Match your connecting joints exactly to industry-standard RAL numbers


Here you'll find a vast selection of RAL coloured mastic sealants in a range of different sealant products to suit all kinds of applications both internal and external. Dating back to 1927 the German Reichs-Ausschuß für Lieferbedingungen und Gütesicherung (Imperial Commission for Delivery Terms and Quality Assurance) invented a collection of forty colours under the name of “RAL 840”. The numbers then evolved to uniformly 4 digits with tints constantly added to the collection. in the 2020's the RAL number system is one of the most commonly used colour reference in UK ...
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