Silicone Cure Time?

  • Thread starter

AquaLady

Well Known Member
Messages
1,219
Reaction score
5
Points
133
Experience
5 to 10 years
I know silicone takes at least 48 hours to cure. BUT there's no vinegar smell after about 12 hours. My room is VERY hot about 82 degrees. Would it have been possible that the heat cut the cure time? The beads weren't thick.
I had to reseal a very tiny leak in my used 55. I found out it was leaking because the plywood under it was wet. So I put a paper towel where the leak was and it was very minimal to the point the wood and towel would dry up and an hour later it will be wet again. So of course I resealed it after removing old silicone because we all know new silicone doesn't bond with old silicone.
Should I wait then do a water test again or is it safe now?
 

Jelly

Well Known Member
Messages
714
Reaction score
9
Points
63
Experience
5 to 10 years
Better safe than sorry. While its probably dry now, I'd wait the full 48 hours rather than take the chance of having to do the whole job all over again.
 

ricmcc

Well Known Member
Messages
2,753
Reaction score
47
Points
93
Experience
More than 10 years
I wait 24 hours, and it as never caused a problem. I think that the 48 hours mentioned is one, the manufacturer erring on the side of caution, and two, assuming the maximum bead size possible, which never seems to be needed.----rick
 

Teishokue

Well Known Member
Messages
2,605
Reaction score
34
Points
133
Experience
5 to 10 years
I always wait 24 hours and then smell it regardless. Better safe than sorry. Also, silicone cures better in a humid cool place.
 
  • Thread starter
  • Thread Starter

AquaLady

Well Known Member
Messages
1,219
Reaction score
5
Points
133
Experience
5 to 10 years
Lol everyone looks at me like I'm crazy because I'm always sniffing it.
 

Teishokue

Well Known Member
Messages
2,605
Reaction score
34
Points
133
Experience
5 to 10 years
careful, the fumes are not great for human inhalation.
 
  • Thread starter
  • Thread Starter

AquaLady

Well Known Member
Messages
1,219
Reaction score
5
Points
133
Experience
5 to 10 years
Sure isn't. The tank is filled and doing great. No leaks what so ever.
 
  • Moderator

ryanr

Moderator
Messages
11,342
Reaction score
1,192
Points
558
Experience
More than 10 years
Hi, what silicone are you using?

Generally speaking, silicone takes:

1-2 hours to get a 'skin' (go off)
24 hours to set and seal (safe for showering)
48 hours to set, seal and bond (safe for immersion in water)

7-10 days to be fully cured, ready for use in a full fish tank. Most tank builders will require the tank to stay 'still' and clamped for 7 days before moving it. After 7-10 days, the silicone is strong enough to handle the pressures and movements.

I recently bought some silicone, and it had a clear guideline on the back "If using for an aquarium, allow 7 days before filling" or something like that.

Just my 2c.
 
  • Thread starter
  • Thread Starter

AquaLady

Well Known Member
Messages
1,219
Reaction score
5
Points
133
Experience
5 to 10 years
Toggle Sidebar

Aquarium Calculator

Follow FishLore!





Top Bottom