• Close-up cross-section of the SL810DTL bathroom shower door bottom seal fitted on 8-10mm glass, showcasing the transparent PVC U-channel with a unique combination of a hard side rail and soft fin, engineered to cover larger floor gaps of 5-8mm.
  • Technical dimension diagram for the best shower door bottom seal, detailing the inner channel width, adjustable gap coverage of 5-8mm, hard rail height, and overall profile dimensions, suitable for heavy-duty sliding doors with 8-10mm thick glass.
  • Eco-certification evidence for the SL810DTL, confirming SVHC content below 0.1% and compliance with strict environmental safety standards for healthy, non-toxic bathroom installations
  • High-clarity close-up of a bottom glass shower door seal, showcasing the all-PVC construction of the SL810DTL, highlighting its smooth finish, anti-UV transparency, and the durable seamless connection between the hard rail and soft fin.
  • Micro-view of the bottom of glass shower door seal, showing reinforced U-channel walls for a firm grip on 8-10mm glass, and how the single-sided hard rail provides support to the soft wiper fin for lasting sealing performance.
  • Installation guide for a bottom seal for shower door, demonstrating the correct orientation of the SL810DTL clipped onto the glass edge, specifically indicating that the side with the hard rail should face the shower interior to align with sliding tracks and provide stable water deflection.
  • Durability test results for the SL810DTL, showing superior cold-resistance and high-rebound elasticity after twisting and freezing, proving long-term performance in varying UK bathroom temperatures.
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8-10mm Heavy-Duty Shower Sliding Door Bottom Seal Gap 5-8mm SL810DTL

£3.59
£20.88 £3.59
Sold out
-83%
Taxes included. Shipping calculated at checkout.
Total Length: Sample 100mm
Gap: Seal 8mm

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Description

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Technical Specifications

Catalog No. SL810DTL
Glass Type 8mm / 9mm / 10mm
Gap Coverage 5-8mm
Position Bottom of door
Installation Quick Push-on (No tools, tape, or glue required)
Material REACH-Certified, High-Clarity Virgin PVC
Length 950mm Clear Strip (Easily trimmed to size)
Free UK Shipping | VAT Inc. | 10-Month Warranty | 30-Day Returns

Looking for a different size?


As our flagship model, the SL810DTL underwent our rigorous -39.5°C Freeze Test. See how its premium PVC formula outperformed generic brands in extreme cold.
Why Choose the SL810DTL Bottom Seal? ▼

Struggling with water leaking through a wide gap (5-8mm) due to uneven flooring or a high threshold? The SL810DTL features extra-long, reinforced side fins specifically engineered to bridge these large distances without sagging. Compatible with 8-10mm thick glass and any shower door type, it is the ultimate solution for challenging installations where standard seals fail.

  • Precision Fit for Modern Glass: Engineered specifically for 8mm, 9mm, and 10mm toughened glass. The rigid U-channel ensures a secure, "non-slip" grip that won't slide off over time.
  • Intelligent Hybrid Design: Features a dual-hardness construction. The rigid body provides structural integrity, while the soft, side-orientated fin creates a watertight barrier without adding unnecessary friction.
  • Low-Clearance Specialist: This is the ultimate solution for sliding doors with internal tracks or enclosures with a narrow 5mm to 8mm bottom gap. Because the fin originates from the side, it seals the gap without dragging against the tray or track.
  • Smooth, Frictionless Operation: Unlike traditional vertical sweeps that can make doors feel "stiff," our soft-flex side fin ensures your door glides or swings freely—maintaining 100% water-tightness with zero sticking or straining.
  • Virgin PVC Clarity: Manufactured from REACH-certified, anti-UV virgin PVC. Unlike cheap supermarket alternatives, SIMBA seals stay crystal clear, resist yellowing, and feature an anti-fungal additive to prevent mould build-up.
💡 SIMBA Pro-Tip for SL810DTL ▼

This model is a lifesaver for sliding shower doors. Many customers find that standard 'drip-fin' seals are too tall and get jammed in the bottom track. The side-mounted fin on the SL810DTL provides that crucial lateral seal, keeping the water inside the tray while allowing the rollers to move smoothly. If your gap is 5-8mm, this is your #1 choice.

Need other bottom strips? Check out our full range of bottom gaskets with a lifespan of 30,000 uses.

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
Close-up cross-section of the SL810DTL bathroom shower door bottom seal fitted on 8-10mm glass, showcasing the transparent PVC U-channel with a unique combination of a hard side rail and soft fin, engineered to cover larger floor gaps of 5-8mm.
8-10mm Heavy-Duty Shower Sliding Door Bottom..
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Simba Professional Care Guide

Ensure a perfect fit and a lifetime of clarity.

8-10mm Heavy-Duty Shower Sliding Door Bottom Seal Gap 5-8mm SL810DTL 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.