Bubble-Bead Bifold Seal - Reversible 2mm/5mm Bead, Seals 13-18mm Gaps

What this seal is

A clear soft-PVC seal for bifold shower doors and folding bath screens, anchored by a round bubble bead rather than the usual T-head. The bead is reversible — 2mm on one side and 5mm on the other — so one seal fits two different groove sizes. The 18mm body hangs below and closes gaps of 13mm to 18mm between the door and the tray.

The bead simply slides along the round groove in your frame — no adhesive needed. If your gap is slightly larger, a sister profile covers 14–19mm gaps with a 19mm body.

Which bead do I need?

Look for a small round groove in your frame around 2mm or 5mm wide, with a gap of 13–18mm below it. Use whichever end of the bead matches your groove — the other side simply stays unused. Comparing the cutaway in the first photo with the end of your old seal is the quickest check.

Specification

Why fit this seal

One seal, two groove sizes. The reversible 2mm/5mm bead means you don't need to identify your groove precisely before ordering — either way, it fits.

Stops leaks and protects floors. A worn seal under a folding door lets water straight onto the bathroom floor. A fresh blade closing the 13–18mm gap protects flooring and skirting from long-term damage.

No adhesive, no mess. The bead slides along the existing groove — no glue, no residue, and easy removal when it's next due a refresh.

UK stock, fast dispatch. Held in stock in the UK and dispatched same day when you order before 2pm.

Fitting in three steps

1. Measure. Check your frame has a round groove of about 2mm or 5mm and that the gap below is between 13mm and 18mm.

2. Choose. Pick 1000mm or 2000mm — whichever is at or above your door width — or use our custom cutting service.

3. Fit. Remove the old seal and clean the groove. Cut the new seal to length with scissors, pick the bead end that matches your groove, then slide it along until the seal runs the full width.

Not sure it fits?

Email a photo of your old seal's end profile or your measurements to sales@industrial-polymers.co.uk and our UK team will confirm the right profile and size before you order — usually the same working day.