What's everyone using for Black silicone?

[Mr2KiEu]

Need to seal up my overflow. I've narrowed it down to these three. Has anyone used any of these? Amazon has them, but anywhere local I can buy?


1. Momentive RTV103 One Part Silicone Sealant, 10.1 Ounce Caulker, Black


2. ASI Black Aquarium Silicone Sealant - 10.2 Fluid oz Cartridge


3. Dow Corning 999A Silicone Glazing Sealant - Black

 

[jayporksandwich]

2 is my

 

[illuminata]

2

I added a center overflow with this stuff last week and it went on smooth and clean. I wasn't satisfied with how I lined things up so I decided to re-do it. Unfortunately it had already cured so it was a HUGE PITA. Couldn't believe how well this **** sealed. Took me 3 hours to remove all the silicone and residue.

Note to self. Do it right the first time.

 

[Chalu]

#1 used it to build a 240G tank, 100g sump, modify a 40g breeder.. got it shipped from mcmaster;

Grainger used to carry them... if they still do that maybe a local pickup option, slight premium on the price but no waiting for shipping

 

[aikenreefkeeper]

I used the Momentive RTV 103 to put the baffles in my sump and reseal my 120. It works very well, but sets up quickly.....but I am in Arizona with very low humidity. I will use it again if needed. I got it from McMaster Carr as well.

 

[Mr2KiEu]

Thanks for all the replies. I decided to go with the #2 ASI since it'll be acrylic to glass and made specifically for aquariums. Read great things about the #1 Momentive tho.

Thanks everyone!

 

[Chalu]

Where are you buying the ASI from? I may have a tank build in the pipeline...

 

[Mr2KiEu]

Where are you buying the ASI from? I may have a tank build in the pipeline...

Amazon for $9.94 Prime