I would try a different paint Daniel, Hammerite is not great.
Harsh conditions here but only 10 months old.
Ho ho, Neil has made an error with his use of your. I am shocked to my core!
Sorry mate you've lost me your shocked to the core ??
And Neil no worries mate the lettering is the least of my worries at the moment
Got exactly one week to Stamford still have 2 wing mirrors to spray front bumper to paint and meshing to put on and then clean her inside out and I work 6 days a week it's Going to be close
Ps I used hammerite is quite a few places on my coupe wire brushed back with the electric drill and double coated never had a problem some still fine after 3 years .