Pirelli has confirmed the construction of its tires will remain unchanged at least until the Hungarian Grand Prix, scrapping its initial plan.
The Italian tire manufacturer had intended to introduce its modified tires for the Canadian Grand Prix, but then agreed to just test them in practice before a planned introduction in the British Grand Prix.
With rain hitting practice in Montreal, the plan had to be scrapped, and the company announced it would instead use a revised bonding procedure to correct the delamination issues.
Pirelli announced on Thursday the compounds for the upcoming three races, also confirming the tire constructions will not be changed.
"This decision is due to the fact that the new tires, which were brought to the Friday free practice sessions in Canada, could not be tested sufficiently due to rain – and that the teams failed to agree unanimously about introducing the changes," said Pirelli in a statement.
The Italian company will take the hard and medium tires to the British Grand Prix, while it will use the medium and softs in Germany next month. For Hungary, Pirelli will take the hards and the mediums once more.
Tire compound choices in 2013
Australia Supersoft Medium
Malaysia Medium Hard
China Soft Medium
Bahrain Medium Hard
Spain Medium Hard
Monaco Supersoft Soft
Canada Supersoft Medium
Great Britain Medium Hard
Germany Soft Medium
Hungary Medium Hard