What is the difference between water-based sealant and oil-based sealant?

Firstly, they have different solvents, the main solvent of water-based sealant is water, and acrylic. However, the main solvent of oil-based sealant is toluene and acrylic. 

Secondly, the environmental performance of oil-based sealant is more prominent than the  water-based sealant, because they used different solvents, the poor water-based solvent will cause pollution to the environment, while the oil-based sealant solvent is more healthy and environmentally friendly.

The third difference is that the price of oil-based sealant is slightly more expensive.