E-B ''Stir-in'' Bonding Primer for Water Based Paints (Emulsions & Masonry)Now you can paint straight onto chalky, dusty surfaces. without wasting your valuable time & energy with old fashioned Stabilisers... just mix E-B into your First Coat of Paint and apply. (Interior or Exterior) Huge Labour & Time Saver!Used and loved by professional painting contractors in the U.S.A. since the late 60''s.E-B''s (short for Emulsa-Bond) powerful reputation as a "serious gripper" has spread across the Atlantic to the U.K. & Ireland and is now the ''bad wall'' primer of choice with thousands of pro''s who will not use or trust nothing else!Some Painters tenderly refer to Emulsa-Bond as ''Eternal- Bond'' guess why!Save massive time and money. No more scrubbing,washing, sanding, brushing. Just add E-B to your First Coat of Emulsion or Masonry paint and apply. You can leave the chalk on... and use it as a sealerTip: Use in first coat of emulsion on drywall to prevent paint pull off later on by adhesive tapes etc. Great where there may be posters, pictures etc.