For me primer is good if you have plastic in two colours, then your final paint have right colour, if plastic A is the same as plastic B, I don't use primer.
With Humbrol acrylic dropper paints they definitely need to be primed using Humbrol's primer - honestly, stick with their products entirely rather than mixing them with other manufacturers' products. There's no chance of an adverse reaction that way :) Best wishes, Geoff
Did you Prime the model first?
Some modellers swear by priming rather tan painting straight onto the plastic - what do you think of that?
For me primer is good if you have plastic in two colours, then your final paint have right colour, if plastic A is the same as plastic B, I don't use primer.
With Humbrol acrylic dropper paints they definitely need to be primed using Humbrol's primer - honestly, stick with their products entirely rather than mixing them with other manufacturers' products. There's no chance of an adverse reaction that way :) Best wishes, Geoff
At the start it says step 4
There is no cockpit green & no matt varnish in these bottles !!