What adhesive is suitable for gluing steel and G10 material?

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Discussion Overview

The discussion centers on the appropriate adhesive for bonding steel and G10 material in an environment where the assembly will be subjected to movement and exposure to oil. Participants explore various adhesive options, including epoxy and JB Weld, while considering the long-term durability and performance of these adhesives in oily conditions.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested
  • Experimental/applied

Main Points Raised

  • Alan inquires about the suitability of epoxy for bonding steel and G10 in an oily environment, expressing concern about long-term durability.
  • Some participants recommend JB Weld, with one noting their positive experience using it in internal combustion engine applications.
  • There is a suggestion that mechanical fastening, such as drilling and tapping, might be preferable if feasible.
  • One participant discusses the use of Kevlar thread as a constrictive exoskeleton to enhance the bond in certain temperature conditions.
  • Another participant mentions high-performance adhesives like 3M 5200 and Surebond SB-190 as alternatives to epoxy.
  • Concerns are raised about the chemical compatibility of adhesives with various materials, including the potential for plastics to absorb oil and water, which could weaken the bond.
  • Participants discuss the relative merits of Kevlar versus carbon fiber in terms of bonding and repair applications.
  • Alan clarifies that the adhesive is intended for a pocket folding knife, emphasizing the need for the bond to withstand oil exposure while maintaining functionality.
  • One participant shares their experience with a specific epoxy product that has performed well in various applications, including repairs on engine blocks.
  • There are inquiries about the longevity and stability of JB Weld, particularly regarding its initial stickiness and curing time.

Areas of Agreement / Disagreement

Participants express a variety of opinions on the best adhesive to use, with no clear consensus on a single solution. While some advocate for JB Weld, others suggest different adhesives or mechanical methods, indicating ongoing debate and exploration of options.

Contextual Notes

Participants note that the temperature range and the specific environmental conditions (e.g., exposure to oil) are critical factors in determining the effectiveness of the adhesives discussed. There are also mentions of the potential for certain plastics to swell and distort, impacting adhesive performance.

Who May Find This Useful

This discussion may be useful for individuals involved in DIY projects, repairs, or engineering applications where bonding dissimilar materials, particularly in challenging environments, is required.

  • #31
Baluncore said:
Just stop overthinking it, and scrape the surface.
I have to get back to you. I open another one, feels like the epoxy doesn't even stick onto the steel that well, when I peel it, half stick on the steel, half on the G10

Now I question the epoxy whether it's too old or not good enough. It's less than 2yrs old.

I'll be back.
 
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  • #32
yungman said:
Hi

I need to glue steel with G10 material together. But it is in moving parts environment that constantly see oil for the moving parts. My first thought was epoxy, but can it survive in oily environment in the long term. Any other suggestions?

thanks

Alan
isn't G10 itself made of epoxy? not trying to be smart, just pointing out what could be a problem.
 
  • #33
Baluncore said:
Just stop overthinking it, and scrape the surface.
I finally get a chance to try this.

I scraped both the surface of G10 and even the metal surface.

IT WORKED. THANKS.
 
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