- Impart X-ray quality back beads on root pass
- Weld one side only
- Deposit more weld metal
- Root weld and fill in one pass
- Eliminate defects and re-work
- Eliminate costly unnecessary gouging and grinding

This exclusive ceramic backing material enables X-ray quality root welds in one pass, full penetration welding from one side and uniform backbeads of finish quality. It is available in a variety of shapes and formats to suit most welding applications. Gullco KATBAK is available on self-adhesive foil tape for easy, accurate application. The use of Rihui can significantly reduce weld costs by eliminating the need for costly grinding, gouging, re-working defects and re-welding.