What's everyone using for Black silicone?

Mr2KiEu · 01/22/2018, 12:35 PM

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 · 01/22/2018, 12:40 PM

2 is my

illuminata · 01/22/2018, 01:58 PM

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 · 01/22/2018, 03:03 PM

#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 · 01/23/2018, 06:16 AM

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 · 01/23/2018, 10:56 AM

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 · 01/23/2018, 11:32 AM

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

Mr2KiEu · 01/24/2018, 11:03 AM

Quote:

Originally Posted by Chalu

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

Amazon for $9.94 Prime

01/23/2018, 10:56 AM	#6
Mr2KiEu Registered Member Join Date: Jul 2004 Location: Bay Area, Concord, CA Posts: 1,126	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! __________________ Red Sea Reefer 525XL/3x ReefLED90/Quad Ecotech Vortech MP40QD/Neptune COR20/Reefer Skimmer 900/Tunze 3155 ATO/Neptune Apex/Neptune DOS/Kessil H80/ Current Tank Info: Red Sea Reefer 525XL

01/22/2018, 12:35 PM	#1
Mr2KiEu Registered Member Join Date: Jul 2004 Location: Bay Area, Concord, CA Posts: 1,126	What's everyone using for Black silicone? 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 __________________ Red Sea Reefer 525XL/3x ReefLED90/Quad Ecotech Vortech MP40QD/Neptune COR20/Reefer Skimmer 900/Tunze 3155 ATO/Neptune Apex/Neptune DOS/Kessil H80/ Current Tank Info: Red Sea Reefer 525XL

01/22/2018, 12:40 PM	#2
jayporksandwich Registered Member Join Date: Dec 2017 Posts: 188	2 is my

01/22/2018, 01:58 PM	#3
illuminata Registered Member Join Date: Apr 2013 Location: Union City Posts: 127	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.

01/22/2018, 03:03 PM	#4
Chalu Registered Member Join Date: Aug 2006 Posts: 306	#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

01/23/2018, 06:16 AM	#5
aikenreefkeeper Registered Member Join Date: Aug 2011 Location: Tucson AZ Posts: 121	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.

01/23/2018, 11:32 AM	#7
Chalu Registered Member Join Date: Aug 2006 Posts: 306	Where are you buying the ASI from? I may have a tank build in the pipeline...