Chromatic Alginate (Smart Material)

Product Code : SCL-CLE-12748

Quick Answer: The Chromatic Alginate (Smart Material) is a seaweed-based white powder that turns purple when mixed with water and then changes colour to show when it is ready for moulding, setting into a flexible mould within minutes.

Last updated: October 2026

Key Features

• Made from seaweed
• Fine white powder mixed with water
• Turns purple, then changes colour to show readiness for moulding and setting
• Sets into a flexible mould in minutes
• Moulds can take plaster, plastics and low temperature metals such as Field's metal
• Pack size 450 g

About This Product

Alginate of this kind is used in dentistry to make moulds and for making casts of body parts such as hands and feet. In the classroom, the colour changes show each stage from mixing to readiness for moulding and setting, and the finished mould can be filled with plaster, plastics or a low temperature metal such as Field's metal. The Chromatic Alginate (Smart Material) can be exported to customers in Japan, Venezuela, the Central African Republic and Uganda.

Frequently Asked Questions

How does the alginate show it is ready?

After mixing with water it turns purple and then changes colour to indicate it is ready for moulding around a pattern, and then setting.

What can be cast in the mould?

The flexible mould can take plaster, plastics and low temperature metals such as Field's metal.

Related: Chemistry Lab Equipment, Field's Metal (Smart Material), Mixed Smart Materials Collection.

For a quotation on the Chromatic Alginate (Smart Material), contact School Lab China.