JoeJoe wrote:

What is the difference between a primer and an undercoat?

Primer is there to stick to the ioriginal surface and seal it and
possibly to create a smooth surface - i.e a good primer sticks well to
teh (wood) is thick and can be sanded to give a toally grain free finish.
The unedrcaot is there to basically provide MOST of tghe coulr - its teh
bit that reflects most of te light.

The top coat is there to provide the corect surface finsih and be the
main defense against damage - so it might be hard and glossy, but often
has less pigment in it than the undercoat.


Looking to paint doors, skirting, and facings - all are now striped.

Was looking at http://www.screwfix.com/app/sfd/cat/...93859&id=12383
and http://www.screwfix.com/app/sfd/cat/...93763&id=18002, with the
later much cheaper (I have 5 doors inc. facings and skirting in 5 rooms to
paint).

Plan it to finish with
https://www.screwfix.com/app/sfd/cat...94082&id=11842.

TIA.