hi Larry , how ya going ?
just a quick question ...
any idea how many layers of glass filler resin would soak into , when completing a fin panel , prior to cutting it out ?
cheers
ben
[quote="$1"]
hi Larry , how ya going ?
just a quick question ...
any idea how many layers of glass filler resin would soak into , when completing a fin panel , prior to cutting it out ?
cheers
ben
[/quote]
Hi Ben , Hope all is well my friend. Not sure if you are talking about ProBox or Center Box fins. ProBox is 18 layers of 7 1/2oz and center Box is 30 layers of 7 1/2oz.
Mahalo, Larry
yes , i’m well
any fin , it doesn’t really matter …it was just a question to figure how wet / dry my lam can be [with / without filler [‘sanding’] resin being added] , prior to cutting out a panel …
ie:
if the panel is a little ‘dry’ , will it delaminate on cutting out ?[on one of them , i didn’t have any filler resin to add to the panel , after i had lammed it …it was 36 layers of 4 and 6oz , for side fins ] …will it delaminate on cutting out ?
cheers for your help !
ben
Hi Ben, I understand now your request better. Yes your fin will split at the tip mainly because a dry lamination has limited machanical bonding power. If you already have the panel done and want to try and save the material and make a fin. Foil the fin as much as you can with a finer grit hard disc, this will help in not eating up the dry lamination which is lacking in resin to give you density to grind against. After you are done with the fin, glass both sides with 2 layers only. This will give you a shell around the fin in the same manner as doing a wooden fin. This should give you some use out of the panel you already have done, but in the future laminate less layers of glass at a time so you get better glass saturation. Hope this helps my friend. Mahalo, Larry
yes , that's very helpful Larry , thanks for your experience !!
2 lessons i learnt from this last panel
1. don't use old resin [even if heated , it will not flow as smoothly , and 'go as far' [for want of a better term]
and
2. especially with pink pigment , and also with carbon fibre , a bit MORE resin is needed in the mix [something i underestimated when laying up the panel , and hence , the aforementioned 'dry spots']
As Larry said , laying up a few less layers at a time ...... it would have been a wiser move , in view of the 'less spreadable' [tech speak] nature of my outdated resin .
if this helps someone else not make the same mistakes , then ...STOKED !!
...cheers !
ben 'dry spots' chipper
Hey Ben, A little trick when using old resin. Add styrene, 15 cc to a Quart. Adding the styrene will change the vis of the resin to the thinner side. Don't over add harder or the resin will never dry. Mahalo,Larry
cheers for that ,
i'll see if colin my supplies guy has any , might be handy to have on hand , in the unlikely situation of me letting my resin expire ever again ??!!
hiya again Larry !!
just another question ...
your 'elliptical' model fins ...
can you tell me a bit about how they go , what they do , what boards you've tried them in , so far , please ?
[i ask , because , i'm making an adjusted [smaller , ?different raked? ] pair of sideys for myself , hope you don't mind ??....'imitation is the sincerest form of flattery ???' [WHO said that?]
cheers Larry !
ben