HI-LITE is a premium semi penetrating sealer designed to darken and highlight the natural beauty of the stone without making the surface too slippery. HI-LITE is suitable for internal, external, domestic and commercial surfaces. Suitable for honed and polished block walling. May not be suitable for honed or polished natural stone and wet cast paving. Generally 2 even coats should be applied. Approx 10 to 12 square metres per litre per coat, pending on the porosity of the surface.