[Product name] waterproof patch[Product material] Butyl rubber[Product specifications] 5cm*5m, 10cm*5m, 15cm*5m, 20cm*5m, 30cm*5m, 50cm*5m, 1m*5m[Construction method] One tear and one sticker, the construction is simple and easy to useScope of application: roof cracks, floor tiles, balcony corners, color steel tiles, cracks, etc.Product features: abrasion-resistant and heat-insulating, strong adhesion, simple constructionMatters needing attention: during construction, the ground should be kept dry and pressed tightly without air bubbles. It is not suitable for pipelines with water pressure.Shelf life: 12 months unopened in a cool and dry placeThe product size is measured manually, the error is inevitable, it is for reference only, the actual product shall prevailcustomer serviceWe are very happy to receive an email within 24 hours.If you have any questions, please feel free to contact us.If the product is damaged or unqualified, we can send it again or refund. If you have any questions about this product, please send me an email.Let us use friendly communication to solve the problem perfectly. I wish you a happy shopping in our store.