I recently used pipe tape as masking for a sanding project on my kayak. The kayak manufacturer uses this tape when he installs the exterior fiberglass tape on the hull joint. This is PVC Pipe Wraping Tape that's fairly thick for tape and was told I would have to work hard a sanding through the tape. It's available in 1" or 2" widths. I found this tape availale in the yard sprinkler section at Home Depot.