HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
REGISTER   |   LOGIN   |   HELP
Blogs
Guest Blogs
Design Decisions: An Update on Instant Adhesives
9/11/2012

Instant adhesive provides an extremely strong bond in seconds on close-fitting parts.
Instant adhesive provides an extremely strong bond in seconds on close-fitting parts.

Return to Article

View Comments: Oldest First|Newest First|Threaded View
Rob Spiegel
User Rank
Blogger
Strong enough for airplanes
Rob Spiegel   9/11/2012 2:28:47 PM
NO RATINGS
It's amazing how far adhesives have come, Robert. I was surprised to discover adhesives are used to hold airplanes together. When asked how reliable these adhesives were, I was told that in many cases, the material held together by the adhesive is more likely to tear than the adhesive joint.

Tim
User Rank
Platinum
Great combination
Tim   9/11/2012 9:08:12 PM
NO RATINGS
Adhesives with a long open time and an instant bond seem to be a great combination.  Instant adhesives that stay flexible also seem to be a versatile tool in adhering components.  I look forward to using some of these items in future projects. 

gwilki
User Rank
Iron
Compatibility
gwilki   9/12/2012 9:23:30 AM
NO RATINGS
As an end user of CA glues, and a woodworker, the advances in this area fascinate me. The biggest issue that I and others have had and continue to have with CA glues is that it is difficult or impossible to know which formulation will serve in a particular application. Claims by manufacturers seem to be exaggerated, or at least, only true in controlled situations.

A specific example is the need to bond aluminum or brass to wood or acrylic.

Another issue seems to be shelf life of the opened product and the best way to store opened product. The success of the bond created by CA glues seems to be very dependant on how old the glue is, and how it was stored, once opened.

ungarn
User Rank
Iron
Re: Compatibility
ungarn   9/12/2012 10:55:17 AM
NO RATINGS
You might want to try Pacer RX series instant adhesives for your application, or Loctite 406, 401, and 454.  Substrates must be clean prior to application...wipe with acetone followed by alcohol as an example.  There also must be sufficient moisture on the surface for CA's to work.  Problems can arise < 20% and > say 75% relative humidity.  Good clamp force and thin bondline is key to CA.  Keep your unopened CA in the refrigeraor, and use within a week if at all possible after opening.  After 3 weeks I would suggest a new bottle.  Hope this helps!

 

gwilki
User Rank
Iron
Re: Compatibility
gwilki   9/12/2012 11:06:34 AM
NO RATINGS
Tks much, Ungarn. I've tried pretty much everything that you mentioned, with mixed results. I will look for the products you recommended. Cleaning and clamping are not an issue. A 3-week shelf life is tough, though. I don't go through even a 2 oz bottle in an average 3 week period. That may well be my problem.

I do put opened bottles in the fridge, but I've always found that a bit contradictory. As you pointed out, CA needs moisture to set up well. And yet, we put an opened bottle into a very moist atmosphere to store it.

Tks again.

bobjengr
User Rank
Platinum
LOCTITE
bobjengr   9/15/2012 3:11:30 PM
NO RATINGS
Robert, this is not meant to be an advertisement but, one company I consult for uses Henkel products exclusively, specifically 332 Acrylic and 5600 two-part silicone RTV.  I can certainly attest to the fact that those adhesives do the job and have reduced our assembly costs substantially.  Relative to your blog, it amazes me as to the number of custom products available through Loctite/Henkel.  We have found these adhesives meet all of the mechanical and structural specifications our clients have mandated and in some instances exceed those requirements.  In all fairness, there are some assemblies that require fasteners that remain operational with temperatures around 650 degrees F.  For these applications we still use conventional methods to hold components together but, with improved materials, there are not too many applications that cannot use adhesives. 

Partner Zone
More Blogs from Guest Blogs
Connected sensor-enabled applications will improve the consumer experience -- and generate new revenue streams.
As an industry, we now need to up our game and provide contractors with easier ways to properly identify and report counterfeit products and build collaboration between manufacturers, design engineers, industry organizations, and government.
Itís your job to find the right people, ask the right questions, to dig deeper, and properly prepare your users so they can provide you the most useful and productive answers possible.
The shift to aluminum is gaining momentum and the demand from automakers for aluminum is soaring, "expecting to reach one billion pounds this year, up from 200 million in 2012, and to grow by more than 30% annually through 2020."
Einstein in a Box inspires critical thinking with the actual doing and experiencing. They take the statement "inquiring minds want to know" to a whole new level.
Design News Webinar Series
3/27/2014 11:00 a.m. California / 2:00 p.m. New York / 7:00 p.m. London
2/27/2014 11:00 a.m. California / 2:00 p.m. New York / 7:00 p.m. London
12/18/2013 Available On Demand
11/20/2013 Available On Demand
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Apr 21 - 25, Creating & Testing Your First RTOS Application Using MQX
SEMESTERS: 1  |  2  |  3  |  4  |  5


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Next Class: April 29 - Day 1
Sponsored by maxon precision motors
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Copyright © 2014 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service