Investigation of Titanium Dioxide Reinforcement on Thermal Performance of Siloxane Epoxy Based Intumescent Fire-Retardant Coating Systems

This report focusses mainly on the effectiveness of titanium dioxide reinforcement on
thermal performance of siloxane epoxy based intumescent fire-retardant coating systems in
providing passive fire proofing to steel substrates. Steel structures has the tendency to loss their
load carrying abilities when the temperature of surrounding reach 500oC. This intumescent
coating will help to shield the heat so that the steel structures do not collapse in case of fire
emergency. In this project, mixtures consisting of melamine, boric acid, expandable graphite
(EG), ammonium poly phosphate (APP) siloxane epoxy resin and ACR Hardener H-2310
polyamide amine were used to form the intumescent coating. A total of seven (7) formulations
were developed to investigate the effects of Titanium Dioxide reinforcement on the
intumescent coating. To study the formulation heat shielding and expansion of the char, furnace
test was conducted. Fire test was carried out to analyses the temperature of coated steel
substrate when directed to heat.