We have compiled several sealcoating and crack filling related calculators here to help you with your estimations.
This information may not apply to all Sealcoaters, depending on their level of expertise and experience. We are providing this information primarily to the novice.
A basic rule to follow when determining how much sealcoat you need is to figure 1 gallon per 100' square feet of pavement, if the pavement has been sealed before. However, it might take 1.5 gallons if the asphalt has never been sealed. This is assuming your sealcoat is diluted at 30%
Recommended Sand Amounts:
For normal application - 2 to 2.5 lbs. per gallon of undiluted sealer.
For rougher pavements, sand loading of 4 to 4.5 lbs. per gallon of undiluted sealer may be necessary to accomplish proper texturing and filling of fine cracks.
Sand should Be clean, water-washed, pure silica type, with irregular particle shape, free of contaminants, metals, clay, trash and organic matter.