For maximum effectiveness Earth Pro XL-Defoamer should be added directly to the fluid system as close to the point of foaming (e.g. shale shaker) as possible. It may also be sprayed over the fluid through a wash gun diluted in a mineral oil mixture if necessary (e.g. over mud tanks).
Earth Pro XL-Defoamer may cause irritation to the skin and eyes. Use rubber gloves, rubber apron, mask and eye protection when using this and other liquid mud additives.
In case of skin contact, wash with water as required. In case of eye contact, wash with water for at least fifteen minutes and seek medical attention if necessary. Although stable, do not store Earth Pro XL-Defoamer near strong oxidizing agents.