RE: Need tips - may be sealing hinge gaps for the first time
As mentioned the Blenderm tape will lift if exhaust residue gets under it. Also it does not look very good. I'm an ARF guy and my first fix with covering was a Sig 4* and I found the covering very easy to use. Not sure what brand it is. I bought the SIG clear covering and found it easy to use, even on the small surfaces of an EF outlaw. 1/4" wide strips but it worked out okay. No need to do the entire length with one piece, until you get good at it. If you do only one side(especially the bottom) with tape you will find dirt sticks to the tape, even covering gets dirt into the fold and it is sometimes hard to get out. I would suggest doing both sides with covering. Good luck.