Hatch Gasket

[essman]

Have a 1983 Irwin 37. Need to replace the hatch gaskets. I cannot determine who made the hatches, there are no identifying markings that I can see. It appears that the gaskets were round at one time. About 3/8 inch diameter. Anybody found a source for round hatch gasket material? Can find plenty of "D" shaped gaskets, but no round ones. The hatch glass has a groove cut in it to accept the round gasket, plus the hatch body has a round track in it. Guess I could use D shaped gasket where the flat sides would meet, but the D shaped gasket material normally has 2 sided tape on the flat side for mounting. I know somebody out there surely has replaced the hatch gaskets by now......

[essman]

I finally found the hatch gasket material if anyone ever needs it.
Found it at a company called McMaster-Carr - www.mcmaster.com.
The foam comes in 2 types, EPDM and neoprene. Don't really know the difference, but I got the EPDM. Had to buy a 100 foot roll, but that will replace all the hatch gaskets on the boat (twice). The roll was $25.00.
My boat (Irwin 37CC) used 3/8 inch round cord.