Whereas adhesives are used for bonding, and caulks simply plug holes and can shrink or crack, sealants provide more durable performance. Sealants and caulks are generally based on silicones, polyurethanes, or modified silicones or urethanes. Solvent, acrylic and latex based caulks are also available to the construction industry.
Sealant choice depends on the substrate as well as performance requirements. Builders should choose a higher-end sealant to reduce or eliminate call-backs. For builders, understanding sealants includes understanding that similar-seeming sealants may have been developed for different applications. For example, many builders rely on less durable acetoxy silicones that do not always adhere properly to substrates, while oxime cure silicone that adheres to a greater range of substrates is available.
Educating builders in sealant chemistries is important too, and the construction industry can expect to see high VOC chemistries that they may have been accustomed to using being replaced by greener options with higher performance.
A great resource for educating your workforce on sealants can be found in the OnDemand and Live Webinars located HERE
Also, great resources for the building & construction industry are available HERE as well.