#11
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Check whAteyecando s thread for his homemade frag blocks...He made his own concantation of portland cement and sand.
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#12
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Quote:
Basically silicone in a giant blob will take a long time to cure so by adding the corn starch to the thinned down silicone it cuts the cure time to a couple hours
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Guide to building super awesome rock structures / my tank journal http://www.canreef.com/vbulletin/sho...d.php?t=116410 |
#13
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Quote:
Tested it and the corn starch did nothing for the cure time so I went ahead with a method that I had used in the past that worked well for me... Mix the thinned silicone with a bit of water . Dried to the touch within an hour throughout the whole 2" thick block ( I cut it in half to check) So now all I have to do is buy some more rtv silicone and make my final mould now that my "tests" are finished
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Guide to building super awesome rock structures / my tank journal http://www.canreef.com/vbulletin/sho...d.php?t=116410 |
#14
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So, you thin down Silicone 3:1 with paint thinner and then mix water into it to accelerate the drying? Can you please elaborate on this?
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Ross 9 Gallon Nano, Modular LED Lights 14 Gallon BioCube w/ Rebel LED Lights 67 Gallon Mixed Reef, Modular LED Lights Send in the Clowns - Clown Fish Breeding 5 Gallon Fry Hatchery and 15 Gallon Clown Grow Out Tank |
#15
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Quote:
Rtv Silicone cures through exposure to moisture in atmospheric air, because I'm creating a giant "blob" of silicone the center does not get exposed to moisture. By adding a small amount of water to the mix it exposes the inner parts of the blob to water allowing it to cure. Also I used xylene as a thinner as I have lots laying around
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Guide to building super awesome rock structures / my tank journal http://www.canreef.com/vbulletin/sho...d.php?t=116410 |
#16
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There's an easier way too... But two part silicone
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Guide to building super awesome rock structures / my tank journal http://www.canreef.com/vbulletin/sho...d.php?t=116410 |
#17
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Buy...
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Guide to building super awesome rock structures / my tank journal http://www.canreef.com/vbulletin/sho...d.php?t=116410 |
#18
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I assumed that he was using 2 part RTV to begin with.
This would be a bit cheaper if it works.
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Ross 9 Gallon Nano, Modular LED Lights 14 Gallon BioCube w/ Rebel LED Lights 67 Gallon Mixed Reef, Modular LED Lights Send in the Clowns - Clown Fish Breeding 5 Gallon Fry Hatchery and 15 Gallon Clown Grow Out Tank |
#19
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Nope, I'm just using all the half tubes of silicone I have laying around
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Guide to building super awesome rock structures / my tank journal http://www.canreef.com/vbulletin/sho...d.php?t=116410 |
#20
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First attempt with one of my test moulds
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