Ge iron grip for reseal

[Brett newell]

Good evening all,

I am in the process of putting new silicone in a 125 gallon that will be a sump for my new 210. The 125 has been running the 3 years I've had it with no leaks, but after emptying and letting it dry I noticed how bad the silicone looks. I think a previous owner resealed it at one point. Anyway, I have all the old stripped off and the glass is nice and clean. So my question is, should I use ge silicone 1 that I have lots of to use for baffles or should I use the ge iron grip for the reseal?

 

[Jacked Reefer]

Silicone one. The seal holds little to no structural integrity and silicone one is known to be reef safe. Even if it was sturctualral I wouldn’t trust iron grip in a reef setting.

 

[Brett newell]

Thanks for the input. My gut was saying go with the tried and true product. I'm letting it dry out over night, I'll silicone it after work. Should be good to hold water by saturday right?

 

[Jacked Reefer]

Thanks for the input. My gut was saying go with the tried and true product. I'm letting it dry out over night, I'll silicone it after work. Should be good to hold water by saturday right?

It “should” be good on Saturday. But I let it cure as long as possible. If you have a week to just let it sit that would be preferable

 

[Brett newell]

You think it would help to have a small fan in it circulating air?

 

[Jacked Reefer]

You think it would help to have a small fan in it circulating air?

I have no idea. I just do my tanks the only fashion way. Hopefully somebody else steps in.

 

[crusso1993]

A little late to the party but wasn't on here yesterday. FWIW - ASI is the best aquarium silicone you can get. If you take a few minutes to research it, you'll quickly see what I am talking about.

 

[Brett newell]

I actually just over nighted rtv 108

 

[Skydvr]

I'd let it go for at least a week. The silicone I is an acetoxy cure silicone (releases acetic acid during cure) and requires some moisture to cure. With the drier winter air, it will take longer to cure. It isn't a structural bond, so filling before it is fully cured wouldn't be the worst thing to do. As long as the vinegar smell is gone, you should be good to go.

 

[Brett newell]

I'm not really in a rush. I'll let it cure for a while. Rtv 108 will be here tomorrow so I'll seal it tomorrow add baffles Wednesday and let it cure until next weekend. I'll get it in place this weekend and get it plumbed up then wait another week.
All the fish are in another 125 I have so they are fine there

 

[Skydvr]

I’m a fan of the Momentive 100 series. One of the highest shear, tinsile, and bond strengths of commercially available silicone. There are a few that are higher, but not by much and they aren’t as readily available. It is also actually an adhesive as opposed to the GE I, which is a caulk.


[EDIT] Momentive 100 series is acetoxy cure as well.

 

[Brett newell]

Momentive rtv 108 is what I over nighted. Will be here today. I'll seal it tonight then water test it next weekend.

 

[Brett newell]

Little update. I finished cleaning and scraping tonight with razors and acetone. I applied the rtv 108 and ran my finger down all the seems. It's not pretty but it looks like a good seal all around. Water test in 10 days.

 

[Brett newell]

I inspected my seals this morning after it has started to dry. I noticed some areas are sealed but slightly thinner than other areas, can I add a little silicone to the top of the silicone I just put down ?