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 41 
 on: October 27, 2014, 11:04:09 AM 
Started by Dshoe - Last post by steveoh
If it's all hardwood you outta pack it into 1 lb bags and sell it as wood dust for smoking meats…

 Cheesy


just wondering where you guys were purchasing your wood flour..the places i've looked don't seem to carry it . i have been using cabosil for the most part with some of the 403 mixed in for the most part for glueing .. but i need to start doing fillets and wanted top pick up some wood flour.. also used some saw dust from around the shop but i don't have the quantity i think i will need...also will sort out how to get some photos up here at some point and post the build progress...

DShoe,

I'm cleaning my dust system today and will have a few hundred pounds.  Don't happen to live in Anchorage do ya?  Grin


Neal

 42 
 on: October 26, 2014, 10:06:24 PM 
Started by Dshoe - Last post by BillW
Cabosil (powdered silica/quartz) and wood flour are thickeners. Silica is commonly added to thicken epoxy for gluing (scarphs, laminates, etc.) but has little effect on volume.

Wood flour increases epoxy's volume somewhat. Wood flour is seldom useful as an additive alone. Wood flour plus silica can create creamy pastes varying from syrup to peanut butter that make smooth fillers, fillets and fairing.

Silica and wood flour were the original two additives and can suffice for building a boat. But technology has advanced and microballoons and milled glass are improvements that make the science more complex.

My studies show that West Systems charges way way way too much for additives. I'm buying from Sys3.

There is value in buying from a reputable source. A contaminated batch will ruin your day/week/month.

Be wary of those that do not know the difference between chips, meal and flour.



 43 
 on: October 26, 2014, 09:30:04 PM 
Started by Dshoe - Last post by bleu
Epoxy is brittle, with cabosil it is brittle, Wood flour, micro fibers ext. help it out.

 44 
 on: October 26, 2014, 08:05:10 PM 
Started by Dave B - Last post by Dave B
I was planning on using pool noodles for my under deck floatation and although I have a bunch of them, I'm pretty sure I'm going to come up short.  Since this isn't the season to try and find them locally, do any of you that are in Oregon know of any inexpensive sources for polyethylene foam?  This stuff is used for a variety of uses including packaging and gets thrown away by the truckload if you can just find out where.  I probably don't need more than about 9 cubic feet.

Any thoughts and help would be appreciated.

Dave B

 45 
 on: October 26, 2014, 07:56:28 PM 
Started by Dshoe - Last post by Dshoe
what is the main purpose of the wood flour.. is it cheaper than cabosil and people started using it.. i've heard it has more flex than the cabosil.. being a bigger particle and not saturating the way cabosil does... could it be another west system marketing ploy...

 46 
 on: October 26, 2014, 06:31:07 PM 
Started by mike9080 - Last post by jerry bark
A couple of thoughts:

I do think you could scale back the dimensions of an 18' standard to around 15' and have it work ok.

I also seem to recall that okume or hydrotek plywood is available in 1/8. If I wanted to do what you are thinking I would do it with two layers one 1/4 and one 1/8 for the forward portion and follow the basic tolman approach. this would allow a 3/8 bottom panel.

On another track, have you considered the plan "Ben Garvey?" It might be just what you are looking for. It's not a tolman skiff but it is a well tested design and it is the right size/cost/hp for your design brief.

Cheers
Jerry

 47 
 on: October 26, 2014, 03:18:14 PM 
Started by Dshoe - Last post by bleu
I think that Dave's stuff mixed with a little cabosil will make an extremely strong epoxy mix good for fillets and filling voids.

 48 
 on: October 26, 2014, 11:01:26 AM 
Started by Dshoe - Last post by NSchlee
Ground up limestone, acorns, black rhino horn or seashells would also probably work


Sent from my iPhone using Tapatalk

In a pinch Dave's concoction can also be used as an aphrodisiac!  Grin Grin Grin Grin

Neal

 49 
 on: October 25, 2014, 07:39:52 PM 
Started by Dshoe - Last post by David Nolan
Ground up limestone, acorns, black rhino horn or seashells would also probably work


Sent from my iPhone using Tapatalk

 50 
 on: October 25, 2014, 07:30:41 PM 
Started by mike9080 - Last post by David Nolan
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