Sodium silicate
From PyroGuide
(Redirected from Waterglass)
Formula: Na2SiO3
Description: Sodium silicate, also known as water glass or liquid glass, available in liquid and solid (prill) form, is used for passive fire protection.
Hazards: Sodium silicate is corrosive and may cause health problems with over exposure. It is best to avoid eye and skin contact and vapour or mist inhalation.
Sources: Sodium silicate cannot be made at home. It has a wide variety of uses and can be bought from online pyrotechnic stores and ceramic supply shops. It can be bought in either liquid form or a dry powder. When dry it is mixed with water and a small amount is placed around pass fire holes and exhaust holes (see hummer).