Mastics 

R28 and R28 Zero VOC

Royston R28 is a rubberized bitumen based thixotropic mastic that provides corrosion protection for below grade application to fittings, flanges, and other irregular surfaces.

  • R28 is available in standard and zero VOC versions
  • Provides corrosion protection on irregular surfaces
  • Royston Glas-Wrap can be used to offer additional strength and impact resistance
  • Can be backfilled in approximately 2 hours. Low temperatures and high humidity will lengthen cure time


A51

Royston A51 is a single component thixotropic coal tar mastic that provides corrosion protection for coating fittings, flanges, valves, and other irregular services.

  • Good resistance to oil and gas
  • Royston Glass-Wrap can be used to offer additional strength and impact resistance

TC Mastic Brush Applied

Tapecoat TC Mastic is a single component thixotropic coal tar mastic that provides corrosion protection for coating fittings, flanges, valves, and other irregular services.

  • Good resistance to oil and gas
  • Royston Glass-Wrap can be used to offer additional strength and impact resistance
null