Blue Dolphin Scrim Tape 48mm x 45m
Filler on its own doesn't stop a crack coming back. The two surfaces either side are still moving, and cured filler has no tensile strength to resist that movement — so it splits again along the same line, usually within a season.
Scrim tape is what carries the load across the joint.
This is 48mm self-adhesive fibreglass mesh scrim, 45m per roll.
How it works
The open mesh sits over the joint and filler is pressed through it, so the cured filler and the mesh end up as one layer rather than two. The glass strands then span the joint and hold both sides together. When the substrate moves, the tape takes the strain instead of the filler.
Where to use it
- Plasterboard joints — the standard application, scrimmed then filled in two or three passes.
- Settlement and hairline cracks in plaster, once raked out back to sound material.
- Junctions between different materials — plasterboard to plaster, timber to board — which is exactly where differential movement concentrates.
- Making good around new sockets, patches and cut-outs.
Doing it properly
Self-adhesive scrim goes onto the bare joint before any filler. Press it flat with no bubbles or ridges — anything proud of the surface telegraphs straight through the finished decoration.
Then fill through it and feather wide, with a knife at least twice the tape's width. A 48mm tape filled with a 100mm knife leaves a visible band across the wall. Filled with a 250mm knife, it disappears.
Ireland & Northern Ireland — 1–3 working days. Charged by total order weight, VAT included:
- Up to 30 kg — €6.99, or free on orders over €85
- 30–60 kg — €13.99
- 60–100 kg — €27.99
- Over 100 kg — pallet delivery €49.99
Great Britain — 2–4 working days. €13.95 up to 30 kg, then €27.90, €55.90 and €99.90 by the same weight steps. There is no free delivery to Great Britain.
Rest of Europe — non-liquid items only, from €11.75, priced by destination and weight at checkout. Paint and other liquids ship to Ireland, Northern Ireland and Great Britain only.
Dispatch and collection — order before 12pm Monday to Friday and it ships the same day. Click & collect at Ballymount, Dublin 12 is free and often ready within the hour.
Returns — 14 days to change your mind and 14 more to send it back. Tinted paint is non-returnable once mixed.
