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Old 03-17-2003, 10:18 AM   #11 (permalink)
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No. If the paint is a good grade of waterproof and you let it cure, it doesn't make a difference. I have a little of everything in there (primer, matte, gloss). Just match the appearance to your tank.

Since you mentioned it, I just remembered that I redid half the pipe I originally painted with a brown primer(matte finish) in order to blend with the flourite better.

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Old 03-18-2003, 03:41 AM   #12 (permalink)
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How do you know if a paint is a good waterproof grade?

I picked up some Rustoleum Painter's Touch primer and spray paint yesterday. According to Rustoleum's webpage, the aerosol spray is oil-based and the quarts and half-pints are acrylic latex. Would you expect one to hold up better than the other submerged in an aquarium? Why?

I lightly sanded the pipes and joints last night and then washed the dust off. Ready to prime and paint later today.

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20 gal; 50/50 Flourite/Tahitian Moon sand; AH Supply 1x55 W kit in custom canopy; pressurized CO2 w/ Mini Vortex reactor; Fluval 204 w/ FilterMax III prefilter; Pro Heat II
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Old 03-18-2003, 04:23 AM   #13 (permalink)
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Traditionally oil based is better, but with today's paints the results seem to be the same. I've used both with no issues other than the different drying times. Once cured the quality should be the same.

James Hoftiezer

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Old 03-26-2003, 06:03 PM   #14 (permalink)
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i read that cpvc is not the best for fish / plant life because it contains a chemical *which one i dont remember* that PVC does not contain. That is why cpvc is ONLY used for waste lines in a home, where as PVC is used for water lines.. May not harm them for the first 5 or so months.. but it could leach after a long time of continuous use.

I used pvc lines / primer / cement and it all worked out for the best So far 3 months so good


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Old 03-27-2003, 03:18 AM   #15 (permalink)
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Are you sure you're not confusing CPVC with ABS?

http://www.simplifiedreefkeeping.com/faq/faq5.htm

More importanly, depending on the PVC or CPVC manufacturer, there can be varied amounts of additives. One company's CPVC could have less additives than some other company's PVC, and vice versa. Then there's the issue of which additives more easily leach out of the polymer.

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Old 03-29-2003, 06:31 PM   #16 (permalink)
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PVC Primer IS safe - so is the cement.

I just made a spray bar from 1/2 inch pvc - I coated the bar with purple primer to make it blend in more to the black background - which it did, and since it sits in the back my plants hide it.

But I used cememebt and lots of primer - dried it with a hair dryer and 1/2 hour later put it to use, no problems

Thats my 2 Cents US

Dustin

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Old 03-30-2003, 01:10 AM   #17 (permalink)
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Only difference is CPVC can be used for hot water lines where PVC is for cold water and drain lines only.
ABS (Black pipe) is another beast entirely and should not be used in aquariums.

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Old 03-30-2003, 09:22 AM   #18 (permalink)
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ABS is what I meant then - ITS the greyish Black stuff - I guess I had the initials mixed up

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Old 04-06-2003, 09:06 AM   #19 (permalink)
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The ABS vs. PVC issue was debated at (excessively) great length over on the AquariaCentral boards a few months back. A few details for the nutshell rendition:

ABS isn't designed for pressure applications, so its only used for drain lines in construction. It has nothing to do with toxicity.

The black plastic that many filter housings and pump cases are made of is ABS. It has a long history of sitting in aquariums without deleterious effect.
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