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We take great care packaging every item to ensure safe shipment to you. We charge a postage fee only to cover our costs of materials . Once your order has been processed and we have received cleared payment, your item will be dispatched as soon as possible.     All our product are shipped within one working day using royal mail second class service If you would like to use  Royal mail first class service,please contact as for exact cost.All packaging are environment-friendly and fully recyclable.     If you are not entirely happy with your purchase, contact us within 7 days of receipt of your purchase, and we will refund your money. All we ask is that you pay the outward and return delivery costs, and the item is fully packaged and unused, a surcharge will be applicable if not returned in this condition.

Sodium Persulphate                        Molecular formula-Na2S2O8 -----------------------------------------------------------------------------------------------  This is 500g of Sodium Persulphate etchant supplied in   plastic bag.Please scroll down to see how do we send our product to avoid any damage due a transport to meet best standard and great price. -------------------------------------------------------------------------------------------------                         USES                                   Used for etching printed circuit boards laminated to copper. Consumes very evenly, providing a sharp contours and minimizing Undercutting paths. Etching should be done at about 40 ° C. The optimal solution for etching plates are obtained by dissolving 100g of 0.25 to 0.5 liters of water. Caution should be taken during digestion,as it is agressive- especially for the eyes, skin and respiratory tract.                   HEALTH AND SAFETY                        WE HOLD A MSDS (MATERIAL SAFETY DATA SHEET)THIS IS AVAILABLE UPON REQUEST AS A PDF FILE,ALSO ALL OUR PRODUCTS COME WITH APPROPRIATE LABELLING.No responsibility can be accepted for any consequences of its use or misuse. --------------------------------------------------------------------------------------------------------    500g of Sodium Persulphate etchant.......                                           -----------------------------------------------------------------------------------------------------------------------------                                           and this is how we posting your item to insure it come in great condition....(product inside for ilustration purpose only)you are buying 500g of Sodium Persulphate.

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