Carbusonic EP26R Ultrasonic cleaning fluid extra concentrate 1 litre size. 1 dose 25ml to 500ml Hot water 45-65 Degrees, 15 minutes cycles rinse well after cleaning buff as usual. Developed with a blend of safe Surfactant technology and buffering agents to cavitate more sonic bubbles to impact debris embedded in jewellery items, safe on plastic, great for automotive cleaning. Compatible with all Ultrasonic cleaning tanks supplied in handy dosing bottle. Not recommended for Opals or cheap stones.