Seno gs etching system mega electronics 600 017 p this seno etch in the bag from mega electronics is a superb kit sufficient for at least twelve 100 x 160mm eurocards the kit features a sealed system which protects user from dangers and mess associated with common etchants and includes a sealable etching sleeve etch chemicals in pellet form leakproof storage box and neutraliser p p the kit allows a constant visual check to be maintained on the rate of etching which can be accelerated