What is Terra Alba?

Terra alba, also known as calcium sulfate dihydrate, is a natural gypsum that has been finely ground and air-separated to produce a high purity product. This Italian-sourced material contains about 20% water of crystallization, which is released as it is heated above 50°C. By 180°C, 75% of the combined water has been released, and it is not completely removed until temperatures exceed 400°C.

Properties of Terra Alba

Terra alba has a specific gravity of 2.32 and a Mohs hardness of 2-3. It has a loose bulk density of 42 lbs/ft³ and a packed bulk density of 62 lbs/ft³. The pH of a 10% slurry is 7.3, and it has a refractive index of 1.52. Terra alba also has an oil absorption of 23-25 g oil/100 g pigment and a median particle size of 12.0 microns, with the largest particle size being 150 microns.

Applications of Terra Alba

Terra alba is an ideal extender in paint and filler in grounds due to its high purity and precise properties. It can also function as a flame retarding filler at room temperature, making it suitable for various art and craft applications. Whether you're a professional artist or a hobbyist, terra alba is a reliable choice for achieving consistent results.

Why Choose Rublev Colours Terra Alba?

Rublev Colours is a renowned brand in the art supplies industry, and their terra alba is no exception. With its high purity and precise properties, this product is ideal for artists and crafters who demand the best. By choosing Rublev Colours terra alba, you can be sure of consistent results and high-quality finishes.

Buy Terra Alba Online Today

Looking to buy terra alba online? Look no further! Our online storefront offers high purity terra alba from Rublev Colours, ready to ship to your doorstep. Browse our selection today and discover the benefits of this versatile material for yourself.