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primer

Post about things you have launched or thought about launching. Also post about various materials used for building cannons. No posts about explosive projectiles!
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primer

Unread postAuthor: iknowmy3tables » Sun Jan 21, 2007 3:05 pm

My dad (who is a licensed plumber) told me that primer is nothing but concentrated rubbing alcohol with dye. He says the dye is a legal thing for inspectors so they can tell if people primed their joints. Is this true? So all we have to do to get clear primer is to get high concentrate alcohol, (higher than the 70% at the pharmacy)?
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Unread postAuthor: chevy08racing » Sun Jan 21, 2007 3:25 pm

I Believe so.
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Re: primer

Unread postAuthor: MrCrowley » Sun Jan 21, 2007 4:31 pm

iknowmy3tables wrote:My dad (who is a licensed plumber) told me that primer is nothing but concentrated rubbing alcohol with dye. He says the dye is a legal thing for inspectors so they can tell if people primed their joints. Is this true? So all we have to do to get clear primer is to get high concentrate alcohol, (higher than the 70% at the pharmacy)?


he could be right, He could be wrong, But wouldnt primer be cheaper then concentrated alcohol anyway? Also its hard to see where you have primed without the dye. I'll just stick with the primer to stay safe.
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Unread postAuthor: nicholai » Sun Jan 21, 2007 4:43 pm

alcohol cant be concentrated, alcohol is alcohol, the difference is how much water it has in it. 100% alcohol = 200 proof.

And im 90% sure primer is not simply alcohol, while it does have some in it to help clean the pvc, it is not a strong enough solvent to actually soften the pipe.
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Unread postAuthor: benstern » Sun Jan 21, 2007 6:08 pm

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Unread postAuthor: mark.f » Sun Jan 21, 2007 7:08 pm

Primer contains acetone, methyl ethyl ketone, and other chemicals. Not alcohol.
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Unread postAuthor: boilingleadbath » Sun Jan 21, 2007 8:13 pm

Primer is a noxius brew of several chemicals - but (IIRC) does not contain any alcohols.

If he persists, you can probably point out on the can where it lists the ingredients. (well, at least my can does)
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Unread postAuthor: BC Pneumatics » Mon Jan 22, 2007 9:17 am

Not sure what happened to my reply to this topic, but...

If what you said was true, then clear primer would be illegal
PVC primer is Methylethyl Ketone, Acetone, Tetrahydrofuran, and Cyclohexanone.

As you can see, no alcohols.
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Unread postAuthor: iknowmy3tables » Mon Jan 22, 2007 2:42 pm

Hmm I don't think clear primer is illegal, I think it's for projects that don't include commercial buildings, and homes things that never need inspection by a goverment officail.

maybe you can get away with just washing the fittings really well with acetone, cause most pvc cements ligtly disolve/ soften joint anyways. I even tested
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Unread postAuthor: BC Pneumatics » Mon Jan 22, 2007 2:52 pm

ALL cements do that as far as I know...
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Unread postAuthor: nicholai » Mon Jan 22, 2007 9:32 pm

cement is nothing more than primer and a few added glue fillers to help bond the pvc.
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Unread postAuthor: iknowmy3tables » Tue Jan 23, 2007 8:32 am

so It's ok to not prime joints with primer as long as you clean it really well with strong cleaning agents such as acetone and achohol, and use the correct amout of pvc cement (tons of pvc cement)
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Unread postAuthor: BC Pneumatics » Tue Jan 23, 2007 9:12 am

No, it is not.
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Unread postAuthor: jrrdw » Tue Jan 23, 2007 1:12 pm

Take the Ipex online course, that is very infomational.

Here is the link.
If you have dail up with pop blocker, you will need to temporarly allow pop ups from that site, the course and test come in a pop up window. Click on "more information" link.
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Unread postAuthor: garrettee » Tue Jan 23, 2007 2:25 pm

1. I have taken the course.
and 2. benstern, what the HELL is that in your sig. :shock: :shock: :shock: :shock:
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