A non-hazardous to ship, mildly acidic cleaner designed for investment removal that can be used at room temperature or heated up to 160°F in an ultrasonic cleaner (in an auxiliary pan/beaker) for accelerated results (ultrasonic and auxllary pan/beaker is not included). Use full strength as a dip or when heating, dilute 2:1 for a 50% solution. Do not use at full strength but always dilute whenever heating. Remains effective down to approximately 33%. Does not emit fumes, rinses clean with tap water and since it's environmentally friendly, can be disposed of down the drain. Weighs 9.75 lbs. (4.43 kg). Sold in 1-gallon bottles. Made in the USA.