|
Group: Administrators
Posts: 134,
Visits: 614
|
Hi Davey,
If the osmosis is very extensive (which it sounds like it is) It may be worth trying a method such as sandblasting to remove the loose material and clean out the cavities of the 'pockets' otherwise you may well be spending a very long time with a grinder! This would need some trialing as there is a very good chance of causing further delamination by forcing the plys of the laminate apart and you could easily end-up with more of a problem than you started with. I wouldn't recommend using water as this is likely to increase the chance of 'peeling' and also may drive water into areas of the laminate reducing the quality of bond and also increasing the chances of future osmosis problems.
As for the resin choice... obviously an epoxy would be preferable due to it's increased bond strength over polyester, most epoxy resin systems are likely to perform adequately for this application as it is not particularly structural, the ultimate resin would probably be our rapid repair resin as this has incredibly high bond and flexural strength (it also cures very quickly which is useful especially if you are working with the resin outside) Obviously this performance comes at a price and I would imagine that our EL2 resin system would do the job perfectly well if you are more price sensitive.
@FLD - Eastcoast fibreglass sure are a good bunch! I've sure there guide on osmosis repair is well worth taking a look at.
Good luck with the repairs it sounds like you have your work cut-out over the next 6 weeks!
Paul Statham
Easy Composites / Carbon Mods - Technical
|