PCB Etch Powder 100g Etchant

Sodium Persulphate 100g will make 500ml of solution Excellent stability WARNING Sodiium Persulphate solution is extremely corrosive and direct skin contact MUST be avoided. Correct disposal should also be observed in line with local authority guidelines This sodium persulphate based etch powder has been specifically developed for etching copper laminate used in the electronics industry. The product exhibits excellent stability in use leaving surfaces clean even and free of staining. 100g will make 0.5 litres of etch solution. 0.5 litres of water is heated to between 40 to 50anddegC and the powder is slowly stirred into the water. The solution should last between 4 to 8 weeks but is dependent upon the volume of copper in solution. N.B To prevent premature breakdown of the solution do not operate in excess of 50anddegC. Supplied in 100g sachets.