Granat Net for Metal

[edlebby]

sorry if this is somewhere...did search but no luck

I am interested in using festool more for metal work ... old cars, welding, metal surface prep (rust, mill scale) - tons of dust in those applications, so festool's dust extraction would be a huge plus....

I realize I am a salmon swimming upstream on this forum as it is mostly woodworking (which i also do)

first question is about what fes abrasive is most similar to scotchbrite - i am seeing granat net...never tried it - the application is refreshing an older blast cabinet (large) - all made of mild steel sheet metal ... a lot of light surface rust...does anyone have experience with this application and what festool solution would work best? - i am not trying to get to bare metal ... just light surface conditioning to then repaint

PS - is there a spot on the web like FOG but for people wanting to use festool for automotive/metal??

THANKS

 

[Cheese]

Remember, Festool and 3M are in a partnership for automotive refinishing. Here's a link that may be of interest. Unfortunately this catalog was before Festool released their Granat Net discs.

The equivalent of Scotchbrite is the Festool Vlies line.

If the cabinet is painted then I'd start with some Granat discs or some Cubitron from 3M. I'd be tempted to go with Cubitron as you can usually purchase them in packs of 10 or 20 each. I've also seen a Cubitron variety pack sold so that you can get a feel for what paper you really need for the job.

For automotive restoration Festool pushes their 80-180-280-400 grit program, I'm not so sure about that, especially on the bottom end of 80 grit.  [eek]
https://multimedia.3m.com/mws/media/1237808O/3m-festool-total-automotive-sanding-system-catalog.pdf

 

[edlebby]

thanks

i see that now

interesting...3m trying to provide the abrasives and festool the tools....will check it out

 

[CeeJay]

I did some work earlier this year on CorTen steel and found that the RO150 with an interface pad and 120 grit Diablo mesh abrasives worked very well. Simply because I needed it ‘now’ and the Granat paper I had was not working well at all, and the local store had the Diablo Mesh.

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[Cheese]

Just curious why you were using it on Cor Ten as it’s designed to rust for its own protection.

 

[CeeJay]

Indeed.

I had 3 laser cut patterned sheets of 8’x4’ CorTen designed, cut and delivered for our deck/balcony extension. They came unrusted and the contractor stored them propped against a fence in the rain for about 8 weeks before installation.

When he pulled them out the rust pattern was really ugly streaking and staining. So I ended up stripping them back to bare steel, rusting them myself with a weak acid spray to a nice uniform shade, then sealing them.

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[CeeJay]

So - to OP, yes I reckon Granat Net would work very well.

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[edlebby]

Thanks

 

[Cheese]

I had 3 laser cut patterned sheets of 8’x4’ CorTen designed, cut and delivered for our deck/balcony extension.

Nice job on the CorTen... [big grin]...both the design and the integration.

Smart to bring them back to a uniform patina and then go forth. What did you use to seal them?

 

[CeeJay]

I used Everbrite to seal it. Very expensive but has worked well.
https://everbritecoatings.com.au/products/everbrite_940_ml_can_

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