5. No liens shall attach nor shall a lien claim be filed:
a. For materials that have been furnished or delivered subject to a security agreement which has been entered into pursuant to Chapter 9 of Title 12A of the New Jersey Statutes (N.J.S.12A:9-101 et seq.);
b. For public works or improvements to real property contracted for and awarded by a public entity; provided, however, that nothing herein shall affect any right or remedy established pursuant to the "municipal mechanic's lien law," N.J.S.2A:44-125 et seq.;
c. For work, services, material or equipment furnished pursuant to a residential construction contract unless there is strict compliance with sections 20 and 21 of this act.