Are you interested in learning more about epoxy floors? By clicking on the link you can access our FREE 4-page troubleshooting guide http://learncoatings.com/sign-up-to-my-newsletter/ This presentation explores a common problem that may occur during epoxy floor installation. Bubbles may emerge on the floor screed leading to little holes on the surface. We are pointing our various procedures that will help eliminate these bubbles. Such procedures include properly preparing the substrate, using the correct tools and application procedures, as well as choosing a good quality product.

1. What causes Bubbles
and Pinholes in
Epoxy Floors ?

2. Epoxy and Polyurethane floor covering
screeds are capable of producing beautiful
and durable results

3. And yet….

4. Some times we get these awful looking
bubbles and pinholes emerging in the
surface….

5. Bubbles are formed while the
screed is still wet and is being
applied.
Bubbles appear when there is
gas trapped inside the screed

6. What causes these pinholes
and how can we prevent
them from appearing?

7. Here are the main reasons:

8. 1.
poor quality
(porous) substrate

9. Beware of:
- Rough concrete
- Sandy cement surfaces
- Foamy (or light) cement mortars
- Existing holes in the substrate
- Moisture or dampness on the substrate
1. Porous Substrate

10. 1. Porous Substrate
A surface needs to be properly sealed and primed.
When you are ready to apply the floor screed all
pores need to have been adequately sealed.

11. Fill all cracks, holes and dents with suitable
epoxy filling grout
1. Porous Substrate

12. 2.
application of the
screed

13. Application
Work only with trained personnel.
Use spiked rollers in order to eliminate gas
that may be present in the floor screed.

14. Use spiked shoes to be able to easily access all
areas of the floor that is under installation
Make sure the entire surface is well lit so that
all problems are visible
Pay special attention to corners, edges, and
near walls. This is where most problems with
bubbles occur
Application

15. 3.
product issues

16. Be careful when mixing the various components.
Use an electric mixer with an adjustable speed
(no more than 300rpm).
High-powered high-speed mixers that have been
designed for other uses (like mixing cement or
plasters) may generate new bubbles
Product Issues

17. Beware of products containing high
amounts of solvent
Resinous products generate gases and
bubbles during the manufacturing and
formulation process
Product Issues

18. Concluding the three main reasons
are:
1. Issues with substrate
2. Incorrect application
3. Product Issues

19. Thank you for watching!
Are you interested in learning more about
epoxy floors? By clicking on the link you can
access our FREE 4-page troubleshooting guide
Learncoatings.com

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