Can I use CPVC cement on standard PVC? Or do I have to have a can of the
regular stuff, to put my project together? Just wondering, and really don't
want t screw this up over something so simple...

Thanks,

Dave

wrote in message
news
On Thu, 5 Nov 2009 19:38:38 -0600, "Dave" wrote:

Can I use CPVC cement on standard PVC? Or do I have to have a can of the
regular stuff, to put my project together? Just wondering, and really
don't
want t screw this up over something so simple...

Thanks,

Dave



Get the right stuff, or just buy the multipurpose (red can). That
works on all of them (PVC, CPVC, ABS).



Aah. Thank you. Much appreciated.

Dave

"Oyabun" wrote in message
...
On Thu, 5 Nov 2009 19:38:38 -0600, "Dave" wrote:

Can I use CPVC cement on standard PVC? Or do I have to have a can of the
regular stuff, to put my project together? Just wondering, and really
don't
want t screw this up over something so simple...

Thanks,

Dave


Use PVC cement. CPVC comes in two types. A one step and two step type
where you need a CPVC cleaner.

Huh. I didn't kow CPVC came in two types. I must have the one step type.
Thanks for the info.

Dave

Hi Dave,

Can I use CPVC cement on standard PVC?

I'm not trying to be sarcastic, but what does the can say? When in doubt,
read the directions...

In any case, a small can of dedicated CPVC cement is cheap, and not worth
risking possible complications. If your can of PVC cement is old, it's
probably gelled by now anyway.

Regardless of which cement you use, remember to clean the pipe and fitting
first with the purple "primer".

Good luck,

Anthony

On Nov 6, 10:40*am, HerHusband wrote:
Hi Dave,

Can I use CPVC cement on standard PVC?

I'm not trying to be sarcastic, but what does the can say? When in doubt,
read the directions...

In any case, a small can of dedicated CPVC cement is cheap, and not worth
risking possible complications. *If your can of PVC cement is old, it's
probably gelled by now anyway.

Regardless of which cement you use, remember to clean the pipe and fitting
first with the purple "primer".

Why purple primer?

R

HerHusband writes:
If your can of PVC cement is old, it's
probably gelled by now anyway.

Ok.. question... at what point does PVC cement go bad and not perform
well in "welding" a PVC joint. Obviousy if it is so hardened that it
won't coat the PVC, then it is bad. But what if it is just a bit
gelled (as in a little thick) but still is able to give a nice liquid
coating to the PVC? Will it still be just as strong?

I only occasionally end up using PVC so the cement and primer can end
up sitting around my basement for years. I do a good job of sealing
the cans tightly and then put them in air-tight plastic bags, so the
stuff does seem to stay fresh longer than one might expect -- on
principal, I hate to throw things out, but obviously, I would if
needed for an optimum weld.

Any thoughts?

In article ,
blueman wrote:

HerHusband writes:
If your can of PVC cement is old, it's
probably gelled by now anyway.

Ok.. question... at what point does PVC cement go bad and not perform
well in "welding" a PVC joint. Obviousy if it is so hardened that it
won't coat the PVC, then it is bad. But what if it is just a bit
gelled (as in a little thick) but still is able to give a nice liquid
coating to the PVC? Will it still be just as strong?

I only occasionally end up using PVC so the cement and primer can end
up sitting around my basement for years. I do a good job of sealing
the cans tightly and then put them in air-tight plastic bags, so the
stuff does seem to stay fresh longer than one might expect -- on
principal, I hate to throw things out, but obviously, I would if
needed for an optimum weld.

Any thoughts?

"Just a bit gelled" is somewhat subjective, but I've used less than
perfectly fresh stuff successfully on many occasions. Most important
thing IMO is surface preparation. I carefully and thoroughly sand both
pieces with 180-220 grit to break the glaze. I know the primer is
supposed to do that, but then I've never had a joint fail, as have
several of my non-sanding friends. Also of course the rotation during
assembly helps distribute the glue evenly.

Regardless of which cement you use, remember to clean the pipe and
fitting first with the purple "primer".

Why purple primer?

Obviously, the color doesn't matter, but around here (WA state) the purple
primer is what you typically find in the home centers. I haven't seen clear
primer in years.

PVC/CPVC primer is usually purple.
CPVC cement is usually orange.
PVC cement is usually clear (or blue).
ABS cement is usually black.

The color primarily lets you (and the inspector) see at a glance what type
of glue was used and whether or not the primer was used.

