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DIY Spray On Chrome

Discussion in 'The Hokey Ass Message Board' started by nicamarvin, Feb 24, 2012.

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  1. sudzhis
    Joined: Dec 1, 2012
    Posts: 404

    sudzhis
    Member
    from Latvia

    ha ha! :) U are wrong Nicamarvin, silvering formula (for spray on) is totally different from old one! Thats same is only silver and amonia :)
     
  2. sudzhis
    Joined: Dec 1, 2012
    Posts: 404

    sudzhis
    Member
    from Latvia

    Some updates from weekend!

    All images before clear coat! (get bad results, because acrylic and polyurethane clear coats make some fight together :) )


    Helmet is with clear coat

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]


    Photos taken with cat ass! :)
     
  3. nicamarvin
    Joined: Jan 29, 2010
    Posts: 611

    nicamarvin
    Member
    from nicaragua

    did you see my latest results?
     
  4. nicamarvin
    Joined: Jan 29, 2010
    Posts: 611

    nicamarvin
    Member
    from nicaragua

    the principles are the same, they have not changed in centuries. ammoniacal silver nitrate reduced(by a reducing agent)
     
  5. nicamarvin
    Joined: Jan 29, 2010
    Posts: 611

    nicamarvin
    Member
    from nicaragua

    Awesome Job.. Now Let me help you out... dont use Acrylic and Polyurethane together... this is how I do it..

    Black basecoat(mate finish)
    Polyurethane Clear Coat(automotive grade) over the black basecoat(wait 24 hours)
    silver
    same Polyurethane clear coat you used before.(wait 24 hours)
    tinted clear coat water based or not
    EASY...
     
  6. sudzhis
    Joined: Dec 1, 2012
    Posts: 404

    sudzhis
    Member
    from Latvia

    this is new technique!

    How long u wait, after silvering to spray clear coat? I wait some hour or less! But i use professional car painting camera (box) with heating option! I can heat 60`C inside and leave it for some hours!

    Its mean u leave part yellow for 24h and later tint it ? Its sounds much easier that try to catch good coating and not over flood!
     
  7. sudzhis
    Joined: Dec 1, 2012
    Posts: 404

    sudzhis
    Member
    from Latvia

    And yes, I use expensive polyurethane top coat (55$ 900ml) and it is ok after 4h in 20`! If i heat it it is ok er 2h!
     
  8. nicamarvin
    Joined: Jan 29, 2010
    Posts: 611

    nicamarvin
    Member
    from nicaragua

    NO its not. I have been saying that for a long time. please check this link of the source http://www.jalopyjournal.com/forum/showpost.php?p=7779648&postcount=151




    I first Dry the piece with the Hot Air Dryer then allow 1 hour and then spray my none tinted clear coat



    that correct
     
  9. sudzhis
    Joined: Dec 1, 2012
    Posts: 404

    sudzhis
    Member
    from Latvia

    Nicamarvin, but why u wait for 24 hours? My polyurethane is ready after 4-6h!
     
  10. sudzhis
    Joined: Dec 1, 2012
    Posts: 404

    sudzhis
    Member
    from Latvia

    About what show u talk about?
     
  11. sudzhis
    Joined: Dec 1, 2012
    Posts: 404

    sudzhis
    Member
    from Latvia

    I make some experiment yesterday!

    It is trouble to me get off all water correctly from just silvered piece, because air is drying water and on silver it leave some water marks! I spray on silver (after i blow of water with air) degreaser (fat remover that use car painters before car painting) and it works perfect! It removes all water marks and silver stays more glossy! someone try it?

    From little pieces is easy get of water, but from bigger is problems :(
     
  12. Essex Iron
    Joined: Dec 8, 2012
    Posts: 28

    Essex Iron
    Member
    from UK

    Spraying degreaser after silvering :confused:
    I have suffered some of these water marks I willl try it!
     
  13. avantgarde
    Joined: Mar 3, 2013
    Posts: 3

    avantgarde
    Member
    from UK

    This is a great thread. I have a couple of questions. I hope someone can help or at least point me in the right direction.

    I dug up some info on the tints that is added to the clearcoat in order to prevent the Golding effect:
    Per 120g of mixed lacquer, add 5 drops of blue tint, 1 drop of red tint and 1 drop of black tint to prevent the Golding effect.

    I have found tints suitable for cellulose paint but no mention made for 2k clear coat paint. I don't want to add the tint for celly to 2k as I don't want the possibility of reactions in the paint further down the line.

    Can anyone recommend tints suitable for 2k clearcoat please. I live in the UK so any brand-names would be useful.

    My plan is to restore all the chrome on my Triumph Spitfire.
    So for example if I were doing the bumpers (fenders) then this would be the process:

    1. Grind off the chrome and fill any dents with metal filler.
    2. Sand the bumper down.
    3. Spray acid etch on the bare metal then spray HS filler primer.
    4. Wet sand down with 800 - 1500 grit till glass like smooth.
    5. Spray on high gloss black.
    6. Then proceed with the silvering effect as outlined on this thread.
    7. Spray the 2k clearcoat with tints added.

