Description   Epoxy adhesives are very common thermoset adhesives used in a wide variety of applications.   Understanding Epoxy Adhesives   Epoxy adhesives are composed of epoxy resins. All epoxies are formed as a result of the reaction between an epoxide and a polyamine hardener; for this reason epoxies are often referred to as copolymers. Epoxy adhesive systems may or may not include chemical modifiers. Unmodified epoxies cure to hard, brittle solids, while other...
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Q & A on Epoxy Adhesives

We asked our users for their input on Epoxy Adhesives. Here are the results of 132 users familiar with Epoxy Adhesives.

Who Took Our Poll? | Design Trends | Applications and Use | Features | Buying Advice |

Who Took Our Poll?Top

Design TrendsTop

Q:
What new technologies are influencing epoxy adhesive design?
16 answers
Answers:
Excellent resistance to high temperatures Excellent resistance to chemicals, fuels, oils, ... High resistance to shock and lupenje allows great freedom in designing Good adhesion to many engineering materials such as metals, composites, plastics, wood There is no need for weighing or mixing glue components Persistence of adhesives to use various different materials Speed ??networking / drying increases the speed of production Safer working environment for non solvent content Odorless for a more friendly work environment
~Kosta Cirkovski, Tv service locksmith tools, Maribor, Slovenija
New technologies are being used all the time in the water sports field and with the extra waterproofing applications that these components require; especially at the manufacture stage where longevity and wear become more important.
~Alistair C, Director, Edinburgh, United Kingdom
Some seemed to have even more strength. But they are only available for industrial use. I wonder, if epoxy can have the choice of character such as shock absorbing ----- etc.
~Kinetorori I, Kinetic Sculptor / Kinetic designer / Electronic engineer, London, UK
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Q:
From your perspective, which companies are creating the most innovative epoxy adhesives?
16 answers
Answers:
Polymer epoxy in Philippines. Very little choice available in Philippines. I use only a small amount.
~Fil A, Hobbyist, Caloocan city, Philipppines
In the retail market in Australia we don't have the luxury of enough choice to form an opinion.
~John H, Purchaser, Melbourne, Australia
Ciba? Unibond ----- though I haven't tested all of their products.
~Kinetorori I, Kinetic Sculptor / Kinetic designer / Electronic engineer, London, UK
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Applications and UseTop

Q:
What are some of the applications you have used epoxy adhesives for?
34 answers
Answers:
Climbing equipment design and manufacture, masonry repair, 'in field' kit repair. Design and manufacture of models and maquetes. I wrote the British Mountaineering Club handbook section on repairs in field and included advice for up to 3 different brands of widely available epoxy's for different applications.
~Engineering, Consulting, New brighton, United Kingdom
1. PC7 or J-B Weld with 318 course stainless steel wool mixed in, to mount 1/4-20 inserts in "bottomless" holes in concrete and brick columns. 2. JB-Weld to fill in holes where rusted 1/4-20 set screws had to be ground out with a Dremel tungsten-carbide burr. The holes were then re-drilled and re-tapped.
~Howard G M, Technical Support, Oldsmar, FL
Epoxy adhesive can be used not only as a glue to fix. It can be used as to form a shell while spread over a plaster with glass fiber ( then remove the forming) or to use it to shape exact angle while filling the gap in a temporally structure etc.
~Kinetorori I, Kinetic Sculptor / Kinetic designer / Electronic engineer, London, UK
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Q:
Please share with us any “non-standard” applications that epoxy adhesives have been used for.
10 answers
Answers:
Take a cast from broken plastic parts (with waxy coating) and from its cast, re-make the parts. While repairing the broken machine, use epoxy to find the exact position of the bearing (while the shaft is rotating and epoxy is re-heated and made the bearing to settle into a metal box ------ once hardened, then reinforce the fixture of the bearing).
~Kinetorori I, Kinetic Sculptor / Kinetic designer / Electronic engineer, London, UK
Fuel tank repair with standard Araldite is not recommended but worked well with adequate mixing and with heat applied throughout the curing time. Polycarbonate spectacle lenses: easy to get an invisible joint line but difficult to control overspill on the surface.
~John H, Purchaser, Melbourne, Australia
Bounding foldable flooring together for inflatable water craft.
~Timothy M, Retired builder, Grangeville, ID
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Q:
Do you know of any disastrous mistakes that occurred due to the incorrect usage of epoxy adhesives?
10 answers
Answers:
If it was used somewhere in electric----- epoxy melted when electric component heated up which is not expected ----- as the parts moved and made short-circuit and so on.
~Kinetorori I, Kinetic Sculptor / Kinetic designer / Electronic engineer, London, UK
Careless application with dust, improper curing, improper maintenance of products.
~Krishnamoorthi N, Service Manager in tractor workshop., Coimbatore, India
Fishing reels while attached to reel seats being ripped from large game fish rods.
~Timothy M, Retired builder, Grangeville, ID
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FeaturesTop

Q:
What would your design or feature "wish list" be for this product?
18 answers
Answers:
A high refractive-index water clear resin that could be wiped on and smoothed off to fill scratches in plastic lenses (spectacle, vehicle lamps, luminaires). This might include a non-adhesive film to lay over the resin during spreading of the resin and curing to allow smoothing down the resin without dragging it, but easily peeled afterwards. Film would need to be rigid enough to sit flat over the scratches but elastic enough to sit down on the curved surface of the lens without puckering
~John H, Purchaser, Melbourne, Australia
Make it less/or not attractive to bugs! When applied at temperatures over 70 degrees Fahrenheit, all types of bugs are attracted to the material, presumably because it is manufactured of soybeans, beans and peanuts, and the bugs are searching for food. Maybe something that makes it unattractive to bugs - yet doesn't impact its properties - could be used as an additive.
~Philip E., Builder/Contractor, Atlantic City, NJ
Highest possible thermal resistance under dynamic load conditions. This is the major factor , that limits the use of "cold cured" adhesives in dynamic load applications (these are conditions often observed in industrial brakes and clutches applications).
~General Corporate Mgmt, Gdansk, Poland
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Buying AdviceTop

Q:
Do you have any advice for people relative to buying or using epoxy adhesives?
14 answers
Answers:
Mix only the quantity that you can easily apply in half the time recommended - nothing EVER goes as-planned, so give yourself more than enough time to work with the product before it begins to set.
~Philip E., Builder/Contractor, Atlantic City, NJ
First they should study the literature of the product and choose the right adhesive for right application.
~Krishnamoorthi N, Service Manager in tractor workshop., Coimbatore, India
Don't waste time and money on cheap adhesives and don't buy quick-set if you want good grip strength.
~John H, Purchaser, Melbourne, Australia
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Q:
Is there any advice you want to share with users to help them avoid common errors in selection or usage of epoxy adhesives?
14 answers
Answers:
I think that it is essential to maintain the temperature for curing as this could affect the success or failure of any epoxy adhesive test. This includes ambient temperature, (direct) sunlight, curing times and proper mixing.
~Alistair C, Director, Edinburgh, United Kingdom
Don't rub it in to something you didn't want it to stick to, take it off when it has set. This works only if the item has a finish or oily and wax coat to it.
~Jason B, Well i use it in my hobby making gemstone flowers, Sabden, U.K.
Peel strength is poor; design with lap shear strength at use temperature of the epoxy, thermal cycling performance is a key design criteria.
~Engineering, Consulting, Bangalore, India
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