Our products provide more than just superior protection for wood and concrete; they provide peace of mind that the environment is not being harmed. SEAL-ONCE products include ultra-low VOCs and low to no odor; they are non-toxic, non-flammable and non-ozone depleting. They are safe for the environment and do not contain nitrates, phosphorous compounds or heavy metals. When you use SEAL-ONCE, you have the satisfaction of knowing our products will not harm pets, plants, people, livestock or marine life.