sealers
Posted by Dick from Everson, WA, US on June 4, 2007
Can I apply a lithium based sealer to colored and acid stained concrete? I am currently constructing 16″ x16″ x3′ columns for a decorated fence and I want to protect it from all weather conditions
Thank you
Dick Dykstra
Lithium based sealers are generally applied to structures affected from alkali-silica reaction. So far, I have not heard them being used for any other kind of protection.
Try to use mineral admixtures like flyash , slag or silica fume in your concrete mixes and try to maintain a low water to cementitious ratio for your concrete with the help of a high range water reducer. Cure the concrete well after construction. This will certainly improve the durability of your columns. For additional protection you can use a silane based colorless water repellent sealer.
