My little piece of peace

[masalai]

All the materials (except hardener) and more coming...

[TeddyDiver]

You don't use microfibres?

[masalai]

Going by the numbers these should be next - epoxy, hardners, tape...

[Manie B]

He he

i vote for story #1


**** no

maybe #4


oh what the hell just look at the pics









xxx

[masalai]

TeddyDiver - - Huh? hehehe
Manie B - - we do not need all that real-estate for "effect" a couple of "-" separated by spaces - - - - is more effective and saves RSI on the mouse hand - not so much scrolling down and a happy way to distribute "minuses"...

[Manie B]

He he i have made up my mind finally, its number ONE ! and i am writing all of this in one line as well, sorry Mas just a bit of fun on a Saturday morning and then back to work. There is no justice in this world, last year i had very little work, this year i have hopelessly too much, farkit how do things work. Any way i enjoy all your pics as well as the ones

[TeddyDiver]

Originally Posted by masalai

Huh? hehehe

Actually Cab-O-Sil is for that, and quite a good ingredient in pastry. However it doesn't have any structural properties after baking so no need for dental care after having a Danish

[masalai]

and by the "plastic" taste seems to be what McDonalds use a lot in just about everything?

I posted some images of the racing boats on " http://www.boatdesign.net/forums/ope...-23233-46.html " and could not upload the videos as they were 33MB but the noise seemed louder than at a drag meeting (and I do not mean drag queen - - but I suppose that too could apply)

[Fanie]

Mas, looking better and better all the time. I can feel your butt on the water

The way this thread is going I can just see it's going to become a pay site soon She's got nice eyes tho. Noticed afterwards. I don't believe the stories Manie. That's written by some guy living in lala land.




Get better education while you nip one off ?

[masalai]

What Fanie, the "birthday sex" story? - - I thought it was written by a male (gay one?) as I have yet to encounter a female with that attitude? have you? (yes - then you didn't measure up?) or (no - see, must be a gay boy, as I have not seen or heard either - else I would be still there)...

[Boston]

hey thanks for the close ups
the chain plate attachment at the cross tie !
why the change in grain direction of the fill wood ?
and what kind of wood was it ?

Cab o sil
is a synthetic, amorphous, untreated fumed silicon dioxide. Because of its inert nature, it has been used in food such as kethcup as well as in shampoo and some cosmetics. When mixed into liquid resin, Cabosil functions as a resin thickener (flow control agent) and sometimes as an anti-settling, anti-caking agent. Its applications are many, including thickening paint, dyes in the screen printing industry, epoxy, polyester, urethane, water, hand soap and shampoo. It is a versatile thickening agent that has even been used to "thicken" fresh water and sea water. Eager Plastics supplies quatities of Cabosil as small as 8 ounces.

Cabosil is an extremely fine particle size silica (silicon-dioxide / SiO2) aerogel. It is pure white and free-flowing. Each volume contains about 94% dead air space, with a density of only 2.3 lb/cu ft. On the other hand, water (density 62.4 lb / cu ft) weighs about 27 times more.

Q-CEL® products offer formulators flexibility in polymer composites. The addition of hollow spheres to fiberglass reinforced plastics (FRP), epoxy, compounds, and urethane castings can provide weight reduction cost savings and improved impact resistance. Insulating features of hollow spheres also work to the chemists’ advantage in thermal shock and heat transfer areas. They are suited for many applications, including fiberglass reinforced plastics, urethane foams, putties, cultured marble and adhesives.

can you define the three types of tape you show
I got wood down
but Im completely clueless when it comes to stitch and glue glass reinforced resins

and why the two different brands of fillers

the Technirez folks do not like there stuff being copied from the technical data sheet
it seems like a typical two part epoxy with hardener options
that can handle a wide range of application temps

[masalai]

End-grain balsa as it comes in DuFLEX panels - scrap pieces were used and glued together...

There is no "stitch" except in using screws temporarily to hold parts in place when gluing and are removed before taping... I think the big roll is 750 grams/sq metre quadraxle (spelling? but is cloth with 4 different thread directions - "normal" cloth has the warp and weft whilst this has two more at 45 degrees) - the smaller roll is about a third less (400gsm?) and the little roll is "peel-ply" (polyester taffeta) we buy it by the large roll - about 50 inches wide and 40 metres long and use a hacksaw to cut sections to apply over the taping joins and roll over that, with a little metal roller, to remove any air bubbles and ensure the tape is smoothed down and 'fair'... The stuff in the bags (cab-o-sil) was "inherited" I think... it smells a bit and has an unpleasant touch... We will use most of that 200 litre (45 gallon) drum and some more in 20/25 litre drums in the build.... The DuFLEX is NOT waterproof and the sheets get a liberal coating of epoxy squeegees on in several coats inside and out just before bogging & painting (or sealing as a "void") just after removing all the peel-ply on that area... (the peel-ply protects the surfaces and keeps grease (sticky fingers) dirt and other contaminants out - and makes an excellent temporary "white board"

[Boston]

no I can see that Duflex is a foam core product
definitely not water proof without some help

I also followed the balsa core thread extensively

looks from all the pictures like a foam core with a thin wafer-board on each side

when you join pieces do you trim out the foam at the edge and add a stiffener or monolithic biscuit fitting between the outer skins across the joint

or are they just butted together they way they come off the saw

[masalai]

No, No , no - yes, Boston, DuFLEX is BALSA cored.... at least it is here... and to make a big block to angle-grind into a shape, several (lots) are glued together - light and very strong... In the end it will be sealed, glassed and capable of holding the whole weight of the boat at each point (chainplate) there will be 7 all up, with the 2 just aft of midships likely not being used... What may look like foam is epoxy with micro-spheres...

[judy]

Originally Posted by masalai

I think the big roll is 750 grams/sq metre quadraxle (spelling? but is cloth with 4 different thread directions - "normal" cloth has the warp and weft whilst this has two more at 45 degrees) - the smaller roll is about a third less (400gsm?)

The larger roll looks like weft triaxial, as I cannot see any warp threads at the cut edge in the photo. (edit: what you see running in the warp direction is polyester stitching to hold it all in place.) The smaller width tape looks like double bias.

Here's a diagram showing the thread orientation of some different types of glass reinforcements: