heat.
- Disposal — with mixed waste.
Ordering, Delivery and Returns
- Dispatch — Renders World sends orders out the same day when the stock is there, so order the tape with the paint it masks for.
- Delivery — the team quotes it after the order; parcels up to 25 kg travel next day and every delivery is kerbside.
- Collection — at the counter, Unit 9A, Central Trading Estate, Southampton SO14 5JP: Monday to Friday 7am to 5pm, Saturday 7am to 12pm.
- Returns — goods bought directly from Renders World can come back within 14 days in original condition; special orders and promotion purchases are excluded.
FAQ
What is 38mm blue masking tape used for?
It protects the edges you do not want painted — skirting, frames, sockets, switches, narrow profiles and glass — and gives a clean line between two colours, inside or outside.
Is it the same tape as the other widths?
Yes. The 25, 30, 38 and 48 mm rolls are the same Blue Dolphin painter's tape with the same backing and adhesive; only the width differs.
How long can it stay on?
Up to 30 days, inside or outside. It still comes off cleanly, without adhesive left behind, and it resists UV.
When should I take it off?
As soon as the paint has dried. Pull it slowly back at 45°, so the edge stays sharp.
Will it hold on rough render or brick?
It is made for smooth surfaces. For rough render, brick and stone, Renders World stocks the orange render tape.
What temperature does it need?
Blue Dolphin gives +18 to +25 °C for laying the tape; once on, it works from −10 to +60 °C.