CrazyEngineers Archive
Old, but evergreen and popular discussions on CrazyEngineers, presented to you in read-only mode.
@zaveri • 10 Nov, 2012 • 1 like
I hope all of you are aware of a particular adhesive , under the brand name "fevibond", made by the manufacturers of fevicol.

now when, fevibond is applied on thermocol, the latter, deteriorates in a matter of seconds, as if being corroded by acid.

now i am curious to know whether this is some kind of acid-base reaction, or some kind of kind of endothermic reaction, from which the heat melts thermocol.
@rahul69 • 10 Nov, 2012 Well, Thermocol is foamed Polystyrene, which can be dissolved in organic solvents☕,I think Adhesives like Fevibond , Feviquick etc. contains Toluene which is an organic solvent, and thus it dissolves Thermocol😎
@Kaustubh Katdare • 10 Nov, 2012 zaveri - Interesting observation, mate. Not sure of the chemical composition of fevicol and fevibond. Let me mark bioramani if he knows more about the compositions.

rahul69 : I searched the Internet a bit; couldn't find any link to chemical composition of these adhesives. Is toluene a common component of most of the adhesives? Fevicol, works perfectly fine with Thermocol though.
@Jeffrey Arulraj • 11 Nov, 2012 Fevibond is more of a rubber adhesive in liquid form unlike Fevicol which is not entirely a rubber colloid

So the dispersal agent in FeviBond dissolves the thermocol
@Ramani Aswath • 11 Nov, 2012 • 3 likes Thermocol is polystyrene foam with a porosity of about 98%. It is very soluble in many organic solvents.
Fevibond is an organic solvent based rubber adhesive.
This dissolves thermocol easily, especially as the foam is 98% air and has very little polymer.

Fevicol is a water based polymeric resin adhesive, which does not affect Thermocol.
@rahul69 • 11 Nov, 2012 • 1 like The_Big_K sir here is the link for feviquick composition:https://wiki.answers.com/Q/What_is_the_content_of_feviquick

and for Toluene, its applications are given in wiki: https://en.wikipedia.org/wiki/Toluene#Uses 😀
@zaveri • 11 Nov, 2012 well as far as melting thermocol is concerned, i guess the same thing goes for Anabond.

by the what is the difference between fevikwik, and fevibond. and anabond ? all of them are super glues according to the layman.
@Ramani Aswath • 11 Nov, 2012
zaveri
by the what is the difference between fevikwik, and fevibond. and anabond ? all of them are super glues according to the layman.
SUperglues or instant adhesives are cyano acrylate based. Fevibond is solvent based rubber adhesive. It sis not a so called 'super glue'.
@Jeffrey Arulraj • 11 Nov, 2012 Rubber adhesives are different from Super glues Fevi bond is a rubber based glue but Fevi Quick is a super glue
@Sandeep NE • 20 Jul, 2013 i need to stick styrofoam to a pvc pipe.. what would be the best adhesive available in Indian market for this?.. i have tried fevicol, it didnt work well..

the guy at the hardware showed me another Pidilite product and Araldite...

i wanted to get back and try researching before i bought something.. araldite is apparently not good for sticking polypropylene things, so, would it be any good for polystyrene?
@Jeffrey Arulraj • 20 Jul, 2013 https://www.thistothat.com/cgi-bin/glue.cgi?lang=en&this=Styrofoam&that=Vinyl

Hey man I think these alternatives are really a boon to sticking stuff

Worth a try

But availability in Indian Market is not shown in the site
Sandeep NE
i need to stick styrofoam to a pvc pipe.. what would be the best adhesive available in Indian market for this?.. i have tried fevicol, it didnt work well..

the guy at the hardware showed me another Pidilite product and Araldite...

i wanted to get back and try researching before i bought something.. araldite is apparently not good for sticking polypropylene things, so, would it be any good for polystyrene?
@Sandeep NE • 20 Jul, 2013 thanks for the quick reply man! i wish atleast one hardware shop guy was this fast! 😁

yeah there are many results on the internet..some say gorilla glue.. some say loctite..

most things im coming across have this written on them..

