A sheet of paper or mylar covering the plane table is annotated during map construction.
metallized mylar capacitor
What I like to use is that thermal blanket material called mylar.
Remove the toner cartridge from the plastic bag. Remove the mylar tape by breaking the tab on the left and pulling the tape completely out.
It can be used on paper, foil, cardboard, cloth, leather, glass, mylar, acetate sheet, foam rubber, urethane foam, styrofoam and light metal sections.