Curved Glass Seals

Our pre-curved seals are engineered specifically for UK quadrant and P-shaped screens—no fiddly heating or risky bending required.

They easily fit 3mm–12mm glass and gaps from 9mm to 35mm. As a mark of quality, these are the only seals in the UK market tested to last 30,000+ cycles.

Find your perfect curve and secure your dry bathroom today.


UK Stock
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Fit Guarantee
30,000 Cycle Tested

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9 products

Self Adhesive Curved Bath Seal Trim Gap 12-35mm V312S1235FSelf Adhesive Curved Bath Seal Trim Gap 12-35mm V312S1235F

Self Adhesive Curved Bath Seal Trim Gap 12-35mm V312S1235F

£14.88
£20.88 £14.88
Close-up cross-section of the V456S12CU curved shower screen seal fitted on 4-6mm curved glass, showing the rigid transparent U-channel, soft side guide rails, and central 12mm single fin, highlighting the reinforced joint between hard and soft sections to prevent snapping when bent.Technical dimension diagram for a curved bath screen seal, detailing the inner channel width, 12mm fin length, side rail height, and overall profile cross-section, engineered specifically to fit the edges of 4-6mm thick curved glass.

Curved Shower Seal for 4-6mm Glass Fin 12mm V456S12CU

£19.80
£31.19 £19.80

Close-up cross-section of the V456S16CU curved shower screen seal strip fitted on 4-6mm curved glass, showing the rigid transparent U-channel, soft side guide rails, and central 16mm single fin, highlighting the reinforced transition zone for enhanced durability when bent.Technical dimension diagram for a curved shower screen seal, detailing the inner channel width, 16mm fin length (offering greater gap coverage), side rail height, and overall profile cross-section, engineered specifically to fit the edges of 4-6mm thick curved glass.

Curved Shower Seal for 4-6mm Glass Fin 16mm V456S16CU

£19.80
£31.19 £19.80
Close-up cross-section of the V456S20CU curved shower door seal strip fitted on 4-6mm curved glass, showing the rigid transparent U-channel, soft side guide rails, and central 20mm single fin, highlighting the reinforced joint designed to withstand wide-radius bending without snapping.Technical dimension diagram for a curved shower door seal strip replacement, detailing the inner channel width, extra-long 20mm fin length (for bridging larger floor gaps), side rail height, and overall profile cross-section, serving as an ideal substitute for worn-out seals.

Curved Shower Seal for 4-6mm Glass Fin 20mm V456S20CU

£19.80
£31.19 £19.80
Close-up cross-section of the V456S23CU curved bath seal trim fitted on 4-6mm curved glass, showing the rigid transparent U-channel, soft side guide rails, and central extra-long 23mm single fin, highlighting the reinforced joint designed to support the stability of such a large fin.Technical dimension diagram for a curved bath screen seal strip, detailing the inner channel width, maximum 23mm fin length (for bridging wide floor gaps), side rail height, and overall profile cross-section, providing precise data for curved glass requiring maximum coverage.

Curved Shower Seal for 4-6mm Glass Fin 23mm V456S23CU

£19.80
£31.19 £19.80

Close-up cross-section of the V810S12CU curved bath shower screen seal fitted on thick 8-10mm curved glass, showing the rigid transparent U-channel, soft side guide rails, and central 12mm single fin, highlighting the reinforced joint designed to ensure structural integrity when bending thicker glass.Technical dimension diagram for a shower seal curved bath screens, detailing the inner channel width sized for 8-10mm glass, 12mm fin length, side rail height, and overall profile cross-section, providing precise specifications for replacement or installation.

Rubber Seal For Curved Bath Screens 8-10mm Glass Fin 12mm V810S12CU

£19.80
£31.19 £19.80
Close-up cross-section of the V810S16CU shower screen curved seal fitted on 8-10mm heavy-duty curved glass, showing the rigid transparent U-channel, soft side guide rails, and central 16mm single fin, highlighting the reinforced joint designed to withstand the stress of bending thick glass.Technical dimension diagram for a seal for curved shower screen, detailing the inner channel width sized for 8-10mm glass, 16mm fin length, side rail height, and overall profile cross-section, providing precise data for those seeking replacements with specific thickness and length requirements.

Curved Shower Seal for 8-10mm Heavy-Duty Glass Fin 16mm V810S16CU

£19.80
£31.19 £19.80
Close-up cross-section of the V810S20CU curved bath screen seal replacement fitted on 8-10mm heavy-duty curved glass, showing the rigid transparent U-channel, soft side guide rails, and central 20mm single fin, highlighting the reinforced joint designed to ensure perfect conformity to the radius of thick glass during replacement.Technical dimension diagram for a curved bath screen seal (20mm fin variant), detailing the inner channel width sized for 8-10mm glass, maximum 20mm fin length (for covering wide floor gaps), side rail height, and overall profile cross-section, providing precise specifications for curved glass requiring large-span sealing.

