Our glass wool products are made from superfine glass melt with addition of phenol resin cementing agent forming shapes through solidification under pressure and heating.The surface may be coated with metal mesh (single side,double sides),fiber glass cloth (single side,double sides,six sides),fiberglass blanket (single side,double sides),or aluminum foil(single side,double sides),It is bright yellow in colour,and no-injurant to human body.