A MEDICFX repair kit or repair gun.
Sticky Tape 4cm wide
Sewing pins with head
Clean the appliance with hot water and wipe the tear/cut down with alcohol.
Spread the appliance out on a flat surface. For a sleeve wrap it around a plastic bottle.
Place the sticky tape under the tear/ cut with the sticky side up.
Mix the silicone as instructed or use the repair gun.
Spread the silicone inside the tear/ cut.
Push the sides together and use pins to keep it closed.
Leave for 1 hour or sped up time with a hot hairdryer.
Repeat if there still are holes or dents in the line.
For a more sturdy repair where the appliance needs to be stretched you can add a strip of mesh in the silicone at the back of the appliance