Marmox (UK) Ltd


We are one of the world's leading manufacturers of chemicals and building materials. Our extensive services extend to an impressive shower former range.

As well as shower former options, we also provide:

  • Curved board
  • Pipe boxing
  • Thermoblock
  • Shower bases

Wet Room Insulation Board

We provide high-quality wet room insulation board. Our wet room insulation board is particularly versatile and can be applied to walls, floors and ceilings.

It is easy to manage and apply as it can be simply glued in place with a solvent-free adhesive.

Wet Room Insulation Board

Preformed Shower Trays

Included in our extensive range of available products, we supply preformed shower trays.

Our preformed shower trays are manufactured to the highest quality and come with the guarantee of durability and versatility.

Preformed Shower Trays

Marmox Boards

Marmox MultiBoards are high performance, reinforced, insulation boards made of waterproof extruded polystyrene, each side faced with fibreglass mesh embedded into a cement polymer mortar. Marmox MultiBoard is the perfect solution for insulating and waterproofing in one operation.   The Marmox Board offers you a wide range of advantages including: 
  • Waterproofing & a barrier against damp
  • Thermal insulation impact
  • Sound reduced by 25 decibels
Marmox Boards can be used for all kinds of applications, including: 
  • Rigid boarding for partitions
  • Wet rooms
  • Loft conversions
  • Shower cubicles
Marmox Boards

Curved Boards

Flexible curved boards are especially useful in bathroom constructions. Apart from having aesthetic values they are proven time savers.


Benefits include:

  • Curved boards are pre-cut boards available in the transverse direction
  • They are ideal to form curved profiles such as arches
  • Can be used in conjunction with all Marmox fixing accessories
  • All joints can be reinforced with fibreglass tape and a layer of flexible tile adhesive applied
Curved Boards

Pipe Boxing

Marmox angles boards are ideal for pipe boxing. They are pecially designed to enable fast, clean boxing-in of exposed pipework. The Marmox angle boards are completely waterproof so they are suitable for shower areas and wet rooms where pipe boxing is required.

The board is specially formed to produce a 90º right angle when folded. A double sided, waterproof, self-adhesive tape is situated within the fold to hold the board in place during installation.

The board can be easily cut in straight lines and around uneven structures. It can be fixed to battens and plastered, painted or tiled to blend with the surroundings.

Pipe Boxing


We provide easy waterproofing for your shower or wet room.

The Marmox Showerlay is a low-cost, easy-to-install waterproof base used in the design of a wet room for the home. The Showerlay is easily cut into any size or shape and forms a floor level, barrier-free panel ready to receive tiles.
Unlike many other shower tray brands, a Marmox showerlay is robust enough to allow mosaic tiles as small as 50mm to be laid on it without the risk of compression through point loading.   Features and benefits include:
  • Pre-formed slope to drain
  • Easy access, floor level (ideal for elderly or disabled)
  • Can be finished with tiles to match decor
  • Can be cut to fit on site


The Marmox Showerstone is a solid shower base layed directly onto floor joists without any further support needed. Made from a polymer (acrylic) modified concrete, the Showerstone can be increased in size by adding a separate extension piece.

Unlike many other shower tray brands, a Marmox showerstone is robust enough to allow vinyl and mosaic tiles to be laid on it without the risk of compression through point loading.


They are:

  • Self supporting (lay directly onto floor joists)
  • Fully waterproof with no further treatment needed.
  • Can be fixed to timber or concrete floors
  • Available with offset or central drain

Thermal Bridging

We manufacture the world's strongest thermal bridging block.

Marmox Thermoblocks are designed to replace the bottom layer of bricks or blocks in a wall in order to prevent thermal bridging where the floor meets the base of the wall. Call today if you are interested in using the strongest thermal bridge block in the world.

Thermal Bridging


 A full range of Marmox accessories and fixing tools are available through our stockists including:

Marmox Reinforcing Tape is an alkali-resistant, glass fibre mesh skrim tape. This product is self adhesive and should be placed over all the joints between Marmox boards in dry areas.

Marmox Self-Adhesive Waterproof Tape is a simple way to create a permanent waterproof seal. This product should be used around all shower formers where it meets the adjoining floor, the wall and the internal corner. It should also cover joints in all areas prone to regular wetting. The seal is made by peeling off the backing paper to activate a permanent waterproof adhesive which is then pressed firmly into place. The tape must be subsequently secured be completely covering it in tile adhesive when the tiles are applied. 

Wall Brackets are used for connecting the boards with the wall or the floor. The bracket spikes are pressed firmly into the surface of the board, and then the board is offered in position, and screwed through the holes of the bracket.

Perpendicular Brackets are used to hold two boards perpendicular while the adhesive is drying. The bracket spikes are pressed firmly into the surface of each board, after applying a bead of silicone on each board side.

Joint Brackets connect two boards together in line such as partition wall. The bracket spikes are pressed in the blue core of each board after applying a bead of silicone in between. 

Marmox Washers, used with the appropriate screws and our slim-line plastic washers, grip tightly into surface as they become almost flush with the board. Packs of plastic washers are sold in bags of 100. We also sell steel washers.

Using Marmox 60mm Dowels is a fast and reliable method of fixing 10mm, 12.5mm, 20mm and 30mm board.  We use the tough corrosion free dowels. With the boards in place, a hole is drilled through the board into the wall using a 10mm bit, the stem is inserted into the hole and the nylon expansion pin is then driven into the stem to expand the tail of the fixing.


Marmox (UK) Ltd

Marmox (UK) Ltd is a British company that forms part of the Marmox group of companies. We provide competitive and well-made products for use in the construction and refurbishment industries.

The directors of Marmox (UK) Ltd have in excess of 40 years experience in the design, manufacture, specification and marketing of construction materials.

Our company policy is to respond positively to our customers requirements and to remain in touch with market demands and trends.  We are keen to work with our customers to try to meet their specific needs and specifications.

We don’t sell direct to the public  - our products are available from a variety of stockists throughout the UK.

Marmox (UK) Ltd

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