UniBond No More Nails Mounting Tape Roll permanent double-sided mounting tape is suitable for both indoor and outdoor uses. You can use it to mount mirrors, pictures, frames, signs, hooks, bathroom fixtures, kitchen fixtures, mailboxes, house numbers. Apply on clean, dry, smooth and sound surfaces which are free from dust, oil, grease and polish. For best results clean surfaces with methylated spirit. Sound surfaces means substrate must be strong enough to support weight of items held. Cut the length needed. Apply vertical strips every 15-30cm as shown in illustration, depending on the item's weight. Press down firmly. Remove the blue liner. Apply your item to the surface and press down firmly for a few seconds. Avoid application under 10oc to maintain initial grab strength. Maximum adhesion is reached after 24 hours. Support heavier items for the period. Direct water can reduce holding power. The item cannot be corrected after pressing down.