Onboard Tanking Kit with a large gray bucket, a smaller gray tub labeled Membrane, a bottle of Primer, a roll of waterproofing tape, blue gloves, and a brush on a white background.
A gray plastic bucket of OnBoard Tanking Kit waterproofing material with a blue and white label, shown on a clean white background.
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Onboard Tanking Kit with a large gray bucket, a smaller gray tub labeled Membrane, a bottle of Primer, a roll of waterproofing tape, blue gloves, and a brush on a white background.A gray plastic bucket of OnBoard Tanking Kit waterproofing material with a blue and white label, shown on a clean white background.

Onboard Waterproofing Kit – Complete Tanking Kit for Wetrooms, Showers & Bathrooms (10m²)

Onboard
Price:
£47.99

Description

The Onboard Waterproofing Kit is a complete tanking system for wetrooms, showers and bathrooms, giving professional tilers and DIY installers everything needed to create a fully waterproof substrate before tiling. Designed for use ahead of ceramic and porcelain tiling, it provides a reliable secondary waterproof barrier in areas subject to constant or frequent water exposure.

Each kit includes a flexible waterproofing membrane, primer, fleece reinforcing tape and application accessories, giving a complete solution in one pack rather than sourcing components separately. The membrane cures to form a seamless, flexible waterproof layer that resists cracking and moisture ingress, protecting walls and floors beneath the tiled finish.

Key Benefits

  • Complete tanking solution in a single kit — no need to source separate components
  • Flexible membrane resists cracking under normal building movement
  • Fleece tape reinforces vulnerable wall/floor junctions and internal corners
  • Suitable for use with tile backer boards, plaster, render and concrete substrates
  • Covers up to 10m² per kit

Applications

Ideal for shower enclosures, wet rooms, bathroom walls and floors, and other interior wet areas prior to tiling. Suitable for use over concrete, sand/cement render, plasterboard and tile backer board substrates. Used by professional tilers, bathroom fitters and wetroom installers, as well as competent DIY users tackling a bathroom renovation.

Performance & Application

Prime the substrate with the supplied Onboard primer, then apply the waterproofing membrane by brush in even coats, reinforcing all corners and wall/floor junctions with the fleece tape. Once fully cured, the membrane provides a continuous waterproof layer ready to receive tile adhesive directly.

Millcot supplies trade-quality tanking and waterproofing systems trusted by tiling professionals across the UK — the Onboard Waterproofing Kit is a straightforward, reliable choice for any wetroom or bathroom project.