What coat weight is required to achieve desired barrier properties?
Coat weight requirements will vary depending on the base sheet quality and properties desired. Moisture repellency on glassine paper can be achieved with as little as 0.2 dry lbs/msf coat weight, while liner board requires up to 2-3 dry lbs/msf to achieve low MVTR and grease barrier properties. Improved properties can be achieved when PWR products are coated over clay or sized surfaces.
