Previous in Forum: Remote Control of MCCB (Molded Case Circuit Breakers)   Next in Forum: A Medical First
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
11 comments
Rate Comments: Nested
greasy
Associate

Join Date: Jan 2015
Posts: 43

Resorcinol Catalyst

10/13/2016 11:32 AM

This early 2-component waterproof glue was used effectively to build wooden-framed aircraft among countless other things. Present-day makers jealously guard control of it. I have a quantity of the resin but no catylist. Anybody know what could be used? Thanks
Register to Reply
Pathfinder Tags: catylist glue
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Good Answers:

These comments received enough positive votes to make them "good answers".
2
Rixter
Guru

Join Date: Apr 2010
Location: About 4000 miles from the center of the earth (+/-100 mi)
Posts: 9912
Good Answers: 1141
#1

Re: Resorcinol catylist

10/13/2016 12:06 PM

Maybe this?

http://www.nightingalesupply.com.au/PDF/Tech_data_adhesves/R15%20RESIN-GRASP%20RP51H%20%20%20%20%20%20%20%20%20Orica%20.pdf
Register to Reply Good Answer (Score 2)
Go to Next Good Answer
2
Mikerho
Guru
Hobbies - Musician - Engineering Fields - Chemical Engineering - New Member Engineering Fields - Control Engineering - New Member Engineering Fields - Instrumentation Engineering - New Member

Join Date: Jan 2007
Location: Moses Lake, WA, USA, Thulcandra - The Silent Planet (C.S. Lewis)
Posts: 4216
Good Answers: 194
#2

Re: Resorcinol catylist

10/13/2016 1:01 PM

Info on the glue:

https://en.wikipedia.org/wiki/Resorcinol_glue

http://www.christinedemerchant.com/adhesive-glue-resorcinol.html

Have you checked the resin to make sure it hasn't hardened? I gleaned that it doesn't have a very long shelf-life.

Talk to these suppliers:

http://www.cpadhesives.com/adhesive-solutions#resorcinol]

http://forum.woodenboat.com/showthread.php?67683-cascophen-any-info

__________________
 "Reason is not automatic. Those who deny it cannot be conquered by it. Do not count on them. Leave them alone." - Ayn Rand
Register to Reply Good Answer (Score 2)
Go to Next Good Answer
2
James Stewart
Guru
Safety - Hazmat - New Member United States - US - Statue of Liberty - New Member Engineering Fields - Chemical Engineering - Old Hand

Join Date: Mar 2011
Location: Lubbock, Texas
Posts: 14331
Good Answers: 162
#3

Re: Resorcinol Catalyst

10/13/2016 3:51 PM

You could try buying some para-formaldehyde, but that is hard to come by.

paraformaldehyde

If you take formaldehyde liquid, and store it cold, the paraformaldehyde polymerization results in a white residue at the bottom of the container. Cold storage is recommended. I have no idea how long it might take to arrive at a suitable product.

Methanol (small amounts is needed to control the extent of polymerization to the number of units desired.

Personally, unless you have a tremendously large amount of the resin, I would start over with a new kit. I was not aware this was sold to individuals within the United States due to the carcinogenicity of formaldehyde decomposition product.

__________________
 If it ain't broke, don't fix it. Just build a better one.
Register to Reply Good Answer (Score 2)
No more Good Answers.
greasy
Associate

Join Date: Jan 2015
Posts: 43
#4

Re: Resorcinol Catalyst

10/13/2016 10:24 PM

Thanks to all 3 fellows who offered info. All were helpful. In the last analysis the shelf-life proved decisive. It's much, much older than that, thu not yet hardened. Not worth the risk of failure, given what's involved. Thanks again for the help!
Register to Reply
Mikerho
Guru
Hobbies - Musician - Engineering Fields - Chemical Engineering - New Member Engineering Fields - Control Engineering - New Member Engineering Fields - Instrumentation Engineering - New Member

Join Date: Jan 2007
Location: Moses Lake, WA, USA, Thulcandra - The Silent Planet (C.S. Lewis)
Posts: 4216
Good Answers: 194
#5
In reply to #4

Re: Resorcinol Catalyst

10/14/2016 4:23 AM

Hey, not a problem!

