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If you’re building a resin shower tray, it might be tempting to pour resin as thick as possible in one go—however, this approach can cause several problems. Controlling the thickness of your pour is crucial for durability and a smooth finish.
Why Thick Resin Layers Can Cause Problems
Pouring epoxy resin too thickly in a single layer can lead to several issues. Most resins generate heat (an exothermic reaction) as they cure. If the resin is poured thicker than recommended, excessive heat can build up, causing cracking, yellowing, or even warping. Thick pours also increase the risk of trapped air bubbles that are difficult to remove, resulting in a cloudy or uneven finish—particularly important on practical surfaces like shower trays.
Recommended Pouring Techniques
To achieve a strong and flawless result, pour resin in multiple thin layers rather than one deep pour. For example, using a product like EpoxyTable 5-Five, you can safely pour in layers up to 5cm thick. For deeper pours, opt for advanced formulas such as Epoxytable 10-Ten, but always check the product’s recommended maximum thickness per pour and allow full curing between layers. This staged approach helps minimise heat and ensures each layer is clear and bubble-free.
Practical Tips for Shower Tray Projects
- Follow the manufacturer’s guidelines for maximum pour thickness.
- Allow sufficient curing time between layers before adding more resin.
- Avoid working in hot or humid conditions to keep curing controlled.
- Always use clean, level moulds or bases for even results.
When This Matters Most
Layering resin is especially important when making structural and functional items like a resin shower tray. Correct layer thickness helps achieve the strength, clarity, and finish necessary for everyday use.
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Building up your resin shower tray in well-managed layers will set the foundation for a long-lasting and attractive result. For more guidance on creating bespoke shower bases from resin, explore our complete guide on how to build a resin shower tray.