BOARD FINNISH & MULTI FINNISHARE EXACTLY THE SAME TO USE, BOARD FINNISH IS GENERALLY USED ON PLASTERBOARD, MULTI ON BACKING COATS
FOR BEST RESULTS USE TWO COATS ,APPLY THE FIRST COAT AS SMOOTH AS POSSIBLE ,FLATEN OFF WITH A CROSS TROWEL ,THEN APPLY SECANDCOAT SMOOTHER hOPE THIS HELPS
DAVE DS PLASTERERS
Thistle board finish is specifically made for plasterboard. Where Multifinish is made for not only plasterboard, but can be applied to other wall surfaces, and backing coats.
For the best result,all surfaces that require plaster finish.Two coats are recommended.
Mark Keeley ( google = MKPRS )