Boric Acid Powder 1kg Mix into a paste with water or methylated spirit then coat your solder join to help to prevent firestain.
This item will have to be sent via UK Mail Hazardous Materials & Liquids Only
This item will have to be sent via UK Mail Hazardous Materials and Liquids Only. Please note we are unable to deliver liquid and hazard goods abroad. Please contact your relevant country supplier.
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