Wanted - small amount of Dulux water based drywall primer

[CrunchB]

Does anyone have a small amount of this water based drywall primer they could spare? They only sell it in 10L tubs but I just need to test some paints. Very happy to pay for a portion! 
 

https://www.duluxtradepaintexpert.co.uk/en/products/dulux-trade-drywall-primer-sealer

[GrahamP]

No need for the primer, use a mist coat instead

Google "Drywall mist coat" for more info....

"Mist coat paint is simply watered-down emulsion paint, which acts as a primer. All you need to do is get some white emulsion paint and thin it out with water. Three parts paint to one part water should do the trick"