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Fibreglass product making process?
the_fbi - 10/9/06 at 10:18 AM

Having read some really good info from CFS Fibreglass (http://www.cfsnet.co.uk/Web_FibreglassGuide.pdf) I'm just looking to get confirmation on the process.

Say I have a dashboard, which I've made up from 5mm ply, 8mm foam and a top covering of some fabric, all dials/switches/dash are fitted and it looks like



Is this the correct way to make a fibreglass version?


  1. Remove dash/switches/gauges
  2. Cover dash with some polyprop sheeting to protect it from gelcoat
  3. Apply release agent to the polyprop surface including the edges
  4. Apply gelcoat (Resin B) to give me a nice smooth surface of the mould (yip i'm doing a mould first)
  5. Apply a general purpose (Resin A) resin and 450g CSM to the gelcoat layer and build up 4-5 layers of thickness using a roller to remove air bubbles.
  6. Add some wood strips if necessary for strength/ease of handling.
  7. On the edges I'm just going to leave eges dangling/dripping and possibly add some wood strips to strengthen.

  8. Leave to fully cure for 5-7 days, remove and air dry for a few hours then wash in warm soapy water.
  9. Hope the gelcoat is nice and smooth.
  10. Tidy up edges
  11. Apply PVA release agent to mould
  12. Mix some wax in with the resin B and some colour pigment.
  13. Apply resin A
  14. Apply resin B and 2-3 layers of 450gsm CSM to mould
  15. Wait a while for it to cure (how long?)
  16. Pry from mould
  17. Trim edges
  18. Cut out holes using original dash as a guide.
  19. Realise surface is too shiny for a dash and cover with foam/vinyl.

Note: In all places resin has been used, catalyst has been used too before mixing.

Any tips/corrections appreciated.

ta
Chris


JamJah - 10/9/06 at 10:22 AM

Whats the problem, that dashboard looks dashing!