Black Shower Seal - 4-6mm Glass, 12mm Bulb, 7-12mm Gaps

What this seal is

A black shower screen seal for bath screens and shower doors with 4–6mm glass. The rigid PVC channel pushes straight onto the edge of the glass — no adhesive, no screws, no drilling — and the soft flexible bubble at the bottom closes gaps of 7mm to 12mm against the tray, tiles or wall.

It is most commonly fitted horizontally along the bottom of a bath screen or shower door, and works just as well vertically on the upright edge to seal between the glass and the wall. The black finish is a smart match for black-framed enclosures.

Choose your length

Five lengths are available — 800mm, 900mm, 1400mm, 2000mm and 2500mm. Pick the length at or just above your glass edge; the seal trims down easily at home, or add our custom cutting service and it arrives ready to fit.

Specification

Why fit this seal

Stops leaks and protects floors. A worn or missing bottom seal is the most common cause of water pooling outside the shower — replacing it takes minutes and protects flooring, skirting and plaster.

Made for black enclosures. The black finish matches matt-black and dark-framed screens instead of standing out the way a clear or white seal would.

Soft bubble, forgiving seal. The flexible bubble compresses against the tray or wall across the whole 7–12mm range, keeping contact even where the gap varies slightly.

No adhesive, no mess. The channel grips 4–6mm glass on its own — it slides straight on and can be removed without leaving residue.

Fitting in three steps

1. Measure. Check your glass is 4–6mm thick and measure the gap you need to close — this seal covers 7–12mm.

2. Choose. Pick the nearest length at or above your glass edge — 800mm, 900mm, 1400mm, 2000mm or 2500mm.

3. Fit. Trim to length if needed, then push the channel onto the edge of the glass so the bubble closes the gap. 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 and size before you order — usually the same working day. Got curved glass? We can curve this seal to your measurements — just get in touch and we'll send you our simple measuring guide.