High Calcium Quicklime, 2 gallon pail.
High Calcium Quicklime, 1/8-inch to 3/4-inch pebble.
High Calcium Quicklime, 5 gallon pail.
High Calcium Quicklime, 30 gallon drum.
High Calcium Quicklime, 225 gallon super sack.
Image depicting a farmer using lime wash to paint the exterior of his farm house.
Hot mixed lime wash is easy to apply with a brush right onto a masonry surface.
Lime wash brush resting on the mixing bucket, waiting to apply hot mixed lime wash to a cellar wall.
Hot mixed lime wash can be brushed directly onto smooth or rough masonry surfaces.
Hot mixed lime wash brightens a functioning farmhouse cellar and prevents mould and mildew on the walls.
Incredibly versatile, the lime cycle shows how lime can be manipulated in its various forms to change its properties depending on its intended use.
Illustration from the US National Lime Association showing all the ways lime is used in our day-to-day lives.

High Calcium Quicklime

Item # : 1171-2G
Regular price $43.00


High calcium quicklime (Calcium Oxide) has many uses, including for making limewash and hot mortar mixes. Building lime has been used as a binder in mortars and plasters for thousands of years.

The introduction of industrial cement in the middle of the 19th century led to the decline in the use of lime, and it virtually disappeared by the mid 20th century. Later evidence emerged that cement mortars, modern plasters, and modern paints can damage the historic building fabric. This led to a revival in the use of lime in recent years, not only for conservation but also for new builds. 

Lime used as a finish

Functional and beautiful, limewash is a breathable, weather-resistant finish used on external and internal plaster and masonry surfaces. It is easily maintainable, stable, and long-lasting. It is also ideal for use in cellars and barns, where lime's high pH makes it inhospitable to microbial growth. Oxide pigments can be added for colour.


Care must be taken when adding water to quicklime (slaking). An intense heat reaction occurs that can burn skin, eyes, etc. Wear appropriate protective clothing and mix in a steel bucket as the mixture can get very hot.

Mix to a thin cream consistency. There are many recipes and much advice in historic conservation and natural building literature. Find a recipe and a method for application that suits your project needs.


Our granulated lime is a specifically-sized quicklime in 1/8-inch to 3/4-inch pebbles that is mostly dust-free.

Available in the following formats:

  • 2-gallon pail
  • 5-gallon pail
  • 30-gallon drum (Shipped on a pallet. Contact us for rates.)
  • 1 tonne super sack (Shipped on a pallet. Contact us for rates.)
  • 1.5 tonne super sack (Shipped on a pallet. Contact us for rates.)

TDS High Calcium Quicklime
SDS High Calcium Quicklime
FDS Chaux calcique vive

Chemical Facts Pertaining to Environmental Uses for Lime