Ground can be thinned with naphtha if it ever becomes thick, keep can capped at all times when not in use. Shake well before each use.
Quarts are non-hazardous. Gallons can be shipped by UPS Ground Service. Gallons can be sold individually or up to four gallons in one box, the hazard fee is the same price of $35.00 whether you purchase one gallon or up to four.