Dow and Nubiola Join Forces to Develop Long Term Stable Blue Cementitious Formulations Case Study: Range of Stable Blue Colour Formulations for Mortars alkalinity and until now, pigment choices have been limited to Cobalt Blue and Ultramarine Blue – both of which are sensitive materials and exhibit inherent shortcomings such as colour fading, an inability to obscure the background of a contrasting colour and high price. Ultramarine Blue is notoriously unstable, which can be linked to the formulation choice and the setting of the mortar where system conditions and chemical reactions during the cement hydration process can be most aggressive. Background The market for coloured cement and mortar based products is diverse and continues to grow in popularity, which is due i

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