Ullah, S. and Ahmad, F. and Al-Sehemi, A.G. and Assiri, M.A. and Raza, M.R. and Irfan, A.  (2021) Effect of expandable graphite and ammonium polyphosphate on the thermal degradation and weathering of intumescent fire-retardant coating.  Journal of Applied Polymer Science, 138 (17).   ISSN 00218995