Thanks for the detailed feedback- we've reached out via email as we want to make sure your coverage is right before you head bush.
A 110 Defender typically needs the full 4L for doors, bonnet and tailgate, and it's key to the protective qualities that NarrowTrax reaches the minimum thickness of 2 coats at 125µm each (250 µm). This thickness is required to ensure peel-ability and suitable protective qualities. We include a Wet Film Thickness gauge in every pack to check this when you’re applying.
Our full application video and coverage guide are on our website and packaging for anyone doing their first application- first timers do take longer and that's completely normal. Looking forward to hearing how it performs!