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What is the best way to get longer life out of your sealer and what is a good mix design

Are you using a pre-mixed sealer or a concentrate sealer and what type? ie, coal tar, polymer-modified coal tar, emulsion-coal tar or an acrylic sealer?
Most coal tar sealer if purchased in bulk form and it is not pre-mixed should be mixed as follows:
100 gallons of coal tar, 30-40 gallons of water, 1-2 gallons of a polymer additive(hardener) and on average at least 300lbs of sand with a 40-70 mesh AFS. Mixed at this rate, you should get at least 2 years out of the sealer. Keep in mind that several factors could reduce or lengthen the life of the sealer. Some of the factors include: traffic, snow plowing, application rate, etc.

I’m using a concentrate coal tar from vance brothers 550 gal. Hydraulic mixer. Coal tar 350 gal 600 lbs of sand gal 5 gal pail of tarmac additive 150 gal of water. What do you thank.

I’m using a concentrate coal tar from vance brothers 550 gal. Hydraulic mixer. Coal tar 350 gal 600 lbs of sand gal gal pail of tarmac additive 150 gal of water what do you thank.