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Posted By Peter MacDonald
Does anyone know of the best accepted method of removing layers of built up paint on old structural steel. It is to allow the steel to be cut with a flame torch. I would like to remove the paint 150mm either side of the cut point.
My thoughts are for paint stripper but the paint has been built up over the decades and is now 3 to 4 mm thick and I'm not sure that will work. We have been using needle guns but they are time consuming, noisy and dusty and have low trigger time due to HAV. The work has to be done from MEWPs!
Obviously the best technique will be a balance over speed, exposure and contamination (to operative and public) but I have no real take on the best technique. I'm aware of the Lead Regs and the requirements for protection and decontamination.
Ta in advance
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Posted By Ian H
Peter
This is from memory, so you will need to double check with other responses. When I was involved in this type of work at railway stations I recall needle-guns and blasting being used. As you mentioned you need to be really on the ball with the environmental monitoring and assessments of blood/lead levels before and during the work.
Many of the related issues we had were not just from the task itself, but from hygiene issues such as smoking and dirty/clean areas and dust suppression.
Regards
Ian
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Posted By rks
Peter,
Paint stripper should be fine. If it is reapplied a couple of times it will remove the paint and also keeping dust and particles down to minimum.
Regards
RKS
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