For reliable traditional puncture repair with rubber solution and a patch with a feathered edge:
Id the puncture and mark the centre with a bits of a cross but I dont write within the patch area.
Rough up the surface a bit larger than the patch using med sandpaper.
Wipe the tube free of contamination.
Spread very thin layer of rubber solution. Wait a few mins for it to get tacky.
I apply a 2nd thin layer.
Remove sticky side paper and roll on excluding all air. Press from middle to edge.
Crack the protective foil/plastic film in half and peel from centre to edge.
You can put some chalk onto any remaining tacky surface ( I dont).
Practicec a few times .
Use a new spare inner as 1st resort for roadside repair.
Any peeling you do from edge to centre will weaken the bond.
Id the puncture and mark the centre with a bits of a cross but I dont write within the patch area.
Rough up the surface a bit larger than the patch using med sandpaper.
Wipe the tube free of contamination.
Spread very thin layer of rubber solution. Wait a few mins for it to get tacky.
I apply a 2nd thin layer.
Remove sticky side paper and roll on excluding all air. Press from middle to edge.
Crack the protective foil/plastic film in half and peel from centre to edge.
You can put some chalk onto any remaining tacky surface ( I dont).
Practicec a few times .
Use a new spare inner as 1st resort for roadside repair.
Any peeling you do from edge to centre will weaken the bond.