Mending a crack in lino

[Nigel Watts]

Having very carefully removed a piece of lino from my wife's bathroom floor to gain access to the subfloor plumbing I now want to put it back. The lino had been propped vertically against the wall and had partly curled up. In trying to flatten it I cracked it along its two foot length (I now realise I should have warmed it first). I have looked online and people have mentioned seam sealers but most seem to be for Vinyl floors. Any recommendations for a product I should use?