ROCKCOTE Oxides

Oxides are powdered pigments made from iron oxide that are used for colouring the ROCKCOTE Clay and Lime plasters that come dry (bag) form .

Recommended for use in:   

• Clay Plaster Decor
• Earthen Render Medium
• Earthen Render Coarse
• Lime Plaster
• Lime Plaster Basecoat
• Marrakesh
• Smooth Set

Colours : ROCKCOTE has developed a range of colours seen on the left, using the oxides in these products. The colours will appear slightly different on a computer screen to real life, and in fact will be slightly different in each product, so it is best to use the pictures of these colours as a guide only.

The  table below gives the oxide name and proportion to get these colours. However the colours are suggestions only. They can be used as is, or as a guide to develop your own colours. 

NOTE 1: When tinting product the maximum oxide which should be added is 40g per kilogram of product.  If a higher proportion of oxides is added it will change the composition of the product and affect the finish.

NOTE 2 : As these renders and oxides are natural products there can be slight colour variations so it is advisable to use products and oxides from a similar batch to achieve colour consistency for a project. 

Procedure for use : the steps below are recommended to reduce the likelihood of oxide bursts occurring in the finish

1. Soak the oxide in water overnight.
2. Mix the soaked oxide with the rest of the water required for the product.
3. Slowly add the product to the water, mix it in slowly. This should take at least 10-15 minutes.
4. Leave the mixed product to sit for 20 minutes.
5. Stir the product well for a further 10-15 minutes.
6. More mixing may be required depending on the product.

Size and Appearance : these are 1Kg bags of finely powdered dry oxide. You will require your own scales to weight them for a project. 

Technical Data Sheets : See full Technical Data Sheet for Oxides and Tinting 

ROCKCOTE Colours formulas