Shower Screen Seal - 4-6mm Glass, 30mm Twin Fin

What this seal is

A clear seal for shower and bath screens with 4mm, 5mm or 6mm glass, closing large gaps of 25mm to 30mm. The rigid PVC U-section pushes onto the edge of the glass and grips comfortably with no additional adhesive, while the deep blade reaches across the gap to keep water inside the shower.

It is most often fitted horizontally along the bottom of a bath screen or shower door, and can also be used vertically on the upright edge of the glass to seal against the tiles or wall.

Choose your length

Available in 800mm, 900mm, 1400mm and 2000mm lengths. Pick the length at or above the edge you are sealing and cut it down at home, or use our custom cutting service and it arrives ready to fit.

Specification

Why fit this seal

Closes a big gap properly. A 25–30mm gap under a screen is beyond most standard seals — this profile bridges it and stops water pooling on the bathroom floor.

No adhesive, no mess. The rigid U-channel grips 4–6mm glass on its own — it slides straight on and comes off without leaving residue.

Works horizontally or vertically. The same profile seals under the bottom of the door or up the side of the glass against tiles or a wall.

Cut to fit at home. Order the next length up and trim it for an exact fit, or let us cut it for you.

Fitting in three steps

1. Measure. Check your glass is 4–6mm thick and confirm the gap you need to close is between 25mm and 30mm.

2. Choose. Pick the nearest length at or above your edge measurement — 800mm, 900mm, 1400mm or 2000mm.

3. Fit. Trim to length if needed, then push the U-channel onto the edge of the glass with the blade facing the gap. No tools, no adhesive, no drying time.

Not sure it fits?

Email a photo of your old seal or your measurements to sales@industrial-polymers.co.uk and our UK team will confirm the right profile before you order — usually the same working day. Got curved glass? Get in touch and we may be able to quote to curve this or a similar seal to your measurements — we have a simple measuring guide we can send you.