Free delivery brown de icing rock salt without messy grit or sand supplied in small bags approx 20kg and stacked on pallets our de icing salt is natural brown rock salt which will naturally disperse over time unlike some salt substitutes it contains only a very small amount of anti caking agent to allow prolonged storage our path salt complies with british standard bs32472011 and is approximately 6mm in size ideal for use in manual and mechanical spreaders cost saving idea why not