Efficient Viscous Fluid Degassing Techniques for Epoxy Resin: Tips from Experts

  • Thread starter Thread starter Buchimuer
  • Start date Start date
  • Tags Tags
    Fluid viscous
Click For Summary
SUMMARY

Efficient degassing of epoxy resin, particularly when mixed with viscous silicone oils, is crucial to eliminate air bubbles that can compromise the final product. Experts recommend using a vacuum vessel for effective degassing, as it allows for the removal of bubbles trapped at the bottom of molds. Additionally, applying epoxy in thin layers and utilizing rollers or brushes can help eliminate surface bubbles. Pressure vessels can also be beneficial, enabling both vacuum and pressurization techniques to manage thick resin.

PREREQUISITES
  • Understanding of epoxy resin mixing techniques
  • Familiarity with vacuum and pressure vessel operations
  • Knowledge of bubble elimination methods in resin applications
  • Experience with boat construction techniques involving epoxy
NEXT STEPS
  • Research vacuum vessel options for epoxy degassing
  • Learn about pressure vessel applications in resin work
  • Explore techniques for applying epoxy in thin layers
  • Investigate the use of rollers and brushes for bubble removal
USEFUL FOR

This discussion is beneficial for epoxy resin users, boat builders, and anyone involved in composite material applications looking to improve the quality of their resin work by effectively managing air bubbles.

Buchimuer
Messages
5
Reaction score
0
Hi all!

I'm currently working with epoxies and very viscous silicone oils.
The problem is when I mixing the two part epoxy, there will be a lot of bubbles in the resin. I managed using heat gun to break air bubbles near the surface, but the bubble at bottom of the mold cannot flow up.
I know you all have lots of experience with epoxy, would you please give me some advise for degassing the epoxy resin? Is buying an vacuum vessel be the only solution?

Thanks!
 
Engineering news on Phys.org
You don't have much time after the catalyst is mixed. Eliminating the bubbles while in the pot might take too much time.

In boat construction, the epoxy is first applied in thin layers. Then rollers and brushes eliminate the bubbles.
 
  • Like
Likes   Reactions: Buchimuer

Similar threads

Hydrodynamic forces on a foil, Reynolds number, viscosity
  • · Replies 17 ·
Replies
17
Views
5K
Chemically regenerating my auto's catalytic converter?
  • · Replies 19 ·
Replies
19
Views
8K
Is Over-Engineering Hindering Your Success in Engineering Projects?
  • · Replies 3 ·
Replies
3
Views
12K
Physics What are the challenges of starting a financial company as a college dropout?
  • · Replies 20 ·
Replies
20
Views
10K
What colors and attributes could alien flora & fauna have?
  • · Replies 15 ·
Replies
15
Views
6K