"Recommended For

Repairing figurines, costume jewelry, cameras, toys, metal car parts, wiper blades, rubber seals and O-rings
Bonding leather, cork, paper, cardboard, wood, chipboard, fabric, metal, ceramic, rubber and hard plastics such as Plexiglass™, polycarbonate, polystyrene and PVC
Ideal for vertical surfaces



Not Recommended For

Glazed surfaces
Styrofoam, foam rubber, pure bone china, glass, silicone rubber, PTFE, polyethylene and polypropylene
Exterior applications
Use on repairs needing high flexibility or for gap filling applications
Use in dishwasher, oven or microwave"


im just hoping to find something tho...

apparently loctite has some products... if anyone has any eperience in this please share the gyan!... thanks!!
@Sandeep NE • 20 Jul, 2013 styrofoam is polystyrene isnt it?!.. it is shown in both recommended and not recommended list

the thing i want to stick is a 6mm sheet of styrofoam...the flexible (like cloth) type that we get in electronic gadget and appliances packaging ...(not the thermacol that breaks)
@Ramani Aswath • 20 Jul, 2013
Sandeep NE
styrofoam is polystyrene isnt it?!.. it is shown in both recommended and not recommended list

the thing i want to stick is a 6mm sheet of styrofoam...the flexible (like cloth) type that we get in electronic gadget and appliances packaging ...(not the thermacol that breaks)
I very much doubt if the product you are talking about is styrofoam. There is no flexible styrofoam tomy knowledge. It is most likely to be polyethylene foam. Looks like styrofoam. You can use araldite for this. Just emery the pvc surface. If you have a hot air blower (hair dryer) blow hot air on both surfaces to be bonded (this helps to activate polymer surfaces for better adhesion with araldite), smear a thin layer of araldite on both and press together. Keep undisturbed for 24 hours unless you are using a quickset version of araldite. Use adhesive tape to secure the joint till it sets.
@Jeffrey Arulraj • 20 Jul, 2013 Because people have a need to glue things to other things

Attach to
Styrofoam to Vinyl
For the strongest, least toxic bond we recommend:
but remember to put the glue on the vinyl first, then contact it to the styrofoam
For large areas we recommend:
[​IMG] Styrofoam is a plastic that has been whipped up like a milkshake and then cured that way. That's what makes it light. Like plastic, there are many different formulas for styrofoam. They may contain any combination of styrene, urethane, neoprene or vinyl. For this reason choosing the correct adhesive is not easy. For our tests we used polystyrene which is a composition of styrene, chlorodifluoroethane and ethyl chloride, for those of you who care. The most important things to remember when choosing an adhesive for styrofoam are:
  • Never use an adhesive that contains a solvent. It will erode the styrofoam releasing all sorts of toxic fumes
  • Choose adhesives that are suited for not porous materials (remember styrofoams are plastics and plastics are non-porous)
  • Never use hot glue directly on to styrofoam. There are some cases when hot glue is an appropriate adhesive, but it should be applied to the material you are bonding the styrofoam to and left to cool a few seconds before contacting the styrofoam. The glue will get lost in the hole that it has burned, and burning plastics releases toxic fumes.
  • Remember, a glue is only as strong as the weakest material in the union. Styrofoam is easily broken and has very little tensile strength. In our tests, if the styrofoam broke before the bond, the glue was considered strong enough.
Source: Thistothat.com
@zaveri • 20 Jul, 2013
Sandeep NE
i need to stick styrofoam to a pvc pipe.. what would be the best adhesive available in Indian market for this?.. i have tried fevicol, it didnt work well..

the guy at the hardware showed me another Pidilite product and Araldite...

i wanted to get back and try researching before i bought something.. araldite is apparently not good for sticking polypropylene things, so, would it be any good for polystyrene?

try m-seal.
@Ramani Aswath • 20 Jul, 2013 m-seal is now a Pidilite product. Originally a Mahindra product. It is also an epoxy based adhesive.
@Sandeep NE • 20 Jul, 2013 thank you for the correction sir!... i shall try what you have suggested..

THANK YOU 😀 !!
@Gagan Singla • 28 May, 2015 I need to fix my torn headphone cusion(Its made of either raxin or leather). Which one is better. Fevibond or fevikwik?
@Ramani Aswath • 28 May, 2015 Epoxy (Araldite two component type) is a safer option as it does not react with the surface in contact. Fevikwik is an anaerobic instant adhesive. Can be used if you are careful and can apply it exactly where wanted because it sets in seconds and errors cannot be corrected.
@Gagan Singla • 28 May, 2015 What about fevi bond? I just have to put it on the cusion part so as to avoid further tear.
@Ramani Aswath • 28 May, 2015 Fevibond is a rubber based adhesive. It has a solvent carrier. If your cushion is compatible with the solvent Fevibond can be used.
@Uz-Air • 27 May, 2016 What is the best Wood to Wood glue in Indian Market ? I mean the strongest, doesn't matter if it takes some time to set in.
@Uz-Air • 27 May, 2016 What is the best wood to wood glue available in Indian market ? I mean the strongest one, even though it takes some time to set in.
@Ramani Aswath • 27 May, 2016 Epoxies give permanent, waterproof joints.
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