It is recommended to purchase a high-temperature cotton curing agent to apply. Using a curing agent can reduce volatilization and extend the service life of the high-temperature cotton. You can buy refractory cement or curing agent that can withstand more than 2700℉. If you do not purchase a curing agent, it will not affect the function of the furnace. You can also feel more at ease wearing a mask when using it.
By vevor