not too sure mate. i know it works out slightly cheaper than wba (wickes just rebrand it). thats the main thing i dont like about bluegrit, the thickness of finish you have to apply. im paying around £21-£22 inc for blu grit so its there or there abouts. i used cementone plasterers primer the other day, not bad but horrible bright green colour. also skimmed over plasterers pre grit (dont know where he got it from, never seen it before) thats not bad stuff