waterproof foamboard

Hello everyone! I decided to make this thread for my YouTube channel (which is almost all water rocket stuff) So that you guys can post suggestions for new videos, And I can post pics and vids that i upload My equipment: 24 L electric air compressor (9 bar max), Little key chain sky cam, And...

I am adding tape to reinforce a wing, and tested some Up&Up (Target brand) packing tape on the brown surface of the board, and it did NOT want to stick to it. Granted, it's not great packing tape to begin with, but is there a recommended brand or type of packing tape that reliably sticks well?

FTFC20 - April Showers Challenge Simple - Build a Waterproof Plane and Fly in the Rain or on a waterbody! OFFICIAL RULES: Make a Build log that contains the following: (100 pts) Plane name (10 pts) plans link (5 pts) statement of why you chose it (5 pts) stats (5 pts) build log - (40 pts)...

Anyone around here interested in buying some waterproof foamboard? We're looking for someone to put in for 10 sheets or so ($1.80 ea is the cost including shipping) . pm me if you're interested.