Influence of the volcanic tuf on the wearability of varnish coating

At this work an influence of the volcanic tuf on the improvement in the wearability of varnish coatings was described. Examinations were conducted for covers made on the basis of single-component binder - alkid, two-component - acrylic and for comparison of paint hammerite and of varnish of the sailing boat preparation with the addition appropriately prepared of the volcanic tuf. Coatings were put directly on the low-carbon steel without earlier applying undercoats. Conducted examinations were aimed at determining loss of mass of the sample (in the mg) subjected by abrasive circles to the friction about the fixed charge. Comparing findings for covers made of binders mentioned above put directly on steel they stated that the addition of the preparation of the volcanic tuf considerably was improving the wearability of inspected covers.