Can waterproof fabrics be steam ironed?

Waterproof fabrics can be steam ironed. Except for down jackets, three-proof fabrics refer to ordinary fabrics that have been treated to have excellent waterproof functions, oil-proof fabrics, and anti-fouling functions, commonly known as three-proof fabrics. After the fabric is treated with three-proof finishing, the surface properties of the fabric are changed, turning the hydrophilicity into hydrophobicity. Water droplets can roll on the fabric but cannot wet it.
Waterproof and moisture-permeable fabrics are two important properties that are opposite but closely related to the wearing performance.