Thread: Long term effects of any liquid based marking tools?
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Old 08-20-2014, 08:40 AM
  #6  
Boston1954
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Join Date: Jul 2008
Location: East Oklahoma - pining for Massachusetts
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That is why I prefer chalk. I always wonder about the chemicals in other types of markers. I just do not want to take the chance of hurting something that I put a lot of work into.
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