Instant Gasket?

[M0T]

I have some Hammerite instant gasket which I used to seal up a thermostat housing earlier, how long should I be waiting before filling it up with water (the packaging mentions nothing but usually you have to wait until silicone sealants have cured before getting wet)?

 

[Clarkey]

last time I did one on a 300, I left it as long as it took to refit the covers/fan/radiator, not long at all.

 

[Crossy]

Im guessing you mean the orange stuff. Yeah at work we usually stick some new coolant in once we;ve rebuilt the front end back up. so like 10 minutes maybes?

 

[BigglesPiP]

Use a test patch.

 

[fonzee]

its pretty much within the 10minute region. When i used it on my head i waited about 20 minutes however just to make sure.

 

[Gaijin]

Never used it but if its called "Instant" gasket, i'd expect it to set, well, instantly?

 

[Jonny69]

Silicone stuff I just leave it as long as I can, so like 1/2 hour minimum if I can.