This fluid has been specially formulated for adding to ultrasonic baths for cleaning carburettors & machine parts. It will safely remove contaminants like grease and carbon without damaging or Do not leave aluminium in solution for longer than a few hours, can cause darkening of the surface when mixed with other metals. For most effective cleaning, temperature Should be 50-80°C. Scottish Islands: All postcodes containing KW / HS1-HS9 / IV41-IV49 / IV51 / IV55-IV56 / KA27-KA28 / PA20-PA80 / PH4-PH50 / ZE1-ZE3. Scottish Highlands: All postcodes containing AB and IV / KW1-KW14 / PA21-PA38 / PA80 / PH16-PH26 / PH30-PH41 / PH49-PH50. Scotland All Post Codes Containing CA, DG, EH, FK, G, KA, KY, ML, LA9,12,14,15,18,20, LL35+, PA, TD, AB, DD, IV, KW, PH. Please Contact us For A Postal Quote PRIOR.