Tools and Setup for Building a Resin Shower Tray

Key preparation makes all the difference: Use moisture-proof boards, high-quality epoxies and a spirit level for perfect results. Lay out protective sheets and ensure all mixing and working areas are ventilated and dust-free to keep contaminants away from your resin pour.

Step 1: Prepare the Base and Substrate

Begin by selecting a perfectly flat, stable, and moisture-resistant substrate—such as a waterproof MDF or cement board—large enough for your intended shower tray dimensions. Carefully measure and cut the substrate, making certain it will fit your shower enclosure with appropriate drainage slope (usually 1–2% gradient towards the drain hole). Mark the drain position and create any required cut-outs with precision.

It is vital to protect the entire base from moisture penetration over time. Seal the bottom and edges of your substrate using a reliable waterproof primer or membrane. Allow the substrate to dry thoroughly before moving on to the next step to prevent trapped moisture that could compromise the resin’s adhesion or cure.

Always check compatibility with your chosen resin before starting – especially if working over unconventional bases.

Step 3: Mix and Pour Your Resin Layers

With the formwork in place, measure out your chosen resin and hardener in accordance with the manufacturer’s ratio, mixing thoroughly in a clean bucket. For deep shower tray bases (5–10cm), “Epoxytable 10-Ten” – Deep Pour Epoxy Resin for Tables, Up to 10cm Casting is an optimal choice due to its low-exothermic reaction, high clarity, and strong moisture and heat resistance, giving you a working time suitable for precise pouring.

For base heights between 2–5cm, or if layering is needed to avoid overheating, “EpoxyTable 5-Five” – Deep Pour Epoxy Resin for Tables and Large Projects – Up to 5cm is a reliable alternative. Pour resin in gradual layers, allowing each to gel before topping up, to minimise heat generation and bubble entrapment.

Avoid pouring resin too thick in a single layer as this can lead to exothermic spikes, warping, or cloudiness – always follow product guidelines for maximum pour depth.

Tips, Common Mistakes and Troubleshooting

Achieving a flawless result demands patience and attention to condition-specific details. Always allow each layer to cure completely before pouring the next or proceeding to finishing. Environmental factors—such as humidity and ambient temperature—can strongly affect resin cure, clarity, and adhesion.

If you’re new to resin work, practice on smaller tray moulds (such as the “Tray” – Complete Resin Tray Kit with Silicone Mould and Colour Dyes) before attempting a full tray. This helps master mixing, pouring and level control. For extra guidance, a beginner-friendly kit like “River-Table” – Complete Kit for Creating Your First Epoxy Resin Table includes step-by-step instructions and polishing supplies to build confidence.

Allow each layer to cure fully before moving to the next step – rushing can lead to warping, incomplete bonding or hazy finishes.

Finishing Touches and Aftercare Advice

Protect your new resin shower tray for years: Wipe down surfaces with gentle, non-abrasive products and avoid harsh chemicals. Reseal edges with silicone as necessary to maintain a waterproof barrier, and keep drain areas clear to prevent standing water or long-term staining.