Curved Shower Seal for 8-10mm Heavy-Duty Glass Fin 20mm V810S20CU

£19.80
£31.19 £19.80
Close-up cross-section of the V810S23CU shower seal for curved screen fitted on 8-10mm heavy-duty curved glass, showing the rigid transparent U-channel, soft side guide rails, and central 23mm single fin, highlighting the reinforced joint designed to keep the extra-long fin secure even when bending thick glass.Technical dimension diagram for an 8-10mm curved shower door seal, detailing the inner channel width sized for heavy-duty glass, maximum 23mm fin length (for bridging extremely wide floor gaps), side rail height, and overall profile cross-section, providing precise data for thick glass doors requiring maximum coverage.

Curved Shower Seal for 8-10mm Heavy-Duty Glass Fin 23mm V810S23CU

£19.80
£31.19 £19.80
The difference is in the curve. Our seals are pre-curved for a perfect fit.

Perfectly Curved Seals for Glass Doors

The difference is in the curve.

Most pre curved shower screen seals don’t match the glass, causing twists and gaps.

SIMBA seals are engineered with a precise curve, giving you a smooth, tight fit every time.

Complete Bottom Seal Learning Guide
Curved Shower Seal Installation

FAQ For Curved Shower Door Seal

  • My curved shower door seal keeps popping off at the ends. Why?

    Most curved glass has a radius around 800mm. Some brands' seals can't match this precise curve.This causes a constant 'spring back' force at the ends, making them pop off. Simba‘s curved seals are engineered with a specific, tight pre-curve to eliminate that pop-off effect entirely.

  • Do curved shower seals need to be replaced more often than straight ones?

    No. Durability should be the same. All our seals (straight and curved) are independently tested to last over 30,000 uses under normal conditions.

  • Will a straight bottom seal work on a curved door if I heat it?

    ⚠️ Professional Warning (SIMBA Does Not Recommend): While heating a shower straight bottom seal can make PVC temporarily flexible, it permanently damages the material's structural integrity and lifespan. This leads to gaps, reduced sealing pressure, and early cracking. We strongly advise against heating.

  • How do you fix leaks around the bottom metal hardware on a curved shower door?

    This leaking usually starts from tiny gaps where the seal meets the metal fittings. Our solution is simple: Install the PV29 threshold strip on the edge of your shower tray or bath. This effectively stops water from pooling near the hinge corner, preventing seepage.

  • Which way round should the curved shower door seal be fitted?

    The section with the drip rail should always face towards the inside of the shower door.

  • Do I need a specific seal for a shower screen over a bath?

    Our seal for curved shower screen over bath is ideally suited for this specific setup. You simply need to select the right product based on your glass thickness and the gap size.

  • My curved shower seal keeps coming off, how to fix it?

    This usually means the seal size doesn't match your glass thickness. A properly fitted seal should withstand a pull force greater than 50 Newtons (N) without detaching.

  • Can I use a straight shower seal on a curved door?

    No, this is not advisable. A straight seal won't fit the curve, making installation impossible, and the ends will constantly pop out.

Real Installation Gallery

See how our seals fit in actual UK bathrooms

Shower Seal Installation by Anthony N.
✓ Verified Anthony N.

Uploaded on 26/02/2026

Shower Seal Installation by Helen
✓ Verified Helen

Uploaded on 29/12/2025

Join 10,000+ happy UK customers. Guaranteed precision fit for framed & folding screens.

Leading Manufacturer of Precision Curved Shower Seals

As a direct manufacturer, SIMBA UK eliminates the middleman to provide trade-quality curved shower screen seals at factory prices. Our production focus ensures that every seal—from our high-volume V456 lines to our specialist V810 heavy-glass range—meets rigorous British bathroom standards.

Why SIMBA is the UK’s #1 Choice for Curved Seals

  • ✓ 30,000 Use-Cycle Tested: The only seals in the UK market independently tested to resist splitting for over 20 years of daily use.
  • ✓ R800 High-Flex Technology: Specifically molded for common UK radii (Aqualux, Merlyn, Coram, and more).
  • ✓ Gap Coverage Specialist: From slim 9mm drips to extreme 35mm gap-closers for sagging doors.
  • ✓ Stay-Clear™ UV Protection: Guaranteed to resist yellowing from hard water and UV exposure.

Choosing the Right Curved Seal

1. Measure Your Glass: Most UK curved doors are 4mm, 6mm, or 8mm. Check your glass thickness before ordering to ensure a secure "push-fit" grip.

2. Check the Gap: Measure the vertical distance from the glass edge to the tray. We offer fins from 12mm to 23mm to bridge even the widest settled gaps.

3. Corner Leaks? For 100% protection, we recommend pairing your new seal with our [PV29 Threshold Strip] to block vulnerable hinge gaps.

Compatibility Quick-Reference

Swipe left to view more →
Your Gap Size 4mm–6mm Glass 8mm–10mm Glass Best For
9–12mm V456S12CU V810S12CU Standard Fit
13–16mm V456S16CU V810S16CU Mid-Gap Fix
17–20mm V456S20CU V810S20CU Dropped Doors
21–23mm V456S23CU V810S23CU Extreme Leaks