Sand Blasting VS Vapor on a Micro Level ... BORED AT WORK

[crazycunuc]

G'day,

I've heard a lot of debate regarding surface finish of sand blast (glass bead) VS vapor blast.  I'm not here to argue on one vs another; only to show what the surface finishes look like under a stereo microscope for shits and giggles.

I used the cylinder heads off my H2 as the subject matter. The heads already had a rougher surface finish from the original casting.
*I'll dig up another original head soon to show factory finish.

VAPOR BLASTING

MACRO


20X Magnification


40X Magnification


SAND BLASTING (Glass Bead)

Macro


20X Magnification


40X Magnification

[crazycunuc]

Here's a before pic...

[Walms]

Cool, it definitely looks like smaller media was used for vapour blasting , any spec on that?

[zambia]

Feb 21, 2018 12:12:19 GMT -5 Walms said:

Cool, it definitely looks like smaller media was used for vapour blasting , any spec on that?

It's just water, as far as I know.

[crazycunuc]

I was under the impression that vapor blasting is water with an added media to it.. Not sure on what they used

[sf]

Rocket uses glass beads so I was told.

[III]

Feb 21, 2018 16:14:54 GMT -5 crazycunuc said:

I was under the impression that vapor blasting is water with an added media to it.. Not sure on what they used

Sounds plausible to me. I always thought it odd just steam could clean that deep....



Vapor Blasting Explained

[browney]

Feb 21, 2018 19:26:36 GMT -5 III said:

Sounds plausible to me. I always thought it odd just steam could clean that deep....

I Suppose I guy could rent a steam Genny and give it a try....You Got To Stop Putting Good Ideas Into My Head Steve. 

browney out 



Vapor Blasting Explained

[JA-Moo]

Yes, there is a media mixed with water. And I will be doing a conversion soon myself, as a few guys have converted their dry bead blaster to a vapor blaster. Sealing up everything really well and then adding a mixer at the bottom to keep the glassbead in suspension.

[sf]

Here is some media (glass bead) from my carbs from Rocket Performance after vapour blasting imgur.com/gallery/Qtrqm