Butyl rubber is recommended for use because it cleans up easily with water. Oil base caulks are among the more costly sealants. A caulking gun is not useful when wanting a neat and exact bead. It is better to skimp on sealants than use too much. Areas that should not be caulked are concrete parts and sole plates.
Sealants work best when applied after construction.
Latex sealants may be sanded and painted. Allow students an opportunity to work with each type of sealant. Have dissimilar materials available. Calculate the cost of a job using different types of sealants. Water Resistance 7.