Shower Screen Seal - 4-6mm Glass, Bulb Fin 4-9mm Gaps

What this seal is

A clear shower screen seal for 4–6mm glass, sealing gaps of 4mm to 9mm. The rigid PVC U-channel — 10mm tall, with a 4mm mouth widening to 6mm at the base and internal gripping nibs — pushes straight onto the edge of the glass and grips on its own with no adhesive, no screws and no drilling. Below it, an 8mm angled deflector fin sheds running water back into the shower while a central 9mm stem tipped with a soft 4mm bulb compresses against the tray, bath, wall or tiles.

It is most often fitted along the bottom horizontal edge of a bath screen or shower door, and works just as well vertically on the upright of the glass to seal against the wall or tiles. Suitable for straight glass only.

Specification

Why fit this seal

Stops leaks instantly. A worn, discoloured or missing seal along the bottom or upright of the glass is the most common cause of water pooling outside the shower. Replacing it takes minutes and protects flooring, skirting and plaster from water damage.

Two lines of defence. The angled fin deflects running water back into the tray, and the soft bulb beneath compresses to keep constant contact across a 4–9mm gap.

No adhesive, no mess. The channel is designed to comfortably grip 4–6mm glass on its own — it pushes straight on and can be removed or repositioned without leaving residue.

Cut to fit at home. Order the next length up and trim it down, or use our custom cutting service and it arrives ready to fit.

Fitting in three steps

1. Measure. Check your glass is 4–6mm thick, measure the edge you are sealing, and measure the gap you need to close — it should be between 4mm and 9mm.

2. Choose. Pick the nearest length at or above your measurement, or have us cut it to size for you.

3. Fit. Trim to length if needed, then push the U-channel squarely onto the edge of the glass with the fin facing into the shower. No tools, no adhesive, no drying time. Never slide the seal along the glass — this can damage it.

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 and length before you order — usually the same working day. Got curved glass? Contact us and we may be able to quote to curve this seal or a similar seal to your measurements — we'll send you our simple measuring guide.