Scott Morrison would encourage manufacturing firms to breathe new life into their operations if the nation decides he should remain prime minister.

The leader also wants to ramp up efforts to get more foreigners buying Australian-made products.

Mr Morrison has vowed to invest $50 million in a new fund that would give manufacturers incentives to invest in more modern technology.

Companies willing to spend between $50,000 and $100,000 on smaller-scale upgrades could apply to have those funds matched, with $20 million of the fund’s cash going towards such grants.

The other $30 million would be distributed as grants of up to $1 million for major upgrades, for companies willing to invest at least three times as much.

Ultimately, the government’s initial investment is expected to attract $110 million from the manufacturing industry.

That would be good news for Australians looking for a job, Science Minister Karen Andrews says.

“We want to keep our manufacturers at the cutting edge so they can create more jobs,” she said.

The coalition also wants to reinvigorate the ‘Australian Made’ campaign, to encourage more foreigners to buy products made down under.

The revamp, costing $5 million, would promote the Australian Made logo in the nation’s key export markets and create new trademarks in other markets such as the European Union, United Kingdom and Canada.

Mr Morrison, who will be in Sydney at the start of Monday, says people across the world know the Australian Made logo means quality, thanks to the good reputation Australian manufacturers have built over many years.

“Our plan is about giving those hardworking business a competitive edge in overseas markets.”

The focus on product-making businesses comes after the prime minister spent Sunday on the NSW central coast, talking up the coalition’s new plan to crackdown on online trolls.

Under their proposed measures, people found guilty of using a carriage service to menace, harass or cause offence would be jailed for up to five years, instead of three.

Parents would also have access to resources to help them navigate the challenging task of keeping their kids safe.

The prime minister is likely to accuse his Labor rival Bill Shorten on Monday of revealing too little about what his policies will cost at Sunday’s Labor campaign in Brisbane.

The opposition will deliver its full costings on Thursday or Friday.

The Liberal Party will hold its own campaign launch next Sunday, just a week out from the May 18 election