Scapa Group has more than doubled its H1 pretax profit to £8.5m, from £3.3m.
"Scapa has delivered a strong first half performance with growth in revenue, trading profit and margins," said CEO Heejae Chae in a statement.
"We continue to consistently deliver improving results in a volatile and uncertain environment.
"We maintain a disciplined approach in executing our strategy and are excited about the opportunities that exist for the business.
"The Board believes the Group will deliver full year results ahead of expectations, benefitting from both improved trading and currency."
Revenue improved to £135.4m, from £119.3m. The company did not propose an interim dividend but intended to maintain a progressive dividend policy, it said.