Wash material from the skin. If concerned, call Syngenta (800-888-8372), a poison control center or doctor for treament advice. If inhaled: First aid measures are not normally required. If you feel unwell or have concerns, contact Syngenta. (800-888-8372), a poison control center or doctor for treatment advice.
For a relatively smooth surface, like old paint in good condition, or primed wood, it generally takes about 1 gallon per each 400 square feet. Thus, measure the space to be painted and calculate the area in square feet. Divide the area by 400 to get the number of gallons per coat. Rough surfaces like stucco will take much more paint, and one gallon may do only 200 square feet, so use 200 sq. ft./gallon for this type surface.
Paint. Exterior paint is like vacation time: you don't want to skimp on quality or quantity. Using high-quality paint will save you money down the roadâit not only looks better, but lasts longer. And when calculating how much paint to buy, professionals recommend adding an extra 10 or 20 percent to your total square footage. It takes two coats to cover a home exterior, and one gallon of paint covers about 400 square feet. You can use this paint calculator to estimate how many gallons you'll need, but average total costs are between $360 and $840.