We have a small lab reactor (~2 Litres) made of stainless steel that we use to test reactions. Unfortunately, we now have one test which has a hot acidic environment (dil. HCl approx. 20%) that would corrode the native stainless steel. Is there any way to work around this? Maybe a coating? I've heard of glass coated reactors but not sure if there's a way to do such a coating by myself? Ideas?