• self adhesive shower door sweep for sliding glass door
  • Technical dimension diagram of the S312DTL7 strip, specifying the adhesive contact width, material thickness, and fin length intended to provide coverage while accommodating various bottom hardware positions.
  • Macro close-up of the S312DTL7 transparent body, highlighting the smooth high-gloss finish and the secure bond between the PVC layer and the adhesive substrate, suitable for wet bathroom environments.
  • High-resolution detail of the S312DTL7 crystal-clear fins, showcasing their flexibility which allows the seal to conform around bottom rollers or clips where standard U-channel seals may not fit.
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Adhesive Shower Door Bottom Side Fin Seal Up to 25mm Gap S312DTL7

£14.88
£20.88 £14.88
Sold out
-29%
Taxes included. Shipping calculated at checkout.
Total Length: 1000mm
Gap: Seal 10mm

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Description

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Product Video

The S312DTL7 is an adhesive bottom seal for shower doors where a normal clip-on or push-fit seal will not sit properly.

It is a good option when rollers, brackets, fittings or an uneven gap get in the way, helping reduce water escaping through gaps up to 25mm.

Key specifications

Catalog no.
S312DTL7
Seal type
Adhesive shower door bottom seal with flexible fin
Glass thickness
Fits most glass thicknesses — sticks to the glass surface
Maximum gap covered
Up to 25mm
Application
Shower door bottom edges with hardware or uneven gaps
Material
Clear PVC with anti-mould adhesive tape
Length
1000mm – easy to trim to size
Pack Quantity
1 piece
Installation
Self-adhesive, cut-to-size
✓ Free UK Mainland Delivery | ✓ Price Includes VAT | ✓ 10-Month Warranty

Check Before You Buy

This seal is suitable if:

  • Your shower door needs a bottom seal.
  • A normal clip-on or push-fit seal will not sit properly.
  • There are rollers, brackets, fittings or uneven clearance at the bottom.
  • You need to cover an uneven bottom gap up to 25mm.
  • You want a seal that sticks directly to the glass.
  • Your required length is 1000mm or less.

Choose another seal if:

  • You need a side, vertical or magnetic closing seal.
  • Your glass bottom edge is clear and suitable for a standard push-fit seal.
  • Your gap is larger than 25mm.
  • You need a seal for a framed metal edge, guide rail or shower track.
  • The surface is textured, wet, dirty or not suitable for adhesive fitting.

Browse our full shower door bottom seals range to compare all sizes.

Product Description & Suitable Applications

The S312DTL7 is mainly for awkward bottom-edge sealing jobs where a standard seal will not sit properly.

It works well for doors with bottom rollers, brackets, fittings or uneven clearance, helping reduce water escaping through gaps up to 25mm.

Because it sticks directly to the glass surface, it suits most glass thicknesses and is not limited by a fixed U-channel size.

For sliding doors with two overlapping glass panels, fit the S312DTL7 to the innermost panel, closest to the shower spray. On overlapping sliding doors, the D510 can be used alongside the S312DTL7 to help reduce water passing between the two glass panels.

This seal is not suitable for vertical side edges, magnetic closing edges, framed metal edges, guide rails, shower tracks or surfaces unsuitable for adhesive fitting.

Installation Notes

  1. Clean the glass with alcohol and let it dry fully.
  2. Test the position before removing the backing tape.
  3. Measure the required length and trim the seal if needed.
  4. Peel off the backing tape, then press the seal firmly onto the glass.
  5. Allow 7–10 hours for the adhesive to cure before using the shower.

FAQ

1. Will this work where a normal bottom seal will not fit?

Yes. This is the kind of job the S312DTL7 is made for.

If a clip-on or push-fit seal will not sit properly because of rollers, brackets, fittings or an awkward gap, this adhesive seal gives you another way to seal the bottom edge.

2. Does this seal fit different glass thicknesses?

Yes. The S312DTL7 sticks to the glass surface rather than clipping over the glass edge, so it is not limited to one glass thickness.

It can be used on most shower door glass thicknesses, as long as the glass surface is clean, flat and suitable for adhesive fitting.

3. What size gap can this seal cover?

The S312DTL7 can help reduce water escaping through uneven bottom gaps up to 25mm.

The flexible fin hangs down towards the shower tray or bath edge to help block water beneath the door.

4. Is this seal suitable for side use?

No. The S312DTL7 is not suitable for side use.

The flexible fin is designed to hang down from the bottom edge. It is not a vertical side seal, magnetic seal or magnetic closing seal.

5. How do I install this adhesive shower door seal?

Clean the glass with alcohol and let it dry fully.

Test the position before removing the backing tape.

Peel off the backing tape, then press the seal firmly onto the glass.

Allow 7–10 hours for the adhesive to cure before using the shower.

Delivery & Shipping Information

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We aim to dispatch all orders placed before 2 PM on the same day. Orders placed after 2 PM usually ship the next working day.

Important: Our automated system selects the best courier based on your address, order size, and quantity.

Delivery Summary

  • UK Mainland Standard: 2–3 working days (FREE).
  • Highlands, Islands & NI: 3–7 working days (Calculated at checkout).

A small surcharge applies to remote areas (Highlands/Islands/NI). This is clearly calculated when you enter your postcode.

If your order hasn't arrived within 5 working days (any service), please email us immediately at info@showerdoorseal.uk.

Compliance Information

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Product Safety

Manufacturer Name: SIMBA International Limited

Address:No.25-2, Fuke North Road,

Luosong Village, Fusha Town,

Zhongshan, Guang Dong, China

Contact: support@glassseals.com

View full details
self adhesive shower door sweep for sliding glass door
Adhesive Shower Door Bottom Side Fin..
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Care & Installation Tips

Ensure a better fit and longer-lasting clarity.

Adhesive Shower Door Bottom Side Fin Seal Up to 25mm Gap S312DTL7 Installation Guide - Simba Anti-Mould Shower Seal

✓ DO’S

  • Direct Press: Fit by pressing directly onto the glass edge to protect the surface.
  • Deep Clean: Remove all UK hard-water limescale before installation.
  • Sharp Tools: Use garden pruners for a clean, professional finish.
  • Daily Rinse: Simply wash away soap suds after your shower.

✕ DON’TS

  • No Sliding: Never slide the seal along the glass; this risks scratching.
  • No Extreme Heat: Avoid water >70°C or hair dryers to prevent warping.
  • No Soapy Water: Do not use lubricants—they accelerate mould growth.
  • No Harsh Chemicals: Avoid bleach or acidic cleaners on the seal.

About SIMBA Seals UK

SIMBA Seals UK is a specialist UK shower door seal replacement brand, backed by a glass seal manufacturing team focused on seal profiles since 1998.

Through showerdoorseal.uk, we help customers find the right replacement seal by checking the glass thickness, gap size, seal profile, frame channel and shower door design.

Our range covers common bottom, side, magnetic and framed shower door seals. For older or harder-to-match enclosures, our wider catalogue includes over 9,000 glass seal profiles, giving customers more options when a standard seal is difficult to identify.

Photo guide showing what to send for shower door seal matching

Not sure which seal you need?

Send us a photo of your shower door edge and gap — we’ll help you find the right fit.

Have feedback on this seal? Tell us — we use customer input to improve future SIMBA designs.