Question 1

1. What is hydrated lime?

Accepted Answer

Hydrated lime, or calcium hydroxide, is a fine, dry powder made by adding water to quicklime. It can also come as a paste called lime putty.

Question 2

2. What’s hydrated lime used for?

Accepted Answer

In construction, hydrated lime can be added to mortar to make it more workable, durable and water resistant. It can also be added to plaster or render to make it stronger, more adhesive and more water resistant.

Question 3

3. What’s the difference between hydraulic and hydrated lime?

Accepted Answer

Hydraulic and hydrated lime are two different products with different uses in construction. Broadly, hydraulic lime is used for restoration and repair on historic buildings – it allows building movement and breathability from the masonry. Hydrated lime is a more common product that’s added to cement, plaster and render to improve their properties (see above).

Lime

Blue Circle Hydralime Hydrated Lime 25kg

Blue Circle Ready To Use Mortar 20kg

Hanson Hydrated Lime 25kg

Hanson Hydraulic Lime NHL 3.5 White 25kg Bag

Rugby Hydrated Lime 25kg

Hanson Hydrated Lime Paper Handy Bag 25kg

Tarmac Limelite Natural Hydraulic Lime NHL 3.5, 25 KG

Breedon Hydrated Lime 25kg