Help: Bonding Polypropylene with PVC Pipe - The Planted Tank Forum
 
LinkBack Thread Tools Display Modes
post #1 of 7 (permalink) Old 04-22-2015, 10:03 PM Thread Starter
Algae Grower
 
PTrader: (0/0%)
Join Date: Jun 2011
Location: Phoenix, Arizona
Posts: 43
Help: Bonding Polypropylene with PVC Pipe

Would you recommend plastic cement or pvc primer and cement to bond the two?

I am trying to build a cerges reactor and the inside tube is pvc connecting to a polypropylene filter cap.

I only have one shot and don't want to mess it up.

Thanks!
prp427 is offline  
Sponsored Links
Advertisement
 
post #2 of 7 (permalink) Old 04-22-2015, 11:07 PM
Planted Tank Obsessed
 
PTrader: (0/0%)
Join Date: Jan 2014
Location: Denver, CO
Posts: 400
the multipurpose pvc cement should work just fine, its inside the housing so leaking is no concern.. you just want to hold it in place so it dont fall out right? its sticking to the PP that is the problem, could sand it lightly to give better adhesion.

actually bonding the two would require an epoxy I suspect.. Polypropylene is practically impermeable and hard to bond anything with.

Gorilla Glue might work, its basically liquid polypropylene and would expand to give a good fit.. it wont create a watertight seal, but it should hold em together if you rough up the plastics.. forming a nice friction fitting.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

5 Gal Tropic Nano w/SunSun 603b,
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Last edited by nayr; 04-22-2015 at 11:22 PM. Reason: gorillaglue
nayr is offline  
post #3 of 7 (permalink) Old 04-22-2015, 11:39 PM
Wannabe Guru
 
Dead2fall's Avatar
 
PTrader: (4/100%)
Join Date: Jun 2014
Location: Nj
Posts: 1,137
Silicone.

Or just buy a tube you have to stuff in there. There's no pressure behind it so it'll stay in there. Makes it easier to pull out and clean too. The eheim 534 tubing fit my filter housing head like it was made to be jammed in there.
Dead2fall is offline  
 
post #4 of 7 (permalink) Old 04-23-2015, 03:22 PM Thread Starter
Algae Grower
 
PTrader: (0/0%)
Join Date: Jun 2011
Location: Phoenix, Arizona
Posts: 43
I would assume that I would need a air tight seal. Since co2 bubbles will be churning right next to the joint, any bubbles getting through would defeat the purpose of the cerges reactor.

I have a pvc coupling that fits pretty snug. I have read a suggestion to boil the pvc and ram it in there. Would that process seal it?
prp427 is offline  
post #5 of 7 (permalink) Old 04-23-2015, 04:14 PM
Wannabe Guru
 
Dead2fall's Avatar
 
PTrader: (4/100%)
Join Date: Jun 2014
Location: Nj
Posts: 1,137
Don't worry too much about an airtight seal. As long as you have something jammed in there with no gaps it'll be OK. Mine puts out 0 bubbles and it's just tubing jammed in there.
Dead2fall is offline  
post #6 of 7 (permalink) Old 04-23-2015, 04:20 PM Thread Starter
Algae Grower
 
PTrader: (0/0%)
Join Date: Jun 2011
Location: Phoenix, Arizona
Posts: 43
Okay, thanks I'll try that. I might put a thin bead of silicone too just for safe measure.
prp427 is offline  
post #7 of 7 (permalink) Old 04-23-2015, 09:31 PM
Wannabe Guru
 
Dead2fall's Avatar
 
PTrader: (4/100%)
Join Date: Jun 2014
Location: Nj
Posts: 1,137
Like I said, then it's a pain to pull the dip tube out if/when it's time to clean it
Dead2fall is offline  
Reply

Tags
None

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the The Planted Tank Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome