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Tile Adhesive Classifications .. S1, S2, C2FT, C2TE and more.. Leave a comment

We are frequently asked about the classifications of tile adhesives, so we thought we’d put together a summary of all the common ones in the table below. The British Standards BS EN 12004:2007 governs the classifications.

In accordance with this standard, tile adhesives are determined by a combination of three factors: the adhesive’s chemistry (dispersion, cementitious, reactive resin), its level of performance (normal or improved), and any other optional features ( rapid setting, reduced slip etc).

ClassificationOptional Characteristics
D = DISPERSION

1 = NORMAL DISPERSION
2 = IMPROVED DISPERSION
F = FAST SETTING ADHESIVE

T = REDUCED SLIP
C = CEMENTITIOUS

1 = NORMAL CEMENTITIOUS
2 = IMPROVED CEMENTITIOUS

E = ADHESIVE WITH EXTENDED OPEN TIME

S = ADHESIVE WITH DEFORMABILITY
R = REACTIVE

1 = NORMAL REACTIVE RESIN
2 = IMPROVED REACTIVE RESIN

S1 = DEFORMATION > 2.5mm BUT < 5mm

S2 = DEFORMATION >5mm

These can be then further expanded into the following:

TypeClassDescription
C1NORMALCEMENTITIOUS ADHESIVE
C1FNORMALFASTSETTING CEMENTITIOUS ADHESIVE
C1TNORMAL CEMENTITIOUS ADHESIVE WITH REDUCED SLIP
C1FTNORMALFASTSETTING CEMENTITIOUS ADHESIVEWITH REDUCED SLIP
C2IMPROVED CEMENTITIOUS ADHESIVE
C2EIMPROVED CEMENTITIOUS ADHESIVE WITH EXTENDED OPEN TIME
C2FIMPROVED FASTSETTING CEMENTITIOUS ADHESIVE
C2TIMPROVED CEMENTITIOUS ADHESIVE WITH REDUCED SLIP
C2TEIMPROVED CEMENTITIOUS ADHESIVE WITH REDUCED SLIP & EXTENDED OPEN TIME
C2FTIMPROVED FAST-SETTING CEMENTITIOUS ADHESIVE WITH REDUCED SLIP
D1NORMAL DISPERSON ADHESIVE
D1TNORMALDISPERSION ADHESIVE WITH REDUCED SLIP
D2IMPROVED DISPERSION ADHESIVE
D2TIMPROVED DISPERSION ADHESIVE WITH REDUCED SLIP
D2TEIMPROVED DISPERSION ADHESIVE WITH REDUCED SLIP & EXTENDED OPEN TIME
R1NORMALREACTION RESIN ADHESIVE
R1TNORMALREACTION RESIN ADHESIVE WITH REDUCED SLIP
R2IMPROVED REACTION RESIN ADHESIVE
R2TIMPROVED REACTION RESIN ADHESIVE WITH REDUCED SLIP
C2-S1IMPROVED DEFORMABLE CEMENTITIOUS ADHESIVE
C2-S2IMPROVED HIGHLY DEFORMABLE CEMENTITIOUS ADHESIVE

View these products for popular S1 Tile Adhesives, and also the highly deformable S2 Tile Adhesives

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