obenauf's heavy duty lp leather conditioner natural oil beeswax formula (8oz) obenauf's industrial strength leather preservative (lp) was originally developed for protecting and waterproofing firefighters leather work boots. heavy duty lp is a leather conditioner made with our beeswax and natural oil formula. natural oils in heavy duty lp are gradually released into the fibers as a long term lubrication. heat and flexing cause oils to be released, oiling the leather when it needs it most, making this an excellent leather boot conditioner. before application, a spot test is recommended because heavy duty lp will darken your leather and nubuck. not recommended for suede. made in the usa. apply heavy duty lp to your leather work boots, saddle bags and chaps, belts, holsters, sheathes, baseball gloves, and more.