RD-Hydrograff HPRD Hydrograff HP is the solution to protect surfaces that are subject to severe strains. Whether it is a floor, industrial equipment, furniture, etc. RD Hydrograff HP has unmatched performance. For indoors or outdoors, this varnish can be applied directly on most kinds of paint and sometimes directly to the surface. USES: Highly resistant varnish specially formulated for the long term protection of surfaces against wear, abrasion, chemical spills, and