| Titre : |
How to avoid problems of exudation and efflorescence in semi-flexible exterior masonry coatings |
| Type de document : |
texte imprimé |
| Auteurs : |
Maurille Secher, Auteur ; E. Bousseau, Auteur ; Christophe Baude, Auteur ; Jean-Marie Schmuck, Auteur |
| Année de publication : |
2015 |
| Article en page(s) : |
p. 16-19 |
| Note générale : |
L'article, amputé de sa fin est à la page 17 du Double liaison N° 607 d'octobre 2015 |
| Langues : |
Français (fre) |
| Catégories : |
Liants
Maçonnerie
Résistance à l'efflorescence
Résistance à l'exsudation
Revêtement mural:Peinture murale
Revêtements -- Défauts:Peinture -- Défauts
Revêtements en bâtiment:Peinture en bâtiment
|
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
The trend for more colourful façades, coupled with the growth of point-of-sale tinting, bas led to increasing issues for paint manufacturers in terms of surfactant leaching or exudation, especially with higher-build, semi-flexible coatings that are naturally binder-rich, due to the high levels of surfactants present in medium and deep tone paints.
OMNOVA Solutions has developed an innovative solution for formulation of masonry coatings with excellent resistance to exudation and efflorescence. This new environmentally friendly binder incorporates technology that minimises the amount of water soluble materials that can leach from the coating, and so significantly reduces the possibility of unattractive surface staining occurring under certain unfavourable drying conditions.
Additionally, the Low Exudation Binder bas all the advantages of current best-in-class resins for masonry coatings, and has built-in flexibility that gives it more versatility in terms of application, extending its use to formulation of semi-flexible coatings, where crack-bridging ability is a requirement. |
| Note de contenu : |
- INTRODUCTION : Surfactants in coatings - Problems associated with 'free' surfactants (a. exudation, b. efflorescence)
- POLYMER DESIGN CONSIDERATIONS : Exudation & efflorescence - Durability & crack-bridging
- MAIN APPLICATIONS OF NEW LEB TECHNOLOGY : High build coatings : definition and experimental formulation - Paint properties : benchmarking vs. commercial references |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24481 |
in DOUBLE LIAISON > N° 606 (09/2015) . - p. 16-19
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