Explanatory notes
… CAULKING COMPOUNDS AND OTHER MASTICS These preparations are mainly used to stop, seal or caulk cracks and, in certain … (quartz powder, sand, asbestos fibres, etc.). They are mainly used to seal sparking plugs, engine blocks and sumps, … to which fillers (e.g., wood flour) are added. They are mainly used to stop or seal cracks in wooden articles. (7) …