    I am also using a Fuji Mini Mite 3 HVLP spray turbine and I'm trying to source a suitable HVLP double gun set up. The one below looks ideal.


    Does anyone know if the following gun from Angel Gilding is suitable for my Mini Mite 3 HVLP turbine? I've emailed them but no response yet.


    [​IMG]


    Many thanks in advance,
    AvantGarde
     
    Last edited: Mar 4, 2013
  14. sudzhis
    Joined: Dec 1, 2012
    Posts: 404

    sudzhis
    Member
    from Latvia

    Yes, but use really good and expensive degreaser not cheap one! It works for me! Spray it on, wait 10s blow with air
     
  15. sudzhis
    Joined: Dec 1, 2012
    Posts: 404

    sudzhis
    Member
    from Latvia

    I u want to silver just your parts- dont brake your head- just buy premixed clear coat, thats all! If u live in UK it even easyer, because there is few companies what sell tinted clears!

    This gun is old, but on alibaba or some Chinese web sytes u will find it cheaper!

    For now your problems is much bigger than only to find double spray gun- trust me! There is thousands tips and tricks and thousand ways to go wrong!
     
  16. avantgarde
    Joined: Mar 3, 2013
    Posts: 3

    avantgarde
    Member
    from UK

    Most guns I've come across are not designed for HVLP with a working psi below 10 psi (true HVLP has less than 10psi). Also there are problems with buying from China - min order quantities, small details lost in translation etc Just a lot of hassle buying from the Far East.

    I'm planing to set up a workshop offering a chroming service.
    First things first though, I need to get the chrome on my Spitfire sorted. Once I have chromed my bumper in one go then I'll be ready to offer my services to Joe Public.

    I don't really want to buy pre-mixed clearcoat as I would prefer to add the tint colours drop by drop till I find the right solution rather than buying tin after tin of pre-mixed clearcoat/tint.

    I have been looking into translucent glass paint as my tint material. The only problem is finding a tint that won't react to 2k paint. What sort of tint is added to 2k paint - if anyone knows please let me know.

    I will look again at the guns on 'alibaba'...

    Thanks sudzhis, I appreciate the comments of how hard this all is - helps eliminate stupid mistakes.
     
  17. sudzhis
    Joined: Dec 1, 2012
    Posts: 404

    sudzhis
    Member
    from Latvia

    I buy from alibaba- all is good for now! If u dont find nothing, write to me PM i will recommend something!

    What about chemicals? Where u will buy them?

    Do u silver something before?

    I have a good results with no tint but pigment ! I use water based paint pigments! Try it, they are good!
     
  18. nicamarvin
    Joined: Jan 29, 2010
    Posts: 611

    nicamarvin
    Member
    from nicaragua


    because this "Could" happen..! source http://www.jalopyjournal.com/forum/showpost.php?p=7863407&postcount=188

    sudzhis you will save alot of trouble if you start reading my post(on this thread made to makes things easier by avoiding my mistakes) sudzhis why would you risk it? this issue happened to me because I was on a rush and I applied the second tinted coat after 4 hours. and all I got was a heartache. I know better now and thanks to my bad experience you should also avoid this(rushing things up)


    Let me emphasize this subject once more

    do you see these beautiful pieces?
    [​IMG]

    now let me remind you how much effort it took me to silver them.

    this is how they started..

    [​IMG]

    I use Krylon Fusion paint, this is my glue to plastic parts, I dont need to do any other prep for the paint to stick to it and only a few dust coats are need it, you can apply one coat if you are worried about it, but I have don lots of practise with my spoons and no paint has come off as of yet..

    after dust coats of Krylon Fusion
    [​IMG]


    after 10 minutes I apply my black base coat
    [​IMG]


    then I do my clear coat(remember all is in the prep, you want a mirror? then at this step you need to make a mirror out of the thing, if you dont have the shine, no amount of silver will bring that shine again)

    [​IMG]

    and this is before the complex silvering process

    now silvered..Never seen video(not on this forum)
    <iframe width="420" height="315" src="http://www.youtube.com/embed/8xHllDIvY7o" frameborder="0" allowfullscreen></iframe>

    and now Ruined because I wanted to rush this job. and yes my clear coat was fully dry at 4 hours...But not completely cured

    [​IMG][/QUOTE]



    I had to REDO the piece I ruined. and here it finished with tinted clear..

    never seen video(never seen on this thread)
    <iframe width="420" height="315" src="http://www.youtube.com/embed/_XRdKGQk1CA" frameborder="0" allowfullscreen></iframe>
     
    Last edited: Mar 4, 2013
  19. avantgarde
    Joined: Mar 3, 2013
    Posts: 3

    avantgarde
    Member
    from UK

    [​IMG]

    Thinking about buying two of the above pressure pump sprayers. Attach them together and fix the bottles on a dolly in order to make it portable. Not sure how fine the spray is so I don't know yet.

