Epoxy Vs Methacrylate adhesives

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Epoxy Vs Methacrylate adhesives

Epoxy Vs Methacrylate adhesives

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Massimiliano	M Massimiliano posted 5 Years Ago HOT Topic Details
M Group: Forum Members Posts: 167, Visits: 1.1K	Hi, in general, when it is better to use one or another? On my specific case, I need to bond stainless steel to carbon fiber panel. Appearance is not important. The bond has to resist pull force, pull shocks, salt water. UV resistance is desired but the part could be coated for UV protection so no big deal. Thanks Massimiliano
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Massimiliano	M Massimiliano posted 5 Years Ago HOT Post Details
M Group: Forum Members Posts: 167, Visits: 1.1K	+x torsten Ker - 10/27/2020 11:34:54 AM hah, that looks a bit differnet to what I imagined reading the initial post,that is quiet a small surface area to bond and that really depends on the force you expect. Epoxy used to laminate of infuse is definetly not a choice, aircraft grade epoxy glue is too expensive and I would test the MMA You may have to resort to a mechanical solution having a backplate and rivets or bolts trough the carbon, that depends on teh core if you use any Hi, size of the base will be 100 x 80 mm. The carbon will be 3mm carbon, 3mm soric, 3mm carbon
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Rosta Spicl	Rosta Spicl posted 5 Years Ago HOT Post Details
Group: Forum Members Posts: 54, Visits: 250	+x Massimiliano - 10/27/2020 11:43:12 AM I'd like recommend don't bond flanges on one side skin if sandwich.
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Massimiliano	M Massimiliano posted 5 Years Ago HOT Post Details
M Group: Forum Members Posts: 167, Visits: 1.1K	+x Rosta Spicl - 10/27/2020 11:47:38 AM +x Massimiliano - 10/27/2020 11:43:12 AM I'd like recommend don't bond flanges on one side skin if sandwich. Even if soric?
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Epoxy Vs Methacrylate adhesives

mporta71 - 5 Years Ago

Methyl methacrylate adhesives may be better for your application because it allows for expansion and contraction of different bonded materials better then epoxy Epoxy may be to inflexible and brittle...

torstenker - 5 Years Ago

Thanks It will be 316 L

mporta71 - 5 Years Ago

PS: just to be sure I would tape up the surouding area of where the steel is to be bonded to and key the bonding resin surface a bit with wire wool.

torstenker - 5 Years Ago

Thanks, what do you mean by tape up the surrounding area? To add carbon at the edge of the steel?

mporta71 - 5 Years Ago

Would need to know more about the application, from what you've told us either adhesive would be fine. When bonding dissimilar materials, elongation is an important part of the adhesives properties,....

Hanaldo - 5 Years Ago

Hi, it is an assembly joint. Please see below the attachedSS316L part (dark purple) and the actual shape the SS316L will have. Carbon fiber plate will have peelply texture, while SS will be properly....

mporta71 - 5 Years Ago

hah, that looks a bit differnet to what I imagined reading the initial post,that is quiet a small surface area to bond and that really depends on the force you expect. Epoxy used to laminate of infus...

torstenker - 5 Years Ago

Hi, size of the base will be 100 x 80 mm. The carbon will be 3mm carbon, 3mm soric, 3mm carbon

mporta71 - 5 Years Ago

I'd like recommend don't bond flanges on one side skin if sandwich.

Rosta Spicl - 5 Years Ago

Even if soric?

mporta71 - 5 Years Ago

Like a Torsten said, if the bonded join is safety relevant, use some type of mechanical joint for sure. From the long time usage point of view, the water and UV is killer for epoxy.

Rosta Spicl - 5 Years Ago

the carbon with soric is not bad, The problem with glueing is that any axial and angled force can breake the bond du to deformation in the bonded area. Definetly MMA because it allows a bit of...

torstenker - 5 Years Ago

Yes, exactely my experience. MMA accepts a big displacement causes inner delamination. For this type of flanges I'd recommend to make insert connecting both skins, and the best is make punches on...

Rosta Spicl - 5 Years Ago

Massimiliano, we are considering various stuff which may does not apply to you. Just for fun I would glue one bracket onto a sheet, rest it horizontally and hang 4 x 25kg bags of sand or ballast on....

torstenker - 5 Years Ago

I just had a look at Easy's MMA it takes stainless steel: 38.4N per mm2 - 30KG/mm2 GRP: Substrate Failure You should be save to go ahead as long you don't hook an "elefant" on it

torstenker - 5 Years Ago

:-))) No elefant (at the moment) Most of the load will push the laminate against the SS part by mean of the angled shaft, determining a bit of a shear force.

mporta71 - 5 Years Ago

Araldite 2015 is not a bad choice here. Neither is an MMA. Using either of these adhesives, I would expect laminate failure before adhesive failure. Personally I would use the 2015.

Hanaldo - 5 Years Ago

Thank you.

mporta71 - 5 Years Ago

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