Australian Polymore · Safe Tray
Pre-sloped BMC tile-over shower tray — no screed

Safe Tray (BMC) Tile
Over Shower TrayDoc ID AP-TT-INSTALL-002

What this product is: Safe Tray is a pre-sloped BMC (bulk moulding compound) tile-over shower tray. It replaces the traditional sand/cement screed — the factory slope is built in. Tiles are laid directly over the tray after the waterproofing membrane cures. It is not a finished-surface shower base. Models: TT-9090R · TT-9090C · TT-1010C · TT-12090C · TT-9090RT · TT-9090CT · TT-1010CT · TT-12090CT (centre or rear waste; tile insert or stainless steel grate options).

Before you start

Inspect the tray Check the tray for transit damage before install. The stainless steel puddle-flange plate is factory-bonded — do not remove or disturb it.
Substrate (timber floor) Joists at centres to suit floor sheathing. Where the tray drops in, fit noggins between joists to support all four tray edges. Fix structural sheet flooring (compressed fibre-cement or equivalent wet-area sheet) across the joists as the sub-floor. The sub-floor must be flat and level — high or low spots will transfer through to the tray and tiles.
Substrate (concrete) Slab must be cured (≥ 28 days), dry, flat and level. Prime per adhesive manufacturer's instructions before bedding.
Tools & materials Non-solvent polyurethane adhesive (waterproofing-grade) · polyurethane sealant for flashing · 40 × 40 mm aluminium angle (water-stop) · 10 × 60 mm flashing (supplied with tray) · spirit level · tape · pencil · marker · hole saw for waste pipe · plumb glue for puddle flange · bags of mortar or cement for weighting the tray during cure. PPE: safety glasses, gloves, dust mask (crystalline silica when cutting tiles — state codes apply).
WHS Two-person lift. Polyurethane adhesive is non-solvent but check the SDS for ventilation requirements. Crystalline silica: comply with state codes (NSW/QLD/SA/WA/TAS/ACT) when cutting tiles or masonry.

Installation (timber floor — 5 steps)

Sub-floor preparation

Cut the floorboard to size where the Safe Tray will drop into the floor. Install noggins between the joists so the tray is fully supported on all four edges. Fix structural sheet flooring across the joists as the sub-floor. Check the sub-floor is flat and level before proceeding — high or low spots will telegraph through the finished tile.

Glue wall-side flashing to tray

Before installing the tray, glue the supplied 10 × 60 mm aluminium flashing to the sides of the tray where the tray will go behind walls. Use polyurethane adhesive. These flashing lips sit behind the wall sheeting to form a continuous waterproof upturn.

Position, mark & cut waste

Position the tray on the floor and mark the drain location and the outside edge of the tray. Remove the tray, cut the floor board and drain hole, and finalise the plumbing connection to the waste pipe (trap and sanitary plumbing per AS/NZS 3500.2).

Bed & bond tray

Glue a 40 × 40 mm aluminium angle to the floor at the outside line of the Safe Tray mark — this is the perimeter water-stop. Apply non-solvent polyurethane adhesive to both the underside of the tray and the sub-floor. Place the tray in position, apply downward pressure, and check level. Weight the tray with bags of mortar or cement to ensure full contact with the sub-floor until the adhesive cures (typically 24 h).

Fit puddle flange, then waterproof & tile

Apply a bead of polyurethane adhesive on the stainless steel plate where the puddle flange will sit. Apply plumb glue to the drain pipe and fix the puddle flange in position, then apply a bead of polyurethane around the outside edge of the puddle flange. Flood test: plug the waste, fill to the top of the tray, hold for 30 minutes — no leaks. Then proceed to wall sheeting, then waterproofing membrane per AS 3740:2021, then tile direct to the tray surface.

Note: Wall sheeting is installed after the tray is bedded — the 10 × 60 flashing sits behind the wall lining to maintain waterproof continuity. Do not fix wall sheeting before bedding the tray.
Adhesive note: Use only non-solvent polyurethane adhesive. Solvent-based adhesives attack BMC and will void the manufacturer warranty.

Care & cleaning (post-tile)

Safe Tray itself is covered by the tile finish — clean the tiled surface with a soft cloth or mop using warm soapy water or a mild household detergent. Avoid abrasive cleaners, scourers, solvents and acids on the tile finish.

Warranty (5 years)

Australian Polymore Safe Tray (BMC) tile-over shower trays are warranted for five (5) years from the date of purchase against faulty materials or workmanship under normal domestic use. The warranty does not apply to defects caused by incorrect installation, solvent-based adhesives, impact damage, modifications, commercial use, or failure to follow these instructions.

This warranty is in addition to the rights and remedies you have under the Australian Consumer Law (Competition and Consumer Act 2010 (Cth), Schedule 2). The guarantees under the ACL cannot be excluded. Nothing in this warranty affects those rights.

To make a claim, lodge online at polymore.com.au/page-8/warranty-claim.html or email sales@polymore.com.au.