    My criteria is that I need to be able to silver a complete front bumper in 1 go.

    There is a guy in Thailand selling a D.I.Y duel spray gun - pretty ropey looking but it works! I'm sure I could machine some parts that he has taped together to make it a bit more durable.

    He is also selling Chrome Colour Dye which is added to the 2k clearcoat.
    Also Seal Concentrate which protects the silver from oxidisation before spraying the clearcoat.

    ...but I reckon I'll be ordering most of the chemicals from
    Angel Gilding though simply because their web site is easy to navigate:eek:.

    No I've never silvered before. Then again I had never sprayed a car with metallic paint until the first time I had done it - a lot of research, lot's of prep work on the car and a perfect result. :)
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    </td><td class="dtl">
    </td></tr></tbody></table>
     
  20. sudzhis
    Joined: Dec 1, 2012
    Posts: 404

    sudzhis
    Member
    from Latvia

    These preasure pump sprayers will work, but u will need to rebuild them! U will need the same preasure all the time!

    Remember that there is nothing similar to painting, and it is not important how good painter u are, because silvering is something different! Your questions will start only when u start to do it!

    I know this guy in thayland! I buy from him chemicals some time ago! All was Ok! I dont try his DIY spray gun!

    Sent to me PM I will share place to buy good gun!



     
  21. sudzhis
    Joined: Dec 1, 2012
    Posts: 404

    sudzhis
    Member
    from Latvia

    Nicamarvin thanks! This topic is too big to remember all and in my country is little different all painting and paint technique! There with polyurethane is painting only some dog house or house roof, but not a car! I dont know why!

    But thanks for your help Nicamarvin
     
  22. nicamarvin
    Joined: Jan 29, 2010
    Posts: 611

    nicamarvin
    Member
    from nicaragua

    in different countries we have different names for the same type of coating, but since nicaragua and the USA are very close we use the same term.. Polyurethane or Urethane 2K means a 2 part katalized automotive type of coating, now days its the Only type of coating use on the automotive world. in the past the car companies used lacquer, enamels but now they use ONLY Polyurethane/Urethane system
     
  23. sudzhis
    Joined: Dec 1, 2012
    Posts: 404

    sudzhis
    Member
    from Latvia

    No Nicamarvin! I talk for it with paint sellers and they said that in europe all painters use acrylic clear coats and acrylic top coats! In our country with polyurethane is painting only some garage doors not cars! It is strange but it 100% is true! I can buy polyurethane only in shop that sells paints but not paints for car painting!

    I know that in europe is very popular water based paints!
     
  24. nicamarvin
    Joined: Jan 29, 2010
    Posts: 611

    nicamarvin
    Member
    from nicaragua

     
  25. sudzhis
    Joined: Dec 1, 2012
    Posts: 404

    sudzhis
    Member
    from Latvia

    100% i will try this! I thinked about this some days ago! Problem is that I dont know how good quality is my polyurethane clear coat!

    Nicamarvin what is reason to use base coat? Clear coat is that same glossy and shiny without base coat! It is just a question!

    Nicamarvin do u know the reason why silver is making yellow color? In witch chemical is problem? It makes yellow even with clear water (a little but it make)!
     
  26. sudzhis
    Joined: Dec 1, 2012
    Posts: 404

    sudzhis
    Member
    from Latvia

    I talked with my old friend from Sweden! Hi works there and his painting service buy some system (spray on chrome) some time ago (about year ago) and they cant get good results because silvered piece get a yellow color! Yellow color even with premixed clear coat! Strange
     
  27. brian55lvr
    Joined: Oct 24, 2010
    Posts: 603

    brian55lvr
    Member
    from ma

    the reason for the base coat is-----the clear coat doesnt stick to metal or plastic by itself---it needs a ''binder''
     
  28. sudzhis
    Joined: Dec 1, 2012
    Posts: 404

    sudzhis
    Member
    from Latvia

    In this situation yes!
     
  29. nicamarvin
    Joined: Jan 29, 2010
    Posts: 611

    nicamarvin
    Member
    from nicaragua

    because clear coat is not meant to go directly over plastic pieces, clear coat is meant to go over a previously prepared piece
     
  30. nicamarvin
    Joined: Jan 29, 2010
    Posts: 611

    nicamarvin
    Member
    from nicaragua

    no, it will not stick to plastic. on metal has a better hold, but it has very good adhesion to Silver.



    here check how flexible it can get, this spoon was prared using Krylon Fusion which will stick to any plastic. then I use black base coat then clear coat. Silver. green tinted clear coat

    <iframe width="560" height="315" src="http://www.youtube.com/embed/6FJCpt1vESA" frameborder="0" allowfullscreen></iframe>
     
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