Have you considered adequate light and heat resources in getting your system balanced?

Here is a link that might be useful: Starting Seeds Indoors

That is a chronic problem with capillary matting - it gets and stays too wet. The only solution I have found, only way to adjust it, is to reduce the size of the pot holes so they don't absorb so much water from it. That is how those automatic watering set ups work - small holes. Or transplanting the plants into much bigger pots so they don't get so soaked.

In the past I tried wringing it out well, running it through the washer and dryer, cutting it into smaller strips so there was just a small strip right under the pots rather than a whole sheet of it (that helped some), and cutting the part that sits in the water down to a narrow strip so it can take up water more slowly (that helps a bit too).

Either way it isn't ideal and I have lost whole trays of seedlings to it in the past so finally pitched it.

Sorry I can't be of more help.

Dave

In my instance totally the opposite is occuring....Initially the mat soaked up a lot of water...Now, however, the mat doe not soak up any water on its own...has anyone had this problem before?