Skin contact

• Sodium silicate is caustic in powered form, but in solution it is a powerful irritant. Intense solution of sodium silicate can cause severe burns on skin, depending on the extent of exposure.
  
  

Inhalation

• Liquid sodium silicate, a strong alkaline irritant, can inflict serious damage on the mucous membrane and upper respiratory tract if inhaled. Intentional or unintentional ingestion of sodium silicate solution could cause coughing, vomiting, nausea and headaches.
  
  

Eye contact

• Sodium silicate can damage vision the same way a harmful caustic does. The tissues of the eyes are disrupted by severe irritation and inflammation, producing tears and considerable pain.
  
  

Aggravation of pre-existing conditions

• People who have pre-existent skin disorders or defective respiratory systems are vulnerable to the harmful effects of sodium silicate.
  
  

Exfoliative dermatitis

• According to the Journal of the American Medical Informatics Association, "Chronic sodium silicate exposure can lead to severe exfoliative dermatitis."