First you would want to categorize concrete sealers into A. Penetrating Sealers and B. Membrane or Topical Sealers.
A. Penetrating sealer types include silicate, siliconate, siloxane, silane as well as polyester sealants and are normally water-based. Some that I mentioned chemically react with the concrete and others simply absorb and fill the concrete pores.
B. Topical sealers are either water-based or solvent based e.g. the liquid carrier of the solids. The solid content of these sealers can be acrylic, urethane, polyurethane, epoxy, silicone, polyurea and polyaspartic.
Concrete- I remember when concrete nails were made of a forged tungsten steel.
concrete was made in 1243 a.d.
yes, concrete is man made, stone is naturally ocurring.
It depends on the type of sealer used. Penetrating sealers can't be removed so we will stick with topical sealants. Some topicals like acrylic sealers might be dissolved with various chemical cleaners (assuming it water-based--solvent based sealers are much harder to remove chemically). If the sealer is starting to peal or delaminate then a cleaner and powerwasher may help lift the rest of the sealer off the surface. If you know what type of sealer was used, contact the manufacturer and get suggestions on removal.
Concrete is to bread as cement is to flour. Concrete is a mixture of sand, gravel, cement, and water.
As of 2014 there are many top rated concrete sealers on the market. Some of the best include Eagle concrete sealer, Armor SX5000 concrete sealer, and Thoro T1956 concrete sealer.
either its burnished ' burned ' by troweling til it shines OR topical sealers are applied.
There are commercially available sealers made.
In the late 1700s, soon after James Cook's reports were made known.
Concrete- I remember when concrete nails were made of a forged tungsten steel.
City Sealers are employees responsible for checking standard weights and measures of businesses.
City Sealers are employees responsible for checking standard weights and measures of businesses.
Concrete
Concrete is porous. The oil would seep out of a tank made of concrete.
George Concrete
A concrete mixture of sand, cement, and small gravel is used to make the concrete from which the tubular concrete pipe is made. The pipe is made of concrete.
because the owner wants it to be made with concrete.