Born and raised in Maputo, Mozambique, Isaac was introduced to the traditional technique of woodcarving by friends in his neighbourhood when he was 12 years old. In 1990, at the aga of 16 Isaac moved to South Africa with a friend and immediately linked up with other young artitst in the community. Shortly after moving to Durban, he joined the BAT Centre where he worked as a professional, fulltime woodcarver.
In 1992, Isaac was exposed to the thechnique of woodcut printing, a medium he continued to embrace. Isaac said it was his experience as a sculptor which advanced his affinity and love of working and experimenting with woodblock printing. In approximately 1998, Isaac started exploring the technique of colour reduction woodcut techniques, which entails cutting away at the woodblock each time a new colour is printed.
Isaac exhibited at a number of galleries in South Africa. In Durban, these included the Durban Art Gallery, the African Art Centre and the BAT Centre's Democratic Gallery. His work is represented in numerous private and corporate collections including the Tatham Art Gallery, the Durban Art Gallery, and the Killie Campbell Museum. He was also responsible for the artwork which adorns the central food court at the Liberty Midlands Mall in Pietermaritzburg. These murals are enlargements of his woodcut prints.