West Indies opener Kraigg Brathwaite was obstinate in oppressive heat but his teammates failed to match his fight in a tour game at Geelong.
The visitors were desperate to rediscover some confidence on Saturday after being belted by an innings and 212 runs in the first Test against Australia.
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Brathwaite and Jermaine Blackwood were the only batsmen to pass 50 as the West Indies reached 7-303 at stumps.
The visitors largely failed to keep their cool as the temperature hit 44.4C, making it Geelong's hottest day in December on record.
Blackwood described it as the most stifling conditions he has ever played cricket in.
"I was so tired after running some threes," he said.
"At one point I was kind of losing concentration.
"I had to put that behind me and just focus on each ball."
Jeremy Hart, who is 30 and yet to play first-class or List A cricket, snared four wickets in a middle-order collapse of 5-31.
"We got some starts ... we just need to convert those starts now," Blackwood said.
"We'll just have to go back into the nets and continue to work hard.
"We're just putting in the work and hopefully it will pay off in the next Test match."
Australia hold a 1-0 lead in the three-Test series after enforcing the follow-on and winning on day three in Hobart.
Brathwaite, who scored 94 in his side's second innings of 148 in the first Test, picked up where he left off in Bellerive.
The 23-year-old retired on 78 at tea, having faced 175 balls in a valuable hit-out.
Blackwood scored 69 before he was trapped lbw by leg-spinner Hart in the Boxing Day Test tune-up.
Denesh Ramdin finished 38 not out, ensuring at least his side wasn't rolled by the locals.
Darren Bravo, who posted a century in the first Test, was rested but otherwise it was a full-strength batting order.
Travis Dean and Aaron Ayre were the only players in the hosts' XI with any first-class experience - both made Sheffield Shield debuts this season.
Marlon Samuels took an aggressive approach in his search for form after scores of nine and three in the first Test, having been promoted to first drop in the absence of Bravo.
Samuels slapped three consecutive boundaries off Hart in the morning session.
The veteran scored 45 off 39 balls before paceman Jackson Coleman had him out edging.
Rajendra Chandrika, the only wicket to fall in the morning session, was trapped lbw when he shouldered arms to Jackson Koop on 28.
Blackwood, who completed a pair and faced six deliveries in Hobart, was dismissed the ball after he thumped the only six of the day.
"The pitch was pretty slow ... pretty difficult," Blackwood said.
"As long as you're patient, it became easier."
Skipper Jason Holder, Carlos Brathwaite, Shai Hope and Jerome Taylor fell in the final-session collapse, which featured an outstanding catch in the deep from Aaron Ayre.
"It was a really good day, I really enjoyed it," Hart said of his haul of 4-93.
"There wasn't actually (any nerves), it was a bit surprising."
Officials scheduled an extra drinks break in each session due to the extreme heat.