Rust Proof Galvanised Stitching Wire commonly referred to as RP Wire is also made out of Mild Steel Wire and is plated with more amount of zinc which gives it better coating than regular G.I. Wire. This wire is costlier than the regular one but it fights more against the rusting problem as compared to regular G.I. Wire.

Advantages

Fights more against rusting problems as compared to regular G.I. Stitching wire
Economical as compared to Power, Pure Brass & Pure Copper Wires