Sodium Silicate

Sodium Silicate 140Tw

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

140Tw (High viscocity)

Volume	Cost	Quantity
500ml	£8.50
1 litre	£14.20

75Tw (Low viscocity)

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

Applications

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.

Specifications

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)

Safety

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.

Downloads

Sodium Silicate 140Tw 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,