How to remove urine from concrete or outdoor pavers
Concrete surfaces are porous, requiring liberal application of urineFREE with delayed evaporation.
If the uric acid crystals in the urine have discoloured or edged the surfaces, this change is unfortunately irreversible. Like bleach to clothing, the uric acid crystals given too much dwell time can cause some surfaces to discolour and/or burn. Immediate treatment on these surfaces with urineFREE is recommended.