Chemical and heat resistance of silicone‐acrylic‐based binder and paint system on mild steel panels
Abstract
Purpose
This paper sets out to study the characteristics of silicone‐acrylic‐based resin and paint systems on mild steel panel for chemical resistance and high‐temperature applications.
Design/methodology/approach
Silicone resin has been incorporated into acrylic resin at various compositions. The mixed resins binders and paint systems have been characterised using physical test, acceleration test, electrochemical test and microstructure observation.
Findings
The addition of silicone resin into acrylic resin showed significant improvement against high temperature. The results showed that coating film containing at least 30 per cent of silicone resin by weight was able to withstand high temperature of at least 250°C. With the addition of titanium dioxide (TiO2) pigment into the best performing silicone‐acrylic‐based resin system, the system with pigment volume concentration of 30 per cent TiO2 showed the best performance which indicated the value of critical pigment volume concentration. The finding showed blistering formed in low‐PVC systems and rusting in high‐PVC systems.
Research limitations/implications
Owing to the environmental issue, water‐based silicone‐acrylic resins should be explored to reduce the emission of harmful organic solvent. This can be done using solventless or powder coating technique.
Practical implications
Silicone‐acrylic resin coatings are a cost‐effective high‐temperature coating that have moderate resistance against corrosive environment such as marine water and also outdoor exposure with rain/sunshine cycles.
Originality/value
The studies of this resin may give useful reference to other researchers.
Keywords
Citation
Chew, K.W., Arof, A.K. and Puteh, R. (2007), "Chemical and heat resistance of silicone‐acrylic‐based binder and paint system on mild steel panels", Pigment & Resin Technology, Vol. 36 No. 5, pp. 286-292. https://doi.org/10.1108/03699420710820397
Publisher
:Emerald Group Publishing Limited
Copyright © 2007, Emerald Group Publishing Limited