Aquarium silicone sealant comparisons
- Thread starter Buckdog
- Start date
alkoholik;2587378; said:
See if there is a McMaster Carr industrial supply or another big industrial supply house nearby. The primer may come haz mat packaged.
I was just at one of my local hardware stores here in hawaii, all they carried was DAP, I seen the black that i wanted, it's 100% silicone and on the top of the tube is has Dow Corning so i'm assuming it's the same product, but it also says that it's not for continuous underwater use. Is it safe to use to re-seal a 125 gal?
Bosa;2646656; said:
Several folks here have used the DAP. Do a search and see what you come up with. From what was said somewhere here earlier the "not for continuous underwater use" you see on some tubes is a liability thing. The companies know we use this stuff to build aquariums with and they dont want anything to do with that.
The best thing to do is contact a chemist or tech with the company and find out. The tech sheet seems to say it doesnt flex very much.Bosa;2646700; said:
http://www.tbpconverting.com/products/productsPDFs/995.pdf
http://www.dowcorning.com/applications/search/products/Details.aspx?prod=02122197&Type=PROD
Thanks i was just getting a little confused because some say it's good, some say it's not that good, I ended up going with the Dow Corning 832 because i found 6 tubes for $9.99 on Ebay...the only thing is that it is in gray which i don't mind, i really wanted black, having the tank hold water is more important.
thought i would chime in on some data specs of both dow and ge(now mpm)
http://www.matweb.com this is the site i got my data from.
ge scs 1200 (construction)
atm
bar
dynes/cm²
g(force)/cm²
g/cm²
GPa
kg(f)/cm²
kg(force)/m²
ksi
lb/ft²
mm of Hg (0°C)
MPa
N/mm²
Pa
torr
next up is scs 1000 by ge (contractors)
atm
bar
dynes/cm²
g(force)/cm²
g/cm²
GPa
kg(f)/cm²
kg(force)/m²
ksi
lb/ft²
mm of Hg (0°C)
MPa
N/mm²
Pa
torr
next is dow 999a this is comonly used for aquariums (we use it when we repair small black silicone tanks.
atm
bar
dynes/cm²
g(force)/cm²
g/cm²
GPa
kg(f)/cm²
kg(force)/m²
ksi
lb/ft²
mm of Hg (0°C)
MPa
N/mm²
Pa
torr
next up is dow 700.
atm
bar
dynes/cm²
g(force)/cm²
g/cm²
GPa
kg(f)/cm²
kg(force)/m²
ksi
lb/ft²
mm of Hg (0°C)
MPa
N/mm²
Pa
torr
http://www.matweb.com this is the site i got my data from.
ge scs 1200 (construction)
atm
32.6
bar
33.0
dynes/cm²
3.30e+7
g(force)/cm²
33700
g/cm²
33700
GPa
0.00330
kg(f)/cm²
33.7
kg(force)/m²
337000
ksi
0.479
lb/ft²
69000
mm of Hg (0°C)
24800
MPa
3.30
N/mm²
3.30
Pa
3.30e+6
torr
next up is scs 1000 by ge (contractors)
atm
21.7
bar
22.0
dynes/cm²
2.20e+7
g(force)/cm²
22400
g/cm²
22400
GPa
0.00220
kg(f)/cm²
22.4
kg(force)/m²
224000
ksi
0.319
lb/ft²
45900
mm of Hg (0°C)
MPa
2.20
N/mm²
2.20
Pa
2.20e+6
torr
16500
next is dow 999a this is comonly used for aquariums (we use it when we repair small black silicone tanks.
atm
22.1
22.4
2.24e+7
22800
22800
0.00224
22.9
228000
0.325
46800
16800
2.24
2.24
2.24e+6
16800
next up is dow 700.
atm
15.3
15.5
1.55e+7
15800
15800
0.00155
15.8
158000
0.225
32400
11600
1.55
1.55
1.55e+6
11600
for all smal jobs (4x18x20) or less i would use dow particularly dow 999a. it is so much cheaper then ge. for all tanks with end panels 2x2' or larger i would use ge construction. please note that most places will not selll ge in anything less then a box of 12.
http://www.mscdirect.com/CGI/NNSRIT?PMPXNO=1656631&PMT4NO=57157858 Great place to get Dow prodcuts....