Prior to 2003, several separate British Standards existed to
provide use and application guidance for a range of sealant
products. As independent publications these are now largely
superseded, their content rationalised and incorporated into the
current standard, BS EN ISO 11600: Building construction. Jointing
products. Classification and requirements for sealants.This International Standard covers, materials application to
jointing, classification of materials, quality grading and
performance testing. This enables specific definition of a sealant's
requirements in terms of end use without having to understand the
chemical properties of the various sealant types. Typical criteria
are, movement potential, elasticity and hardness when related to
particular substrate surfaces such as aluminium, glass or masonry.Grading summary ~BS EN ISO 11600 G, for use in glazing.
BS EN ISO 11600 F, for fac ̧ade and similar applications such as
movement joints.Other suffixes or sub-classes ~E = elastic sealant, ie. high elastic recovery or elastomeric.
P = plastic sealant, ie. low elastic recovery.
HM = high modulus, indicates hardness.*
LM = low modulus, indicates softness.*
*By definition HM and LM are high movement (20†25%) types of
elastic sealants, therefore the suffix E is not shown with these.Associated standards ~
BS EN 26927: Building construction. Jointing products. Sealants.
Vocabulary.
BS 6213: Selection of construction sealants. Guide.
BS 6093: Design of joints and jointing in building construction.
Guide.Sealants--Classification and Specification