Platinum & Palladium Printing. Possibly convert Marrutt CP450 Contact Printer to UV?

Discussion in 'Alternative Processes' started by Ed Bray, Feb 23, 2014.

  1. Ed Bray

    Ed Bray Member

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    I am thinking of branching out a bit and trying Platinum & Palladium Printing. I am toying with the idea of converting the CP450 contact printer I was given to an UV Light sourced contact printer as I do not currently use it as it is, images below:

    It is a 16" square contact printer with built in timer to 99.9 seconds and the facility to dim the lamps from full power, 1/2 power, 1/4 power and 1/8th power

    [​IMG]

    [​IMG]

    [​IMG]

    I am thinking of either replacing the 3 white lamps with 3 of either of the lamps below, I can also remove one or if required both of the translucent diffusion panels to increase the light output from the lamps.

    http://www.bltdirect.com/energy-sav...t-bayonet-cap-blacklight-125-watt-alternative cost circa £30 ($50)

    or

    removing the lamp holders currently installed, replace them with 5x 300mm T5 8W Fluorescent Tube Fittings and use 5 of these: http://www.bltdirect.com/fluorescent-blacklight-blue-8-watt-300mm-1 but the cost would be circa £80 ($130) all in.

    Any thoughts, or if these are the wrong type of UV Lamp could someone advise (maybe Sandy King) which are the correct type I should be looking for please?

    TIA, Eddie.
     
  2. payral

    payral Member

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    You need to know output wavelength of this lamp. Pd/Pt needs something around 350 / 400 nm.
    Timer to 99.9 seconds will be useless, you need much more something between 1 to 60 minutes.
     
  3. Ed Bray

    Ed Bray Member

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    According to the spec sheet of the lamps the wavelength is circa 356nm

    I realised the timer would give times too short, but I would just wire it up straight to the switch anyway.