I'm back !
............... Actually, I didn't go anywhere !
Just thought I would post another update of the project.
As I had learned a valuable lesson last time, ie; not to apply heaps of body filler to PU foam, I decided to use a slightly different approach. This time my plugs are the actual interior dimensions of the part required. As all materials seem to shrink when catalysed I was banking on shrinkage of 0.5mm or 1 mil ........ so I could feasibly apply at least 1mm of epoxy resin without too many problems.
These are the plugs now after just finishing applying my first coat of Pattern-Coat Primer. The 'Pattern-Coat Primer' is a type of epoxy resin that is aluminium based, so when it cures it cures solid and is heat resistant >>
Already things are looking promising, the resin went on quite thickly. But I'm not looking to add any thickness what so ever to these, so just a coat or two of resin should do it >>
Now we just wait ........... >>
It's inevitable that some of the resin will be soaked up by the PU foam, but that's the whole point. It will harden the foam and form a hard shell onto which I can put another layer on it. Any areas such as the gap where I glued the extra foam wedges, will be filled in at a later stage.
Now it's just a waiting game ............
TURK
............... Actually, I didn't go anywhere !
Just thought I would post another update of the project.
As I had learned a valuable lesson last time, ie; not to apply heaps of body filler to PU foam, I decided to use a slightly different approach. This time my plugs are the actual interior dimensions of the part required. As all materials seem to shrink when catalysed I was banking on shrinkage of 0.5mm or 1 mil ........ so I could feasibly apply at least 1mm of epoxy resin without too many problems.
These are the plugs now after just finishing applying my first coat of Pattern-Coat Primer. The 'Pattern-Coat Primer' is a type of epoxy resin that is aluminium based, so when it cures it cures solid and is heat resistant >>
Already things are looking promising, the resin went on quite thickly. But I'm not looking to add any thickness what so ever to these, so just a coat or two of resin should do it >>
Now we just wait ........... >>
It's inevitable that some of the resin will be soaked up by the PU foam, but that's the whole point. It will harden the foam and form a hard shell onto which I can put another layer on it. Any areas such as the gap where I glued the extra foam wedges, will be filled in at a later stage.
Now it's just a waiting game ............
TURK
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