* Polish PMI inches up to 42.55 in May, from 42.1 in April
* Czech PMI up to 7-month high of 40.5, from 38.6
* Analysts say economic downturn stabilising, Q2 to be weak
By Michael Winfrey
PRAGUE, June 1 (Reuters) - The fall in manufacturing in the European Union's two largest ex-communist economies slowed in May, and analysts said the worst blow to the sector appeared to have passed, although the region was still in a deep downturn.
Despite a stabilisation of credit markets and "green shoots" that some western policymakers say indicate a bottoming out, the EU's eastern wing is still beset by a sharp industrial contraction due to a collapse in euro zone demand.
But due to improving sentiment in western Europe, expectations for industry have brightened, particularly in Poland, where exports account for only about 45 percent of the economy, versus 70 percent for the Czechs.
The Purchasing Managers Index (PMI) for Polish manufacturing edged up to 42.55, from 42.1 in April, signalling its mildest pace of decline since October, Markit said.
Czech PMI crept higher to a seven-month peak of 40.5, from 38.6 in April. Both figures were still well under the critical 50 level dividing expansion from contraction.
"Although the manufacturing sector continued to experience a sharp contraction mid-way through Q2, this release provides further evidence that the worst of the industrial downturn has passed," said Trevor Balchin, an economist at Markit.
"PMI data also support the view that Poland is weathering the global economic crisis better than export-reliant neighbours such as the Czech Republic."
However, following worse-than-expected growth and industry data released last month, analysts said the very slight upticks did not give them much hope of a quick, strong recovery.
Poland was one of the few countries to actually show growth in the first quarter, but it came in below expectations, with the economy growing 0.8 percent, versus a consensus forecast of 1.0 percent.
On Friday, data showed Czech industrial output fell by 23 percent in April, returning to a near record pace of decline after a brief respite in March. That followed a worse-than-expected fall in gross domestic product of 3.4 percent in the first quarter.
Economists have also warned that rising job cuts at firms, a contraction of investment, rising bankruptcies, and very weak credit growth were also taking a toll on the economy, preventing an early rebound from the crisis.
For example, Czech media reported on Monday that truck maker Tatra will cut 450 of its 2,750 workers on Monday after previous cuts, and two companies were declared bankrupt.
"What we're seeing is the expectations are improving significantly but the actual current conditions are not. In fact in some countries they are deteriorating," said Raffaella Tenconi, chief economist at Wood & Co.
"So I would expect Q2 GDP to remain extremely weak. The bulk of the recovery starts in late Q3." She said she thought the Czech central bank would cut interest rates by a quarter of a percent this month and perhaps cut again several months later. (Additional reporting by Gabriela Baczynska; Editing by Toby Chopra)