Anthony

Ok.. question... at what point does PVC cement go bad
and not perform well in "welding" a PVC joint.

I have used slightly gelled PVC cements in non-critical situations (outdoor
lines, or other easily accessable locations) and they seem to work fine as
long as you can get a good coating around the pipe and fitting.

However, if I'm joining a pipe that will be embedded in a wall or otherwise
covered up, I wouldn't take the risk for the small cost of a new can of
cement.

I only occasionally end up using PVC so the cement and
primer can end up sitting around my basement for years.
I do a good job of sealing the cans tightly and then put
them in air-tight plastic bags, so the stuff does seem
to stay fresh longer than one might expect

Once you open the can, you let air in that will let the cement start
gelling. For that reason, I usually buy two or three of the smallest cans
instead of the large cans. I use what I need for the current project, then
keep the unopened cans for those spur of the moment plumbing tasks.

Also, if you discover the cement has gelled a few years later, it's less
wasteful to lose part of a small can than part of a larger can.

Anthony

HerHusband wrote:
....
The color primarily lets you (and the inspector) see at a glance what type
of glue was used and whether or not the primer was used.
....
Mostly it serves to let the applicator quickly know they covered the
joint entirely.

--

On Thursday, November 5, 2009 at 8:38:38 PM UTC-5, Dave wrote:
Can I use CPVC cement on standard PVC? Or do I have to have a can of the
regular stuff, to put my project together? Just wondering, and really don't
want t screw this up over something so simple...

Thanks,

Dave

Weld-on says this: "Yes. CPVC solvent cement technically will work on PVC piping. However, we recommend that the correct Weld-On primer and PVC solvent cement for the particular application should be used. Please note that PVC solvent cement, because of temperature limitations, is not recommended for CPVC piping."

Oatey, on the other hand, is non-committal. But I suspect that CPVC cement will be OK on PVC, as Weld-on says. On the other hand, Weld-on also says above that PVC cement should not be used with CPVC pipe, but "because of temperature limitations" .. this means that for cold water, it just might be OK too.

And, from what I read online, it seems that if you happen to need to join CPVC and PVC stuff, you could use CPVC cement to do this. YMMV, I'm not an expert with any of this stuff, however.

On Fri, 18 Jan 2019 21:35:45 -0800 (PST), wrote:

On Thursday, November 5, 2009 at 8:38:38 PM UTC-5, Dave wrote:
Can I use CPVC cement on standard PVC? Or do I have to have a can of the
regular stuff, to put my project together? Just wondering, and really don't
want t screw this up over something so simple...

Thanks,

Dave

Weld-on says this: "Yes. CPVC solvent cement technically will work on PVC piping. However, we recommend that the correct Weld-On primer and PVC solvent cement for the particular application should be used. Please note that PVC solvent cement, because of temperature limitations, is not recommended for CPVC piping."

Oatey, on the other hand, is non-committal. But I suspect that CPVC cement will be OK on PVC, as Weld-on says. On the other hand, Weld-on also says above that PVC cement should not be used with CPVC pipe, but "because of temperature limitations" .. this means that for cold water, it just might be OK too.

And, from what I read online, it seems that if you happen to need to join CPVC and PVC stuff, you could use CPVC cement to do this. YMMV, I'm not an expert with any of this stuff, however.

Wow. More than 10 years ago I used PVC cement on CPVC pipe if I
recall. If the pipes fit I glue them, no?

On 1/19/2019 12:46 AM, Oren wrote:
On Fri, 18 Jan 2019 21:35:45 -0800 (PST), wrote:

On Thursday, November 5, 2009 at 8:38:38 PM UTC-5, Dave wrote:
Can I use CPVC cement on standard PVC? Or do I have to have a can of the
regular stuff, to put my project together? Just wondering, and really don't
want t screw this up over something so simple...

Thanks,

Dave

Weld-on says this: "Yes. CPVC solvent cement technically will work on PVC piping. However, we recommend that the correct Weld-On primer and PVC solvent cement for the particular application should be used. Please note that PVC solvent cement, because of temperature limitations, is not recommended for CPVC piping."

Oatey, on the other hand, is non-committal. But I suspect that CPVC cement will be OK on PVC, as Weld-on says. On the other hand, Weld-on also says above that PVC cement should not be used with CPVC pipe, but "because of temperature limitations" .. this means that for cold water, it just might be OK too.

And, from what I read online, it seems that if you happen to need to join CPVC and PVC stuff, you could use CPVC cement to do this. YMMV, I'm not an expert with any of this stuff, however.

