The guidelines given below are offered by the manufacturer as suggestions only to assist in stain removal. Naturally each situation requires special care and consideration. The manufacturer cannot take responsibility for the application of these procedures and warns that careful attention MUST be given at all times to safe practices when using chemicals. You are advised that all applications of chemicals require the wearing of gloves, highly ventilated conditions and care to avoid any eye or skin contact, inhalation or ingestion. Should any contact, inhalation or ingestion occur, seek immediate medical attention.
White stains are probably salts drawn from concrete or cementitious substrates.
It is essential that stains be identified and removed while fresh . After employing a stain remover, make sure that the area is washed down with clean water, carefully shielding all areas in the vicinity of the stain from contact with stain removal materials. After reacting, the poultice is removed for disposal. By application of an active agent which converts the stain into a form which is no longer visible. Here is a list of the most common causes of staining and some suggestions for treatment.