The recall of coloured play-sand products - potentially contaminated with asbestos - has been continuing to cause disruption on both sides of the Tasman.

A recall notice was issued last week for EC Rainbow Sand 1.3 kilos - and Creatistics Coloured Sand, 1 kilo.

More than 20 schools and early learning centres are temporarily closed.

Australia correspondent Lesley Yeomans told Andrew Dickens schools and centres across Australia are also impacted.