• "Profile view of the V456S12 bottom seal fitted on 4–6mm glass, showing the transparent U-channel with integrated side guide rail and a centrally positioned 12mm fin for consistent sealing on standard shower thresholds."
  • "Technical dimension diagram of the V456S12 strip, detailing the 4–6mm inner channel width, central 12mm fin length, and precise measurements of the side guide rail and base profile for accurate installation."
  • SIMBA bottom sealing strip compared to other brands' sealing strips
  • Why choose SIMBA shower seals: 30,--- uses tested, Quality rubber material, reach certified, and UK fast delivery
  • "Macro close-up of the V456S12 transparent profile, highlighting optical clarity and the symmetrical, centred fin design that ensures even contact and discreet visual integration on glass panels."
  • "Installation orientation guide for the V456S12 seal, clearly marked with 'Inside' and 'Outside' indicators showing how it clips onto 4–6mm glass with the central fin directed towards the shower interior."
  • Application guide for the shower seal
1 9

4-6mm Glass Bottom Seal With 12mm Fin V456S12

£14.88
£20.88 £14.88
Sold out
-29%
Taxes included. Shipping calculated at checkout.
Total Length: 950mm
Gap: Seal 12mm

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Description

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professional solutions for your shower door


Technical Specifications

Catalog No. V456S12
Glass Compatibility Fits 4mm, 5mm & 6mm perfectly
Gap Sealed 9–12mm (Ultra-Discreet)
Installation Push-fit (No glue required)
Material Anti-UV Flexible PVC (Stable < 70°C)
What's in the Box? 1x Seal + FREE D510 Threshold
Free UK Shipping | VAT Inc. | 10-Month Warranty | 30-Day Returns
Need another size? Check our full bottom shower seals collection for 4-6mm alternatives.

FAQ

Is the V456S12 Right for My Enclosure? +

Specifically engineered for 4mm to 6mm frameless glass, the V456S12 offers a sophisticated balance of performance and aesthetics. It features a central 12mm deflector fin supported by a stabilising side rail.

Unlike basic designs, the junction between the U-channel and the fin is strategically reinforced to prevent splitting. It provides a secure, high-tension grip without adhesives.

👉 Exclusive Bonus: Each order includes a complimentary D510 Threshold Bar. Together, they create a superior "Dual-Layer Leak Protection System."

Will this seal fit 5mm glass securely? +
Yes. The V456S12 utilizes a tapered U-channel that adapts to any glass thickness between 4mm and 6mm. With an increased channel height of 11mm, it provides a deep "bite" on the glass, ensuring the seal remains firmly seated.
How do I use the complimentary D510 Threshold? +

The D510 bar is designed to sit directly beneath the seal on your tray or floor. When the door closes, the 12mm fin overlaps with the bar to create a secondary seal.

Expert Tip: Aim for a maximum overlap of 5mm. Any more may cause unnecessary friction when opening or closing the door.

Will it stay clear or turn yellow? +
We manufacture the V456S12 using Medical-Grade Virgin PVC, fortified with professional-grade UV stabilisers and anti-fungal agents. This ensures the profile remains transparent and supple, resisting clouding and brittleness.
Installation & Expert Advice +

To ensure your new seal performs at its best, we’ve prepared a specialist guide covering:

  • The Install Order: Should you fit vertical or bottom seals first?
  • Gap Analysis: Is a 12mm fin the correct height for your specific clearance?
  • Mould Prevention: Proactive steps to keep your PVC crystal clear.

Master your installation: [The V456S12 System Guide: Selection & Fitting Tips →]


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
"Profile view of the V456S12 bottom seal fitted on 4–6mm glass, showing the transparent U-channel with integrated side guide rail and a centrally positioned 12mm fin for consistent sealing on standard shower thresholds."
4-6mm Glass Bottom Seal With 12mm..
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Simba Professional Care Guide

Ensure a perfect fit and a lifetime of clarity.

4-6mm Glass Bottom Seal With 12mm Fin V456S12 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.

Quality & Environmental Standards

Simba® seals are manufactured to the highest international standards, ensuring safety and sustainability for your home.

ISO 9001:2015 Quality Management

ISO 9001:2015

Premium quality control ensuring consistent product durability and precision fit.

ISO 14001:2015 Eco-Friendly

ISO 14001:2015

Manufactured with a commitment to environmental responsibility and eco-friendly processes.

SVHC REACH Compliant

SVHC / REACH

Certified non-toxic and safe for domestic use, free from harmful substances.

Installation & Maintenance Support

Unlike standard recycled strips, this profile is engineered with our signature UV-stabilised formula to prevent yellowing and brittleness.

Learn more about the science behind our High-Performance PVC Durability and why it outlasts high-street alternatives.

See why and how to Protect your seals from limescale.

SIMBA shower screen seal, Premium Clarity. Flawless Fit.

Can’t Find the Right Seal?

As a leading manufacturer, SIMBA stocks over 9,000 styles. From vintage screens to modern doors, we’ve got you covered.

Stuck on which one to pick? Drop us a message. We’re here to help you get that perfect, water-tight fit!

Need guide installing this seal?

We're the SIMBA makers, and we're always listening.

Since we design and make our own seals, we can actually do something about it.

If you spot anything that could be better—no matter how small—we’d genuinely love your feedback. Let’s make the next version perfect, together.