Hi all - we do recommend rounding the corners on the ST blade - no more than the diameter of a 5 pence piece (in our opinion) but it is down to personal preference. Some customers dont round them so we keep them square so the Plasterer can do his own thing.
The old grey blades have been phased out - replaced by the blue ST. They are now easier to clean as the distribution lines are only toward the edge (the last 19mm). The PVC is an improved grade with better UV filters which mean the blades stay supple over time - less susceptible to becoming brittle.
The colour was changed to blue as a new look - but also make it clear it was a PVC. In its old grey colour, images on the internet meant the blade could sometimes be confused as aluminium (and part of the handle).
Regards to cleaning its important to wash the unit down with clean water after each operation. As well as general cleaning, its important to carry out some routine maintenance. For this we recommend take off the end caps and remove the blade completely - then wash the aluminium slot with clean cold water then pop the blade back in, click the end caps back in place.
If you are plastering every day we recommend the routine maintenance once a week to ensure free blade movement, and easy blade change. The purpose of this operation and stripping down the unit is to remove any build-up of plaster/render silt.
If you are rendering every day we recommend stripping down the unit each day. These cleaning operations take just a few minutes and ensure optimum performance.
We are currently working on robust blade guards - these should be available in a few months. In the meantime 15mm foam pipe insulation provides quite good protection to the blade on both the ST and SF.
Useful FAQ links:
ST and general Speedskim FAQ's:
Speedskim
SF FAQ's:
Speedskim
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