Suitable for Interior & Exterior use Effective at removing the majority of mineral oil and cooking oil stains (including oil spatters). Suitable for use on travertine, limestone, sandstone, slate, marble, porcelain, granite, terracotta, quarry tiles, brick, concrete and external paving. Combine with LTP Fullers Earth to help remove cooking oil and old stains. The spot stain remover dissolves the stain and the Fullers earth absorbs it by capillary, thus enabling deep down stains to rise to the surface.