Phenolic Resin Powder & Liquid: Foundry, Refractory & Friction Materials
Phenolic Resin Powder & Liquid: Foundry, Refractory & Friction Materials constitutes a broad thermosetting binder class in which the powder and liquid grades are distinguished at the reactor by catalyst selection and the phenol-to-formaldehyde molar ratio. Acid-catalyzed novolac is produced at molar ratios of 1:0.75 to 1:0.85 and remains permanently...