Driveway sealer types in Edmonton, and what is inside
Two quotes for the same drive can differ because one is a single thin coat of a heavily thinned product and the other is not. The drum matters, and almost nobody asks about it.
The sealers used on Edmonton asphalt and how they differ
Asphalt emulsion sealers are water-based and the common choice on residential work. They are lower odour, they cure quickly in warm weather, and they wear at a rate that suits a drive carrying a couple of cars.
Coal tar products were long the heavy-duty option and are restricted or banned in a growing number of places on environmental grounds. Where they are still permitted they are mainly a commercial choice, and availability is worth checking locally.
Acrylic and polymer-modified products sit above both on price and durability, and are used where appearance matters or a surface takes unusual punishment. Which one suits a residential drive and which suits a busy lot is a different question from which is better, and the price difference is real.
Mixed on site
Reading a quote
What your Edmonton sealing quote should tell you
The product, by name
Not "commercial grade sealer". A named product can be looked up, and a quote that will not name one is describing a drum rather than a specification.
The dilution rate
Most sealers are supplied concentrated and thinned before use. How much water goes in changes coverage and wear more than any other single decision.
The number of coats
One coat is normal on a sound drive in good condition. Two is for porous or heavily oxidised surfaces, and it is a different price rather than a free upgrade.
How it is applied
Squeegee, brush or spray each leave a different finish and use different quantities per square metre, so the method belongs on the quote too.
One coat or two
When your Edmonton driveway needs a second coat
A sound, recently sealed surface takes one coat and looks right. The sealer sits on a surface that is still relatively closed, so most of what is applied stays where it is put.
A surface that has gone grey and porous absorbs the first coat. The result after one pass is patchy and thin in the open-textured areas, and a second coat is what gives an even finish rather than a better one.
More than two is rarely useful. Layer thickness beyond that point cracks under its own stiffness and flakes, which is the same reason coating every year is counterproductive. If the surface is so porous it drinks two coats, check how old it is before spending, because resurfacing may be the better money.
It was traditionally more durable, but it is restricted or banned in a growing number of places on environmental grounds. Availability locally decides this more than performance arguments do.
Coverage and wear. A heavily thinned product spreads further for the same cost in material, so it is the quiet variable that makes two quotes for one drive look different.
Only if the surface is porous enough to absorb the first. On a sound drive a second coat adds cost without adding protection, and beyond two the layer starts to flake.
Squeegee works material into the surface and uses more per square metre. Spray is faster and thinner. Neither is wrong, but the method changes the result and belongs on the quote.
Yes, and it is worth doing. A named product can be looked up; "commercial grade sealer" describes a drum rather than a specification and tells you nothing you can verify.
Sometimes, but preparation affects the outcome far more than the product does. A premium sealer applied over an unscrubbed surface fails faster than a basic one put down on a properly cleaned drive.
