He settled in Amsterdam where in 1757 he married Maria van der Steen.
Zegelaar was a pupil of Nicolaas Verkolje and is known for small genre paintings that were often sold by pairs, and for portraits, but also made wall decorations.
[2] He painted a wall decoration for the owner Quarles van Ufford on the house located at Spaarne 106.
[2][1] His works were collected by Gerrit Braamcamp and Jan Gildemeester.
He then retired to Wageningen, the city where his father had been born.