Material: TPU thermoplastic elastomers and therefore rubber elastic properties. Application: simply remove the backing paper and stick over the damaged area. The self-adhesive patch does not require additional glue. To increase adhesion, it is recommended to iron the sticker (with level 2) for a few seconds. Immediate use during a tour is also possible. For applications for materials that are subsequently used in water, we recommend a waiting time of at least 4 hours. These repair stickers have been used outdoors for many years. This TPU repair sticker is an excellent patch for the following areas: wetsuit, diving suit, rubber boots, bicycle tube, poncho, rain jacket, tent, awning, swimming pool film, dinghy, air mattress and much more. The TPU stickers are elastic and therefore fit very well to the repaired material. The following materials can therefore be repaired very well: neoprene vinyl rubber leather PU etc. Advantages of TPU: higher resistance significantly better flexibility, environmentally friendly, odourless, non-porous - even after many years of use, neutral material, is also used in food processing, extremely resistant, very good tear resistance, high abrasion resistance, excellent behaviour even in extremely cold environments. In the sun the material bleaches the material not off. The sticker can be used both in winter and summer. The patch will not become porous even after many years of use. On your outdoor tours, taking the stickers with you is a possible great supporter and savior. The stickers are made with a non-toxic industrial adhesive. (Of course, in compliance with EU and US standards, RoHS certified (Directive for the restriction of the use of certain hazardous substances). You can cut these stickers as you like.