GRP moulds

Discussion in 'How To' started by Paul Weeding, Oct 31, 2012.

  1. Silver

    Silver Needs points/will pay!

     
  2. rickyrooo1

    rickyrooo1 Hanging round like a bad smell

    this is them on a cali heat exchanger
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  3. I was thinking that too!! :thinking:

    Cheers Ricky :thumbsup:
     
    Last edited: Mar 15, 2014
  4. Knocking up the first batch of GRP tins
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    Gel coat on
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    Just got to lay up the chopped strand now, and that'll be the first ones made!! :thumbsup:
     
  5. Decided to have a bit of an experiment, and used some glass twill weave that I'd got

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    just needs a couple of days to go off fully now, and we'll see if I've cocked it up and now have some GRP doorstops :lol:
     
  6. Cool,

    Depending on how you have positioned your cloth, you might end up with some fairly flexible mouldings. Which may actually be a good thing......

    If you offset each layer of woven cloth so that the strands are going in different directions you can effectively adjust the stiffness. Chopped mat is stiff in all directions because of the nature of the strands being all over the place.

    A more bendy moulding might actually suit this application though.

    Looking forward to the result. Then you can make up some type 1 tins ;)

    Nick
     
  7. Well the plan is, if I can do it with 1 layer of twill, it keeps the thickness down too... But I do appreciate the input :thumbsup: cos I'm still learning as I go 8)
     
  8. Best way to learn is by doing ;)

    Yeah I would think one layer will be very bendy. BUt you could always add another layer after if you want. The only place the thinness might be an issue is the mounting points. Could be worth adding a couple of patches of mat at the points you need to drill mounting holes.

    I also reckon you will be ok to pop them out after a day. With those shapes they will probably hold their form ok anyway. :thumbsup:

    Nick
     
  9. I was planing on going and pulling them from the moulds tonight anyway :lol:
     
  10. Left them for another 24hrs, as the resin was still a little tacky... cold weather really slows down the full cure time

    Needs a clean and a polish... need to get my moulds polished up some more, and they'll come out shiny then :thumbsup:
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  11. Nice job!

    Crank up the catalyst to 4% in this weather. If you can waft some heat on it to start the cure off that helps to, but don't go mad on the heat or it'll blister.

    Bet your chuffed :)

    Nick
     
  12. Yeah, well chuffed :D

    Just gonna wet sand the moulds a touch and polish them up with some G3 and the mop!!

    but here is the finished pair of std UK bay tins :thumbsup:
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    I'll get on with the dash top next now :lol:
     
  13. Silver

    Silver Needs points/will pay!

    They look really good. :thumbsup:
     
  14. Quality. Do they really need sanding and mopping? Look fine to me. :)
     
  15. The moulds do.. but I'm anal about the finish on things that I sell :lol:

    I gave those a buff with some G10, as they came out very satin/flat
     
  16. Quality as always Paul,
    paving a way for us mere mortals ;)
     
  17. Look great , good work
     
  18. Look great fella!!! Reckon you should wet sand and mop as those are mine haha!! ;)
     

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