i use slime on my mtb commuter. but i would never put that stuff into a road tire. psi is to high, slime is known the cause valves to pop, moreso at high speeds in corners. its dangerous and makes a mess. atleast for clinchers, dunno about tublars.

my mtb had a 1 inch nail in the rear tire, and 4 other punctures, all it had was a slow leek with slime, that required pumping every two weeks. i got tired of pumping it up and found the punctures on day, but i road like this for 3months or so.