Bostik Colours for Cement, For Concrete, Mortar, Render and Screeds, Available in 5 Intermixable Colours, For Interior and Exterior Use, Colour: Buff, Size: 1kg

Product Information

Mortar tints, however are slightly different in that they tend to come in concentrated liquid form that you then dilute to a point until you get a colour match. They are available in a huge range of different shades and colours and can be used to change the colour of a mortar mix to match any given existing mortar or surface. Or if you’re looking for versatile, multi-purpose additives that can do it all, we’ve got some great products including the Sealorend Waterproofer, Retarder and Plasticiser that is especially handy when working with larger areas, as well as the SBR Admixture which serves as a bonding agent, sealer, primer and waterproofer in one. If you are working with lime then you will also need to do the same, but with lime you will only be working with ratios between 3:1 (3 sand to 1 lime) and 5:1 (5 sand to 1 lime). Now, pour your sand solution gently over the top. The tights will act as a sieve, allowing the remaining water/acid solution to drain off, leaving you with just your sand.

Similar to the way in which lime can significantly lighten the colour of mortar, as you may imagine, using white cement has the same effect. As with finding an existing mix ratio, quite a bit of experimentation is needed to get a good match. If you have read through all of the above information you should be fairly well versed in what’s involved in colour matching mortar and also be wise to the fact that it can be quite a long drawn out affair, but if you want the best finish, then sometimes you’ve just got to be prepared to work for it. In short, yes, the colour of the cement that used in a mortar mix does have an effect on its overall colour. Your property may have been built from a local sand or it may have been imported by a developer who got a great deal from a quarry further afield.This may take a day or so but you will need to be patient as each one needs to be fully dried to get an exact colour. After you have created each mix, take a sample and place it on a scrap piece of wood. Do this for each mix until you have a long line of samples. Label each mix e.g. 3:1, 4:1 etc. so you know which is which and then leave them to fully dry.

Now that we have established the probable types of sand and cement or lime that was used for the original mortar mix, all that remains is to match the correct cement content. If you have gotten to this point, done a vast array of test mixes, tried every dye, tone and tint you can find and still cannot get a match there is yet still more hope! Essentially, this is down to the colour and type of sand that’s used. There are many types of sand and each type will produce a different colour mortar when mixed with cement.

Now pour some clean, fresh water into both the containers. This will help to dilute the remaining acid in both, making it weaker and less hazardous. Put a lid on the container with your waste acid and put this to one side for now. Step 6 – Drain off Sand Solution