F1 drivers will be keeping an eye on the repaired track surface at Ste-Devote when they tackle the first corner at Monaco early on Thursday.
A major truck fire earlier this week burned the asphalt in the braking and turn-in zone for the famous corner, and circuit organisers have laid a new patch of track in record time.
"I walked the circuit and it looked ok. It looked like they did a good job," said Nick Heidfeld.
Nico Rosberg thinks the only issue will be the seeping of oil because the asphalt is not fully cured.
"We have to see if it rains," added Rubens Barrichello, "but I don't think there's any prediction of that."
Paul di Resta, who witnessed the fire as he recorded a circuit guide with British broadcasters BBC, also admitted he is slightly concerned.
"With the heat we have now, with temperatures not going much below 20 degrees and with track temperature at 45 during the day, you have to wonder at how that's going to cure," said the Force India driver.