Section 6. There shall be no liability on the part of, and no cause of action of any nature shall arise against insurance companies,, the association, or agents or employees thereof, or insurance agents or brokers using the, plan or association, or the commissioner or his authorized representatives, for any inspections undertaken, acts or omissions in connection therewith or statements made in any reports and communications concerning the insurability of the property, or at the time of any hearings conducted in connection therewith, or in the findings required by the provisions of this chapter. The reports and communications of the association shall not be considered public records.