Difference between revisions of "Silicone sealant"
Jump to navigation
Jump to search
| Line 1: | Line 1: | ||
== Description == | == Description == | ||
| − | A water-resistant, flexible adhesive ( | + | A water-resistant, flexible adhesive (caulk or sealant). Silicones contain easily hydrolyzable end groups, such as acetates, that are designed to crosslink when exposed to water vapor in the air. There are now three types of curing for these types of adhesives and sealants: |
* The acetoxy cure silicones may release [[acetic%20acid|acetic acid]] or [[methanol|methanol]] during cure. | * The acetoxy cure silicones may release [[acetic%20acid|acetic acid]] or [[methanol|methanol]] during cure. | ||
Revision as of 12:40, 3 April 2020
Description
A water-resistant, flexible adhesive (caulk or sealant). Silicones contain easily hydrolyzable end groups, such as acetates, that are designed to crosslink when exposed to water vapor in the air. There are now three types of curing for these types of adhesives and sealants:
- The acetoxy cure silicones may release Acetic acid or Methanol during cure.
- The alkoxy cure silicones may release xxxxx
- The ethoxy cure silicones may release xxx
In general, if the silicone adhesive is listed as 'neutral cure' it will not release acetic acid.
Synonyms and Related Terms
silicone mastic (Br.); adhesivo de silicona (Esp.); colle silicone (Fr.); colla siliconica (It.); adesivo de silicone (Port.)
Hazards and Safety
May
Sources Checked for Data in Record
- Irving Skeist, Handbook of Adhesives, Van Nostrand Reinhold Company, New York, 1977