Multiline Sealin
Introduction to the system

ACO Multiline Sealin is a new high strength channel drainage system with an integrated seal as standard, which allows easy installation and a tested solution for comprehensive groundwater protection.

The channel not only meets but surpasses the requirement for water tightness under EN1433 and has been tested for 72 hours rather than the standard 30 minutes. The channel has also been tested under real life conditions, with 500,000 load cycles. After this rigorous testing the system was still water tight for 72 hours and achieved IKT* approval seal D00978.image

Comprehensive use of seals throughout the whole channel system including sumps and vertical outlets, mean that Sealin is an advancement on EN1433 requirements which only require testing of a two channel section for water tightness. Sealin is a fully sealed channel system solution.

The system is suitable for use in a wide range of applications including commercial and residential developments, pedestrian precincts, landscaping and parking areas for all vehicle types. Compatible with a large range of MultiDrain gratings, including Brickslot, which is a discreet choice for any building project. ACO Multiline Sealin is available in 100mm wide channels in both constant and sloping channels.

ACO Multiline Sealin is a tough and robust channel drainage system which provides high chemical resistance and the light weight design ensures quick and easy installation. The integrated seal means you are no longer reliant on a secondary sealant application during installation on site. Multiline Sealin requires only a traditional seal lubricant, which can be applied in seconds, as opposed to the time consuming seal gun application.

As standard the channels are manufactured with galvanised steel edge rails, which provides optimum channel protection.

The system is fully certified and CE marked to BS EN 1433: 2002 from Load Class A15 pedestrian areas, up to and including Load Class D 400 suitable for parking of all types of road vehicles**

*IKT - Institute for Underground Infrastructure is a neutral, independent non-profit institute based in Gelsenkirchen, Germany that works on solving practical and operational issues concerning underground sewers, pipes and other conduit engineering
**This system is not suitable for carriageways of public roads or motorways

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  • Channel system available in 100mm widths
  • Integrated EPDM seal on channels, sumps and accessories
  • Protective galvanised edge rails for improved strength
  • V shaped channel bore improves speed of water flow and promotes self-cleansing
  • Channel unit and seal edge manufactured from high strength polymer concrete
  • System fully certified and CE marked to Load Class D 400 BS EN 1433: 2002. Not suitable for carriageways of public roads or motorways
  • Strong and lightweight design improves stability and anchors product into concrete surround
  • Anti-shunt prevents grating movement once installed


  • Provides an efficient drainage solution for a wide variety of applications
  • Confidence that the channel has been installed with a seal, rather than relying on on-site sealant application
  • Range of constant and sloped channels
  • Caters for a range of catchment areas
  • Strong and robust channel design
  • Galvanised edge rail for improved strength and durability
  • System fully certified and CE marked to Load Class D 400 BS EN 1433: 2002. Not suitable for carriageways of public roads or motorways
  • Choice of outlet options, sumps, outlets and accessories, all with integrated seals
  • Unique ACO Drainlock grating fixing improves hydraulic capacity
  • Lightweight design is simple and fast to install, sealed without secondary sealant application

Recommended applications

  • Threshold Drainage
  • Public landscaping
  • Car parking areas
  • HGV parking
  • Light industrial
  • SuDs

Not recommended applications

  • Public highways
  • Heavy industrial
  • Airports
  • Port and dock side
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