I used this type of adhesive when I made my hammered dulcimer. It is a great adhesive for joining tight-tolerance wood joints!

It would be interesting to know how you fare in your search for the adhesive and how you're going to use it.

Welcome to CR4!

__________________
 "Reason is not automatic. Those who deny it cannot be conquered by it. Do not count on them. Leave them alone." - Ayn Rand
Register to Reply
greasy
Associate

Join Date: Jan 2015
Posts: 43
#6
In reply to #5

Re: Resorcinol Catalyst

10/14/2016 12:43 PM

A hammered Dulcimer! How cool! In the closing days of Nazi Germany they built a "flying wing" (as in today's stealth bomber) put of plywood using this glue.It as a "Horton" and was jet-powered!! Thanks for the welcome!
Register to Reply Off Topic (Score 5)
C-Mac
Guru

Join Date: Jun 2008
Posts: 859
Good Answers: 33
#7
In reply to #5

Re: Resorcinol Catalyst

10/14/2016 1:41 PM

We totally rebuilt a 40' offshore catamaran, built in the 50's, with resorcinol... Sailed it for over 2 years when we had it, in some very challenging conditions (storm warnings, twice), with no delamination or failures.All marine grade plywood, and lots of glue. What a mess, if allowed to get outside of areas not intended for use, as well as leaving some marked stains on one's hands....Good stuff, if allowed to fully saturate the substrate, and to make sure of no dry contact spots due to premature absorption of the glue into the wood. Also, read about and understand the size of gaps allowed (or if one can use fillers for large gaps), and pay attention to the clamping schedule recommended.
Register to Reply
Dragon113
Associate

Join Date: Feb 2015
Location: Canada's West Coast , Pacific.
Posts: 34
#8

Resorcinol Catalyst

12/24/2016 11:23 AM

Bet yer Bucket , Bob . Formaldehyde . Phenol Formaldehyde Resorcinol .

2 part , maybe . 3 part , much more likely . Resin is used as wood to wood F.A.A. Approved adhesive and is Commercially available at present. You are absulutely correct , this is a closely guarded secret . It's been one since Cleopatra had barges .

DRAGON BLOOD , the Romans called it , because it's red .

I buy mine through CHEMPOINT , an Oregon based Company . PRF Cascophen 75 LT .

__________________
 Steele113
Register to Reply
James Stewart
Guru
Safety - Hazmat - New Member United States - US - Statue of Liberty - New Member Engineering Fields - Chemical Engineering - Old Hand

Join Date: Mar 2011
Location: Lubbock, Texas
Posts: 14331
Good Answers: 162
#9
In reply to #8

Re: Resorcinol Catalyst

12/27/2016 11:03 AM

I wonder where the Romans sourced their chemicals to make this glue? Any links on the history of that?

__________________
 If it ain't broke, don't fix it. Just build a better one.
Register to Reply
greasy
Associate

Join Date: Jan 2015
Posts: 43
#10
In reply to #9

Re: Resorcinol Catalyst

01/09/2017 3:50 PM

yes, that would certainly be my question. And why the 2 or 3-part distinction. Is the phenol sometimes added before sale? Is that why shelf life can be limited to a few months or in other cases much, much longer.
Register to Reply
PWSlack
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#11
In reply to #9

Re: Resorcinol Catalyst

01/09/2023 11:36 AM

Probably on Amazon or Alibaba.

__________________
 "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Register to Reply
Register to Reply
Have a Different Question?
11 comments

Good Answers:

These comments received enough positive votes to make them "good answers".
Copy to Clipboard

Users who posted comments:

C-Mac (1); Dragon113 (1); greasy (3); James Stewart (2); Mikerho (2); PWSlack (1); Rixter (1)

Previous in Forum: Remote Control of MCCB (Molded Case Circuit Breakers)   Next in Forum: A Medical First

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
General Discussion:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (57 right now)
Show Members
Advertisement