Despite that I stuck to the guide and the film have thoroughly ironed and allow to cool, the film sparked some places and the latest when turning. So I sewed for example a toilet bag and coated with Lamifix above the lining (pure cotton fabric). When turning the bag then took place the release of the film. In addition, the film crackles with a vengeance after ironing and worked with film material is not comparable to the thin oilcloth materials that naturally have their price. For me it was a bad buy.