Sodium Silicate

Sodium Silicate 140Tw
Sodium Silicate 140Tw Sodium Silicate 75Tw Sodium silicate 140Tw 500ml Sodium silicate 140Tw IL Sodium silicate 140Tw 5L Sodium silicate 75Tw 500ml Sodium silicate 75Tw 1L Sodium silicate 75Tw 5L
Sodium silicate, also known as waterglass is available as a high viscocity and density 140Tw (~54% concentration) and low viscocity and density 75Tw (~36% concentration).

Buy Sodium Silicate

75Tw (Low viscocity)

Volume Cost Quantity
500ml £4.99
1 litre £8.99
5 litre £29.99

140Tw (High viscocity)

Volume Cost Quantity
500ml £7.80
1 litre £11.99
5 litre £39.50


Sodium Silicate, also called waterglass, has a very wide range of applicaitons, including an adhesive or binder, especially in high temperature environemnts, it is a major component of most exhaust repair puttys.

Treating cardboard tubes – Sodium silicate can be used with calcium chloride to treat cardboard mortars using the method in this link.

Preserving eggs – Sodium silicate (waterglass) solutions are used to preserve fresh eggs by sealing the pores in the shell, keeping bacteria out and water in. Water glass should be diluted to 10% concentration (1 litre of 75Tw will make up 3.6 litres of 10% solution). Half fill the container with the 10% waterglass and then add eggs. 3.6 litres of 10% solution will be enough to preserve about 200 eggs.

Wart removal on cattle – 140Tw Sodium silicate (waterglass) is used for wart treatment on livestock.


Type 75Tw 140Tw
Concentration 35 - 37% 52.5 - 54.5%
Density (sg) 1.36 (+/- 0.015) 1.686 (+/- 0.015)
Twaddle 75 140
Viscocity (Centipoise) 100 90,000
Viscocity (Similar to) SAE 10 Motor Oil Mustard
Formula Na2O(SiO2)3.0 Na2O(SiO2)2.05

(Typical values)



Irritating to the skin. Risk of serious damage to eyes.
Keep out of reach of children. In case of contact with eyes rinse immediately with plenty of water and seek medical advice. Wear suitable gloves. Wear eye and face protection.


Sodium Silicate 75Tw MSDS

Sodium Silicate 140Tw MSDS

Sodium Silicate MSDS

Product Identifiers

500ml 140Tw (High viscocity): 0029882792629, 1 litre 140Tw (High viscocity): 0029882792636, 500ml 75Tw (Low viscocity): 0029882796481, 1 litre 75Tw (Low viscocity): 0029882796498, 5 litre 75Tw (Low viscocity): 0029882796665, 5 litre 140Tw (High viscocity): 0029882797211,
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