Aluminosilicate Refractory Coating vs Induction Coil Coating
Two coatings can have different substrates and duties; compare the application before comparing temperature figures.
The word coating does not make two refractory products interchangeable. An aluminosilicate coating intended for high-temperature corrosion protection serves a different purpose from a material used to protect an induction furnace coil. Their substrates, placement methods, chemistries, and acceptance checks can differ substantially.
Name the exact surface
Describe whether the coating will contact a refractory hot face, a metal component, or an induction coil assembly. Provide the operating temperature, atmosphere, corrosive species, cycling, and the condition of the existing surface. A high service-temperature value on one datasheet does not establish adhesion or protection on another substrate.
Ask for application evidence
Confirm surface preparation, permitted thickness, application method, cure, and inspection criteria. For a corrosion-protection layer, request evidence relevant to the actual attack mechanism. For coil protection, check the electrical and mechanical requirements of the furnace lining system.
Royal lists aluminosilicate coating and coil coating material separately so each can be reviewed for its intended duty.