US 11,865,579 B2
Hybrid coating process
Deirdre Anne Brockwell, Libertyville, IL (US); Wanwisa Davis, Westmont, IL (US); and Adam Warren Keller, Grayslake, IL (US)
Assigned to USG INTERIORS, LLC, Chicago, IL (US)
Filed by USG INTERIORS, LLC, Chicago, IL (US)
Filed on Mar. 19, 2021, as Appl. No. 17/249,981.
Prior Publication US 2022/0297156 A1, Sep. 22, 2022
Int. Cl. B05D 7/00 (2006.01); B05D 1/02 (2006.01); B05D 1/30 (2006.01)
CPC B05D 7/546 (2013.01) [B05D 1/02 (2013.01); B05D 1/305 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method of coating a fibrous panel, comprising:
providing a fibrous panel including a basemat having a backing side and a facing side, and a porous veil laminated to the facing side of the basemat;
applying a prime coat onto the porous veil by curtain coating; and
applying a finish coat over the prime coat by spray coating,
wherein the porous veil is a high airflow porous veil having a rate of airflow passing perpendicularly there through in a range of about 3000 to about 4000 liters of air per square meter of sample per second (l/m2/s) and is substantially free of brighteners and fillers.