Charlotte Allen | HOW TO DIY on Instagram: "HOW TO PAINT A DOOR Here’s my process for painting internal panel doors It’s the same for pre-primed and old oil based doors but wanting to go waterbased so they stay bright white 🙌 What tools am I using? Arroworthy classic sash brush Arroworthy short pile microfibre mini roller Caperol Haftprimer for undercoat Festool RTS 400 sander but any mouse sander will do as well The sanding pads I get from Toolstation (10 pack of course pads for…