
Shower Seals & Spares
Black Shower Screen Seal - 4-6mm Glass, Seals 20-25mm Gaps
Price shown updates with the option you pick.
What this seal is
A black push-fit seal for bath screens and shower doors with 4–6mm glass. The rigid PVC U-section grips the edge of the glass on its own — no adhesive, no screws — and the flexible blade closes large gaps of 20mm to 25mm, stopping water escaping onto the bathroom floor while matching black-framed enclosures.
It is most commonly fitted along the bottom horizontal edge of a bath screen or shower door, and works just as well vertically on the glass upright to seal the gap between the glass and the tiles or wall.
Specification
| Fits glass thickness | 4mm, 5mm or 6mm |
| Seals gaps of | 20mm – 25mm |
| Profile | 17mm channel with gripping nibs; 13mm soft foot with a 17mm angled deflector fin; 25mm drop blade below |
| Colour | Black |
| Lengths available | 800mm, 900mm, 1400mm, 2000mm or 2500mm — custom cutting service available |
| Material | Rigid PVC U-section with flexible blade |
| Position | Bottom edge of the screen, or vertical between glass and wall |
| Fitting | Push-fit — no adhesive, screws or tools required |
| Sold as | Single length |
| Glass type | Straight glass (contact us for our curved-seal service) |
| Cutting down | Easily cut to length at home once received |
Why fit this seal
Stops leaks and protects floors. A worn, split or missing seal is the most common cause of water pooling outside the bath or shower. Replacing it takes minutes and protects flooring, skirting and plaster from water damage.
Bridges a big gap. The blade covers gaps from 20mm right up to 25mm, so even a screen sitting well clear of the bath rim seals cleanly.
Matches black enclosures. Made in black to suit black-framed and matt-black enclosures — no mismatched clear strip against a dark frame.
UK stock, fast dispatch. Held in stock in the UK and dispatched same working day when ordered before 2pm.
Fitting in three steps
1. Measure. Check your glass is 4–6mm thick, measure the edge to be sealed and the gap you need to close (20–25mm).
2. Choose. Pick the nearest length at or above your measurement — 800mm, 900mm, 1400mm, 2000mm or 2500mm.
3. Fit. Trim to length if needed, then push the seal onto the glass from one end and work your way along. Do not slide the seal along the glass, as 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 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.
Complete the job
Fitting or fixing a shower door? These usually go in the same basket:
Not sure this seal fits? Shop by your glass thickness:
Request a quote
Fast, no-obligation price from our UK team for:Black Shower Screen Seal - 4-6mm Glass, Seals 20-25mm Gaps
