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Frame Blasting Media

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AshimotoK0:
LSN are OK but the only job they did for me, they masked everything pretty good but  that was in gloss and then I saw a sample of their 'satin' black at Rufforth Autojumble and I agree with Graham it's more like matt finish than satin. I think John Wyatt uses them.

MarkCR750:
Hi Deano, why do you want to paint instead of powder coat?, modern powder coat can give a good gloss finish if that’s what you’re looking for.

matthewmosse:
I've been considering getting glass media, I think the company selling it said fine grade for the hobby use blaster I have. My last job involved shot blasting with chilled iron shot, we had issues with rough finish leaving the paint looking rough, the finer stuff gave a better finish but turned to dust far faster and took longer to do the job. I think at £750/ ton the rate it turned to dust was costly especially if it got wet - not good news with any shot blast media but I imagine the glass would at least dry out better if it does get the damp.... Hammerite just ain't as good as it was. I use industrial cellulose  plant paint on my machinery, looks after a year of carting muck like it's more durable, far cheaper than hammerite and ditto for the thinners, found a 20l drum for £20 delivered. Gets a decent finish 50% thinned down with a cheap spay gun. I tend to use red oxide primers, not as effective as the old paints but does seem to be rather tough stuff. Last bike frame I did I brush painted with Blackfriar brand red oxide and satin black. Still looking reasonable after 7 years and 4 winters commuting.

AshimotoK0:
I strip  the old with proper old fashioned methylene chloride stripper then glass bead blast but that's for an import type frame that has minimal rust. This frame was done that way and is away at the moment with Andrew Parnaby for painting candy red. For a rusty UK frame then glass would be hard work to get to a rust free state I imagine. Glass does flow a lot better though,particularly in cold damp weather like this.

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Trigger:
Many moons ago I used to use a guy for painting frames at J13 M1 and the paint always lifted on the joints after six months. It took me a while to work out that he took the frames to Bedford to be blasted and then would sit the frame in his workshop until he had time to paint it. I visited him to once to chase up and saw the frame sitting in a corner going rusty again  >:(.
If you use a painter, it is always better that he does the blasting in house and it is painted the same day.
I would never recommend the guy I use now, as everyone would take frames to him and that would slow up any work that I need doing  ;)

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