Grease, oil, acids and other chemicals can damage concrete. Fuel spills, can drive deep into the concrete possibly harming the concrete or reinforcement steel. Creto produces an environmentally friendly water based cleaner/degreaser that can be used full strength or diluted depending on the severity of the stain to penetrate deep into the concrete purging out the contaminants. Once the concrete is clean, Creto Deep Penetrating Sealer (DPS) can be applied to seal the concrete and eliminate future contamination. This one-time lifetime application will reduce maintenance time, and strengthen the concrete. Creto TopSeal water repellent can be applied over the DPS to seal the top surface of the concrete, minimizing future stains.