Oxide allows for the contractor to control the dose and therefore the depth of colour. 

The black oxide lightens slightly over the first 5 days as the cement cures. 

Ensure your ratio percentage is based on the cement content only, as oxide will not colour sand or stone. 

For best results, follow the instructions on the Oxide pack carefully.

Always accurately measure all ingredients, including water; and for multiple mixes, always use the same quantities. 

For lighter, deeper colours use either White or Off White Cement or Render. 

Black, brown and red work best in Grey Cement. 

Sand can also affect colour, so source enough sand in one purchase to complete your project. 

The maximum colour saturation you can achieve is 10% oxide addition of the cement content. Therefore you can avoid wastage and weakening of your mix by not overdosing on oxide.