Zinsser BIN - still need knotting?

[RickDastardly]

I'm painting new timber (no idea what, probably pine, it's full of knots) and MDF cupboard doors in a bathroom. Plus a mostly sanded back to the wood main door frame and mouldings, and a new cheap door similarly full of knots in the edges.

If I'm using Zinsser BIN to prime, do I still need to use Rustin's knotting liquid on the knotty pine or will the BIN be knot-proof itself?

I've never used Zinsser BIN before but read that it is good for the MDF doors. Paint will be white Dulux Satinwood (solvent based, not water).

 

[ETAF]

have a read here

Zinsser BIN & treating knots (or Bullseye 123)

I've used BIN before. Bit (or rather a lot) of a P.I.T.A to work with but it did the job well when i used it. I painted the doorframes which we'd stripped back as best we could to wood, taking off 80 years & god knows how many layers of paint & some weird honey coloured glue like stuff. Thing...

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