AN ATP RATED CORPORATE PLT FLYING A CESSNA CITATION AT SIV RPTS DIFFICULTY SLOWING HIS ACFT AFTER LNDG ON THIS WET RWY.

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THE WX WAS IFR IN FOG. IT HAD RAINED EARLIER. WE WERE FLYING THE NDB RWY 36 APCH TO SULLIVAN; IN. WE BROKE OUT IN TIME TO MAKE A NORMAL DSCNT AND LNDG IN THE TOUCHDOWN ZONE; ON SPD; TO RWY 36. SPD BRAKES; FULL THRUST REVERSE AND ANTI-SKID BRAKES WERE APPLIED; BUT DID LITTLE GOOD. THE AIRPLANE DID NOT DECELERATE ON A NORMAL SCHEDULE. FINALLY; WE GOT SLOW ENOUGH TO TURN OFF AT THE END. I SPOKE TO THE DEPT OF AERONAUTICS FOR INDIANA; WHO DID SOME RESEARCH ON THAT ARPT SURFACE. IT HAD AN FAA AIP PROJECT COMPLETED 3 YRS AGO. HE ALSO SAID THAT IT HAD A CLR SURFACE SEAL COAT APPLIED TO IT. I ASKED HIM IF ANY OTHER INDIANA ARPTS HAD A CLR SURFACE SEAL COAT; AND HE DIDN'T THINK SO. IS SUCH A SEALANT APPROVED? SOMETHING ON THAT RWY MADE IT AT LEAST AS SLIPPERY WHEN WET AS GLARE ICE. THIS IS A HAZARD AND IT SHOULD BE NOTAMED AS SUCH UNTIL THE SEALANT CAN BE REMOVED. THE ARPT MGR SAID THAT JETS VERY SELDOM USE THAT ARPT AND HE HAS HAD NO OTHER COMPLAINTS. IF ANY OTHER ARPTS IN THE UNITED STATES HAVE SUCH A SEAL COAT APPLIED; IT SHOULD BE REMOVED. WHEN WET; IT WAS AS SLIPPERY AS A ROCK IN A CREEK.