Wow. More than 10 years ago I used PVC cement on CPVC pipe if I
recall. If the pipes fit I glue them, no?


I think using CPVC cement on PVC is safer than using regular PVC cement
on CPVC. CPVC is PVC with higher chlorine content and can be used at
higher temperatures. OTOH both cements contain similar solvents which
will cause either pipe to bond so it should not be a big problem.

On 1/19/19 12:46 AM, Oren wrote:
On Fri, 18 Jan 2019 21:35:45 -0800 (PST), wrote:

On Thursday, November 5, 2009 at 8:38:38 PM UTC-5, Dave wrote:
Can I use CPVC cement on standard PVC? Or do I have to have a can of the
regular stuff, to put my project together? Just wondering, and really don't
want t screw this up over something so simple...

Thanks,

Dave

Weld-on says this: "Yes. CPVC solvent cement technically will work on PVC piping. However, we recommend that the correct Weld-On primer and PVC solvent cement for the particular application should be used. Please note that PVC solvent cement, because of temperature limitations, is not recommended for CPVC piping."

Oatey, on the other hand, is non-committal. But I suspect that CPVC cement will be OK on PVC, as Weld-on says. On the other hand, Weld-on also says above that PVC cement should not be used with CPVC pipe, but "because of temperature limitations" .. this means that for cold water, it just might be OK too.

And, from what I read online, it seems that if you happen to need to join CPVC and PVC stuff, you could use CPVC cement to do this. YMMV, I'm not an expert with any of this stuff, however.

Wow. More than 10 years ago I used PVC cement on CPVC pipe if I
recall. If the pipes fit I glue them, no?



Agreed on drain pipes...prolly doesn't matter much. Oatey has a combo glue that works on both.

OTOH, on pressure or hot water pipes I'd use proper CPVC pipe, CPVC fittings and CPVC glue.


https://www.homedepot.com/p/Oatey-8-...8213/100116580

On 1/18/2019 9:35 PM, wrote:
On Thursday, November 5, 2009 at 8:38:38 PM UTC-5, Dave wrote:
Can I use CPVC cement on standard PVC? Or do I have to have a can of the
regular stuff, to put my project together? Just wondering, and really don't
want t screw this up over something so simple...

Thanks,

Dave

Weld-on says this: "Yes. CPVC solvent cement technically will work on PVC piping. However, we recommend that the correct Weld-On primer and PVC solvent cement for the particular application should be used. Please note that PVC solvent cement, because of temperature limitations, is not recommended for CPVC piping."

Oatey, on the other hand, is non-committal. But I suspect that CPVC cement will be OK on PVC, as Weld-on says. On the other hand, Weld-on also says above that PVC cement should not be used with CPVC pipe, but "because of temperature limitations" .. this means that for cold water, it just might be OK too.

And, from what I read online, it seems that if you happen to need to join CPVC and PVC stuff, you could use CPVC cement to do this. YMMV, I'm not an expert with any of this stuff, however.


CPVC and PVC pipes are highly unlikely to be compatible for joining. The
diameters are significantly different.

On Saturday, January 19, 2019 at 10:25:45 AM UTC-5, Bob F wrote:
On 1/18/2019 9:35 PM, wrote:
On Thursday, November 5, 2009 at 8:38:38 PM UTC-5, Dave wrote:
Can I use CPVC cement on standard PVC? Or do I have to have a can of the
regular stuff, to put my project together? Just wondering, and really don't
want t screw this up over something so simple...

Thanks,

Dave

Weld-on says this: "Yes. CPVC solvent cement technically will work on PVC piping. However, we recommend that the correct Weld-On primer and PVC solvent cement for the particular application should be used. Please note that PVC solvent cement, because of temperature limitations, is not recommended for CPVC piping."

Oatey, on the other hand, is non-committal. But I suspect that CPVC cement will be OK on PVC, as Weld-on says. On the other hand, Weld-on also says above that PVC cement should not be used with CPVC pipe, but "because of temperature limitations" .. this means that for cold water, it just might be OK too.

And, from what I read online, it seems that if you happen to need to join CPVC and PVC stuff, you could use CPVC cement to do this. YMMV, I'm not an expert with any of this stuff, however.


CPVC and PVC pipes are highly unlikely to be compatible for joining. The
diameters are significantly different.

