Dulux Satinwood trade (oil based) not hardened properly after several months

Joined
4 Nov 2009
Messages
24
Reaction score
15
Location
London
Country
United Kingdom
I painted stairs in a combination of White and a dark grey tinted colour - ‘Noble Grey’ both in oil based Dulux trade satinwood. The white was just an off the shelf tin, they grey was a made to order tint. Both bought at the same time and used less that a week later in March this year. 2-3 coats went on. It’s now August and the white paint it fine, dry, hard and fairly tough. I can’t do much damage to it with a fingernail. However the grey still feels slightly soft, i can easily dig a fingernail into it and various scuffs have removed paint. It’s not hard but feels slightly soft and not tough at all.

Whats going on here? How can i fix it? Was the paint tinted improperly? Something else?
 

Attachments

  • D4A5FF63-0FA2-40C4-8CFE-AF93B613B2A5.jpeg
    D4A5FF63-0FA2-40C4-8CFE-AF93B613B2A5.jpeg
    210.4 KB · Views: 278
Before applying the paint, was the old surface de-greased, sanded down, and undercoated first?
 
Hi, it was sanded down, cleaned with wonder wipes, and primed with Zinsser BIN, same process for the white painted areas that are ok.
 
Back
Top