Our Weatherproof Thermal Transfer (TW) material has BOPP film facestock, but not our Weatherproof White Matte (JW) material. While our Weatherproof White Matte (JW) material is rated for resistance against liquids and moisture, it is not rated for resistance against oils. For this, we recommend using an application of Krylon's Weatherproof/Waterproof overcoat spray. This is a clear acrylic spray that seals the material from oils and could work well in your application. For more information on Krylon's Weatherproof/Waterproof overcoat spray, please read the help article below. https://www.onlinelabels.com/articles/krylon-weatherproof-waterproof-label-overcoat-spray.htm If you would like to request sample labels of the JW or TW material for testing, feel free to use our sample request form. https://www.onlinelabels.com/samples