Powder Prep

I’ve been spending a few days preparing several items for the Calgary CVMG club ‘powder coating day’ this coming Saturday.  Should be interesting as I haven’t actually seen this done before – other than on television of course ! I hope to have two motorcycle frames ready to go – both are Suzuki’s, one being a 1973 GT750 and the other being a 1977 GT500. I’ve spent the past few days disassembling and getting them stripped down, taken lots of photos and bagged and tagged many of the smaller bits and pieces, nuts and bolts.

Today I spent some time washing off the accumulated dirt and  oil from 30+ years of use.  I had briefly thought of  doing this in my driveway using my pressure washer, but very quickly rejected the idea as it would flush small amounts of oil and grease down the storm drain. Instead, I took everything over to a local Shell car wash as they (supposedly) are set up to keep this sort of debris out of the storm water system.

I’ve touched on Shell’s marketing folks and what an odd lot they are previously. Some time ago (before I retired !) I had suggested to the same brilliant marketing folks at Shell that keep closing filling stations so you can’t find one when you need one, that they start to consider the value of putting Shell’s name on the roofs of our buildings. When you consider the number of people using the various free mapping services offering satellite photos that show tons of detail, you would think it would be a no-brainer. A few companies have actually done this in the USA, and Microsoft offers this capability in a virtual fashion with Tim  Horton’s coffee shops and Petro-Canada filling stations in some parts of Canada using their Bing mapping service. In the photo to the right, you can see the Shell station and car wash I used – or at least you can now that I’ve pinned a label on it with an arrow !  Imagine how it would look with a big Shell pecten on the roof – this of course hasn’t happened. As I may have mentioned previously, our marketing folks border on genius in much the same way that hammers do – not very much at all actually, but I digress ……

The parts are now all freshly washed, and tomorrow I go over to the good folks at Consolidated Compressor here in Calgary to sand blast all the bits and pieces. I wrote about them previously here , and this time I will be using their indoor glass bead blasting cabinet for the smaller items and the outside sand blasting stations for the two frames. I have to admit, for someone like myself who doesn’t have to do this sort of thing for a living, there is a certain fascination about watching the old paint, rust and anything else that happens to get in the way and isn’t firmly attached get blasted into oblivion – it promises to be fun ! If all goes well, I’ll have Friday to blow out any bits of grit and make sure everything is ready to go for the main powder coating event Saturday morning.

I’ll let you know how it goes !

Blasting in Calgary

I just spent a 30 minutes doing something that was hugely satisfying in a weird kind of way – sand blasting !

The background is that I I needed to clean up some parts for my Suzuki GT750 project (the ‘home’ site for the GT750 rebuild project is here) for welding and painting, and with all the nooks and crannies it was taking far too long to sand the parts down. I have an air compressor, and actually tried out a cheap sand blasting unit from Princess Auto, but several things gave me pause:

• you really need a lot of air for it to work well
• the mess made by all the sand flying about is amazing
• it is not good for the lungs – actually if you want to do this sort of thing, you need either a fully enclosed cabinet for smaller items, or a full head cover with external air feed to pressurize the hood to ensure you aren’t breathing silica dust and paint chips when blasting larger items

Bottom line – not recommended mainly due to safety concerns unless you are willing (and able) to invest the money in the right safety and compressor equipment.

One of the fellows in the RMS branch of the CVMG had mentioned to me, that there was a local outfit here in Calgary offering do-it-yourself sand blasting by the hour so I thought I’d give them a try. Consolidated Compressor is in the east industrial area of Calgary and the rates are quite reasonable. They have about 8 stations, and on any given day you will find several people happily blasting away as per the photo to the right. As I was new to this, one of the folks there stepped me through the ‘how tos’ before I got started. It isn’t a difficult process – basically just point and shoot, taking care not to get parts of your own body in the way ! They supply instructions, gloves and ear plugs, a fully enclosed helmet with external air supply, work areas where you can clamp your work, and all the compressed air and sand you need. Long sleeves and long trousers are a must, and as well it is also a good idea to not park your car too close, just in case you point things in the wrong direction ! The process is fast – paint, rust, etc., just flew off the work pieces I had, and the resultant bare metal finish is ready to go for paint or additional metal working as required.

I have to assume the same sort of service is available in other cities, and if not then that’s a shame because its a great idea !