Our traditional waxed cotton sash cord has a polyester core to add additional strength for hanging weights. Traditional cord Polyester core for additional strength Available in 100m coils or 15m knots High wax coated It is supplied in three diameters. 6mm diameter = 30kg/66lb max sash weight 7mm diameter = 40kg/88lb max sash weight 8mm diameter = 50kg/110lb max sash weight