I am reading that CPVC comes in standard Schedule 40/80 sizes (same sizes as PVC) as well as Copper Tube Sizes (CTS). Home Depot apparently carries some smaller dimensions of CPVC, to be used, for instance, as hot water pipe in home installations.

So many choices. That's a good thing if you know what you're doing.

Oren posted for all of us...



On Fri, 18 Jan 2019 21:35:45 -0800 (PST), wrote:

On Thursday, November 5, 2009 at 8:38:38 PM UTC-5, Dave wrote:
Can I use CPVC cement on standard PVC? Or do I have to have a can of the
regular stuff, to put my project together? Just wondering, and really don't
want t screw this up over something so simple...

Thanks,

Dave

Weld-on says this: "Yes. CPVC solvent cement technically will work on PVC piping. However, we recommend that the correct Weld-On primer and PVC solvent cement for the particular application should be used. Please note that PVC solvent cement, because of temperature limitations, is not recommended for CPVC piping."

Oatey, on the other hand, is non-committal. But I suspect that CPVC cement will be OK on PVC, as Weld-on says. On the other hand, Weld-on also says above that PVC cement should not be used with CPVC pipe, but "because of temperature limitations" .. this means that for cold water, it just might be OK too.

And, from what I read online, it seems that if you happen to need to join CPVC and PVC stuff, you could use CPVC cement to do this. YMMV, I'm not an expert with any of this stuff, however.

Wow. More than 10 years ago I used PVC cement on CPVC pipe if I
recall. If the pipes fit I glue them, no?

Are you a leaker? Gov't or otherwise? :-)

--
Tekkie

On 1/19/2019 7:51 AM, PJBeee wrote:
On Saturday, January 19, 2019 at 10:25:45 AM UTC-5, Bob F wrote:
On 1/18/2019 9:35 PM, wrote:
On Thursday, November 5, 2009 at 8:38:38 PM UTC-5, Dave wrote:
Can I use CPVC cement on standard PVC? Or do I have to have a can of the
regular stuff, to put my project together? Just wondering, and really don't
want t screw this up over something so simple...

Thanks,

Dave

Weld-on says this: "Yes. CPVC solvent cement technically will work on PVC piping. However, we recommend that the correct Weld-On primer and PVC solvent cement for the particular application should be used. Please note that PVC solvent cement, because of temperature limitations, is not recommended for CPVC piping."

Oatey, on the other hand, is non-committal. But I suspect that CPVC cement will be OK on PVC, as Weld-on says. On the other hand, Weld-on also says above that PVC cement should not be used with CPVC pipe, but "because of temperature limitations" .. this means that for cold water, it just might be OK too.

And, from what I read online, it seems that if you happen to need to join CPVC and PVC stuff, you could use CPVC cement to do this. YMMV, I'm not an expert with any of this stuff, however.


CPVC and PVC pipes are highly unlikely to be compatible for joining. The
diameters are significantly different.

I am reading that CPVC comes in standard Schedule 40/80 sizes (same sizes as PVC) as well as Copper Tube Sizes (CTS). Home Depot apparently carries some smaller dimensions of CPVC, to be used, for instance, as hot water pipe in home installations.

So many choices. That's a good thing if you know what you're doing.


That would make sense. I've only seen the "copper tube sizes" myself.

On 1/19/19 10:26 AM, Bob F wrote:
On 1/18/2019 9:35 PM, wrote:
On Thursday, November 5, 2009 at 8:38:38 PM UTC-5, Dave wrote:
Can I use CPVC cement on standard PVC?Â* Or do I have to have a can of the
regular stuff, to put my project together?Â* Just wondering, and really don't
want t screw this up over something so simple...

Thanks,

Dave

Weld-on says this: "Yes. CPVC solvent cement technically will work on PVC piping. However, we recommend that the correct Weld-On primer and PVC solvent cement for the particular application should be used. Please note that PVC solvent cement, because of
temperature limitations, is not recommended for CPVC piping."

Oatey, on the other hand, is non-committal. But I suspect that CPVC cement will be OK on PVC, as Weld-on says. On the other hand, Weld-on also says above that PVC cement should not be used with CPVC pipe, but "because of temperature limitations" .. this
means that for cold water, it just might be OK too.

And, from what I read online, it seems that if you happen to need to join CPVC and PVC stuff, you could use CPVC cement to do this. YMMV, I'm not an expert with any of this stuff, however.


CPVC and PVC pipes are highly unlikely to be compatible for joining. The diameters are significantly different.


Wrong about politics, wrong about pipe sizes. Care to try another category?