27 votes

Why doesn't epoxy stick to silicone?

There are two reasons why. First, for any glue to stick to something, that something needs to be wettable by the glue. A cured silicone surface is bristling with uncrosslinked silicone units which ...
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9 votes

Why doesn't epoxy stick to silicone?

Silicone is not a single substance, it is a very very wide range of different types of materials with widely varying properties! All materials that have several siloxane monomers in them can ...
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8 votes
Accepted

How are protective sheets attached to plastics?

The material is called "Electrostatic Protective Film". It is manufactured by letting the plastic film cool in a strong electrostatic field: there are high-voltage electrodes on top and bottom of the ...
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  • 1,835
4 votes

Does the the field of tribology include the study of adhesives?

No, it does not. I do not think that adhesive science people have managed to come up with a fancy name like the lubrication folks.
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  • 4,668
4 votes
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Effect of adhesive on ballistic fabrics

A fast moving projectile has a large amount of kinetic energy. Of course, protecting someone or something from the projectile is all about dissipating as much of that energy as possible before the ...
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  • 113
3 votes
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Temporary spray adhesive to hold two plates together for drilling?

Yes, it would be a nightmare to separate. That adhesive is designed for high strength, temperature resistant applications. That max temp is the point at which it looses it's rated strength. It may ...
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3 votes

Temporary spray adhesive to hold two plates together for drilling?

Two flat metal plates can be stuck together just by a thin layer of grease. Then work to be drilled needs clamping anyway.
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  • 13.9k
3 votes
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Can Krazy Glue be used as a sealant?

Where a cable enters a connector is a point strain, point strains are remarkably prone to failure. I would not use glue at all particularly a rigid glue like super glue. I would use dental floss or ...
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  • 206
2 votes
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How strong is the adhesion between UHMWPE Fiber and Epoxy Resin?

I am not a chemist or material scientist, but it is my experience that reliable adhesion to a smooth Polyethylene surface is nearly impossible even with "plastic" rated epoxy. However where it is a ...
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  • 7,469
2 votes
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Glue plastic to glass with chance for easy removal later

Because the surface is a windshield and because you wish to have it somewhat removable, consider Solar Mike's suggestion of double sided tape, but add in a parameter for outdoor use. 3M makes a great ...
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  • 6,192
2 votes

Can Krazy Glue be used as a sealant?

A quick search of PVC, the main coating for most cables, corrosion information turns up some answers: Cyanoacrylate, the main component of Krazy glue is not listed in most corrosion guides. Acrylates,...
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  • 5,303
2 votes
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How would you seal a hole in an HDPE container that's in -20C environment

Bonding to HDPE is very difficult. A few adhesives developed fairly recently do ok in some applications, but that kind of cooling will likely cause them to fail. Instead, I'd recommend a mechanical ...
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2 votes

Effect of adhesive on ballistic fabrics

Fabric based ballistic projection works by distributing load of it's force, kinetic energy perpendicular to it's direction. Adhesives are already in use for bonding such fibers. Adhesives act to ...
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2 votes

What Are The Recommended Binding Methods For A Carbon Fibre Chassis Frame?

Cool that you're considering CF, it's a fun material. So first, to answer your questions. If done right it can be fine, but even then it's the least preferable (in my opinion) way to bond FRPs (Fiber ...
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1 vote
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What Are The Recommended Binding Methods For A Carbon Fibre Chassis Frame?

This is Work-in-progress How does drilling holes into carbon fibre affect its structural integrity? Drilling holes into carbon fibre has very adverse affects. The main reason is that usually the ...
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  • 22.6k
1 vote

How would you seal a hole in an HDPE container that's in -20C environment

Try this stuff. It's about as good as it gets off the shelf. 3M™ Scotch-Weld™ Structural Plastic Adhesive DP8005
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  • 3,425
1 vote

Describe the magnitude of a force using real-life comparisons instead of numbers

You could get 3 compression springs for your 1/2/3 levels of tip. Very high spring rate for #1, medium for #2 and low for #3, depending on what you need. The limit could be once you fully compress the ...
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  • 2,402
1 vote

Does outgassing, of adhesives, stop when the cure time is reached

It would depend on the precise mechanism of cure. If the Gibbs energy crosses the zero line and reaction stops, then yes, outgassing will also likely cease. If however, the reaction is limited by the ...
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1 vote

Does outgassing, of adhesives, stop when the cure time is reached

Almost all chemical processes slow down as you have less chemicals that can react. Same is true for CA glue. As it reacts with water, it becomes harder and less permeable to water and itself. You can ...
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1 vote
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Adhesion of Super Glue (containing ethyl cyanoacrylate) and PVDF (polyvinylidene fluoride) film

The issue is not one of safety; it is just that PE, PP and PVDF are almost impossible to get anything to stick to, including glue. It is doubtful that crazy glue would work on it. you can try latex-...
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1 vote

Bonding PVC Cables To Metal Housing

the way this is usually accomplished in practice is to use a zip tie anchor which consists of a plastic square with a loop in it through which a zip tie can be threaded. the bottom surface of the ...
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1 vote

Which glue is good for transparent ABS plastic and easy removal?

You can try ARclear optically transparent adhesives made by Adhesives Research Inc No guarantees though, you will have to experiment to get what you want, of course. :-)
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1 vote

Need electrostatic material to attract pet hair

Installing enough electrostatic material on your floor will be significantly more work than having a handheld device that you can use to brush off your shoes. This device appears to use electrostatics ...
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1 vote

How would you seal a hole in an HDPE container that's in -20C environment

I suggest buying extra caps/stoppers and drill a close-fitting hole. If the caps (and your probe/wires can take it), perhaps use some hot-melt glue for a mechanical seal.
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  • 161
1 vote

What is the best heat and moisture resistant adhesive?

You want to look at high temp RTV silicone adhesives. They can handle temps way above 100c. Typically found and used as make-a-gasket material on engines and commonly found at automotive stores. ...
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  • 1,578
1 vote
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Mating a round surface with a flat surface

Without knowing more about your requirements here are some options: "Permanent" options: Try a two-part epoxy designated for plastics. Using sandpaper, like 120 grit, to roughen the surfaces helps ...
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  • 1,578
1 vote

Can Krazy Glue be used as a sealant?

You can use cyanoacrylate but I would use a "toughened" super glue that has a rubber modifier in its chemical formula to make it less brittle. Also , super glue vapors have a tendency to blush ...
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1 vote

Do adhesives have a minimum thickness (bond line) to be useful?

It will depend on the type of glue you will use Super glue (cyanoacrylate adhesives) requires very thin bond line and their final strength weakness as the bond line thickness increases. 2K Adhesive ...
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1 vote

Do adhesives have a minimum thickness (bond line) to be useful?

Polymers Physical Properties states "Joints made with smaller bond lines are epoxy-starved and have lower strengths." I am not a chemist, but there is some physical amount of space required for the ...
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  • 7,469

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