The Effect of Particle Size of Wollastonite Filler on Thermal Performance of Intumescent Fire Retardant CoatingM. Zia-ul-Mustafa, Faiz Ahmad, Puteri S.M. Megat-Yusoff and Hammaz AzizMATEC Web of Conferences, 13 (2014) 03012DOI: https://doi.org/10.1051/matecconf/20141303012