Page 171 - Handbook of Adhesion Promoters

164 Selection of Adhesion Promoters for Different

8.19 POLYSULFIDE

The following adhesion promoters are suggested by their manufacturers for use with poly-
sulfides: Dynasylan MTMO, Geniosil GF 9 & 80, Silquest A-187, A-1871, A-1120, A-
2120 and Y-11542, and Xiameter OFS-6062.
Two component polysulfide sealant contains in the component A 0.1-1 wt% adhe-
1
sion promoter such as 3-glycidoxypropyltrimethoxysilane.
An adhesion promoter such as mercapto-, glycidoxysilane or organo-titanate were
used in a sealant composition based on segmented block copolymers of mercapto-func-
2
tionalized polymers and isocyanate-terminated prepolymers.
Bis-(3-[trietlioxysilyl]propyl)disulfide, bis-(3-[triethoxysilyl]propyl)polysulfide, and
proprietary polysulfide silanes are available for improvement of bonding of sealants/adhe-
sives/coatings such as moisture-curable silylated polymers on various substrates such as
3
wet or dry concrete.
REFERENCES
1 Proebster, M; Grimm, S, US6919397, Henkel-Teroson GmbH (Henkel-Teroson), Jul. 19, 2005.
2 Burkhardt, V, WO2009095739, Le Joint Francais, Aug. 6, 2009.
3 Gauthier, R; Lacroix, C, EP1940963, Momentive Performance Materials Inc., Jul. 8, 2008.