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When installing a blade resin floor, excess moisture is one of the most common causes of failure. Proper preparation helps you avoid bubbling, poor adhesion, and unexpected delays during installation.
Why Moisture Poses a Risk to Resin Floors
If the substrate beneath your resin floor contains excessive moisture, the resin may not bond securely. This can lead to blistering, peeling, or reduced long-term durability. Moisture trapped beneath a sealed surface may also cause cloudy patches and even encourage the growth of mould.
How to Test and Prepare the Substrate
To prevent issues, always assess moisture levels before beginning. For concrete and screed, a simple moisture meter or a taped plastic sheet left for 24 hours can help you gauge dampness. Surfaces should feel dry and show no condensation. If needed, allow extra drying time or improve ventilation. For maximum adhesion with resin primers such as “Epoxyprimer”, substrates must be free from visible damp or standing water before application.
When Moisture Checks Matter Most
- After cleaning or power-washing floors, as residual damp may linger
- During wet or humid weather
- On new screeds or concrete, which often retain moisture longer than expected
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By staying vigilant about moisture control, you safeguard the lifespan and appearance of your resin blade floor. For more step-by-step resin application guidance, see our main advice pages on preparing and installing resin floors.