Media for RSR finish

[drcoastline]

Good Morning Pelicans,

Has anyone DIY'd their own RSR finish? If so what media and air pressure did you use to create the frosting? I'll throw in some pics and a Youtube video to make this post more interesting. Good video but the guy doesn't provide enough information. Thanks in advance for any information you can provide.

[faverymi]

You will never get that finish with any media blasting.

Impossible to get a uniform blast when it comes from a nozzle

Do it right and anodize it or paint it for a compromise.

Ask me how I know...

[Canada Kev]

I believe they still need to be blasted before anodizing to get the rough "frosted" kind of finish.

And these seem to have turned out rather nice.

https://forums.pelicanparts.com/porsche-911-technical-forum/1061197-diy-fuchs-rsr-finish.html

[911pcars]

This 3.2 intake manifold was first prepped and polished, then glass bead blasted at approx. 15-20 psi. The appearance depends on your monitor's color settings.







Hope this helps,

Sherwood

[Cory M]

We blasted these wheels at home a couple of weeks ago using a mixture of medium and fine glass bead. Not sure what the pressure was, compressor is about 100psi but there is probably a regulator in the blasting cabinet to reduce it. Sprayed the blasted areas with matte clear paint after so they are easy to clean up in the future. The polished lip was masked off for blasting, then polished again.

[drcoastline]

Originally Posted by faverymi

You will never get that finish with any media blasting.

Impossible to get a uniform blast when it comes from a nozzle

Do it right and anodize it or paint it for a compromise.

Ask me how I know...

The video above was blasted. What the guy doesn't indicate was media or pressure.

[drcoastline]

Originally Posted by Canada Kev

I believe they still need to be blasted before anodizing to get the rough "frosted" kind of finish.

And these seem to have turned out rather nice.

https://forums.pelicanparts.com/porsche-911-technical-forum/1061197-diy-fuchs-rsr-finish.html

Saw that thread after I posted. That thread was very helpful.

[drcoastline]

Originally Posted by 911pcars

This 3.2 intake manifold was first prepped and polished, then glass bead blasted at approx. 15-20 psi. The appearance depends on your monitor's color settings.







Hope this helps,

Sherwood

Beautiful, thank you for the info very helpful.

[drcoastline]

Originally Posted by Cory M

We blasted these wheels at home a couple of weeks ago using a mixture of medium and fine glass bead. Not sure what the pressure was, compressor is about 100psi but there is probably a regulator in the blasting cabinet to reduce it. Sprayed the blasted areas with matte clear paint after so they are easy to clean up in the future. The polished lip was masked off for blasting, then polished again.

Corey, those came out great. I got my hands on a damaged **** so can practice without hurting anything. I think I will start with 15-20psi using glass bead and work my way up in pressure if needed. Thanks for the post very helpful.

[Cory M]

Thanks. I did this set too using whatever media was in the cabinet at the time. It has a rougher sand blasted finish but i like it. Make sure you clean and degrease the wheels first if they are used.



A friend of mine had these minilites sand blasted at a local shop. They had thick ChomaFlair paint on them. The shop said they would have to charge double to glass bead, because they would have used sand to remove the paint then glass to get the smooth finish. After sandblasting he was happy with the finish and didn't glass bead them. They will look perfect on the cool hot rod MGB he's building. It was under two hundred bucks to have the shop do 5 wheels, makes me question whether it's worth doing it myself..

[drcoastline]

Cory M- The other thread on RSR finish the guy said he paid $100.00 to have blasted. If that's the case I won't bother to blast myself, It will cost more in media than that. I just need to find someone.

[911pcars]

Gotta be careful using aggressive media on a structural as well as visual item. Use an appropriate paint remover to safely lift the paint coating and not affect the base metal. Even glass beads, when shot at high pressure, can affect critical dimensional and sealing surfaces.

Sherwood

[drcoastline]

Originally Posted by 911pcars

Gotta be careful using aggressive media on a structural as well as visual item. Use an appropriate paint remover to safely lift the paint coating and not affect the base metal. Even glass beads, when shot at high pressure, can affect critical dimensional and sealing surfaces.

Sherwood

Thank you Sherwood,

That is why I am moving slowly. The anodized finish was removed using the EZ-off and elbow grease method. I am aware of heating and hardening the metal and why I am asking about media and pressures. I know there are a lot of medias that will recreate the surface but looking for the least damaging as possible.