External Areas of Tank of a leading Malaysian oil company Project: External Areas Of Tank # 67 Location: Miri Crude Oil Terminal (MCOT), Miri, Sarawak, Malaysia. Applicator: Eastern Energy Services Sdn. Bhd. Date Of Application: October 1999 The Challenge: Steel plates of this tank were joined using rivets and alkyd coatings applied on rivet heads and in between lap joints starts to break after some time due to movements and exposure to petrochemical environment. Corrosion is visible in these breaks and later on becomes an eyesore due to rust stains thus making the external surface of the tank looks old and dirty. At the same time, corrosion at rivet heads continues and it will end up a big problem. The client wants a coating that will seal or fill the gap in between the rivets and the steel plate for a longer protection so that they will not repaint the entire area almost every year. The Recommendation: Corro-Dur 257 was applied on abrasive blasted surface in way of the rivet heads and lap joints. Then a thicker coating of Corro-Dur 561 was applied around the rivet heads to permanent seal the gaps between the rivet and the steel plate. A third coat of Corro-Dur 257 was again applied prior to topcoat application of self-cleaning alkyd paint. Corro-Dur was chosen because of its unique qualities especially as filler and a shorter re-coating period speeds up the painting process.