peanut butter

WIMUSKY

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Get some nuts and mash them until you have a paste. May need to add butter.... :)
 

Chris1956

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Gee, Poly and Epoxy putty are available pre-made. What is the application?
 

jbcurt00

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Gee, Poly and Epoxy putty are available pre-made. What is the application?

Assuming every application of either is the same, yes.

However, many of those pre-mixed fillers have talc in them. In polyester, used where it is exposed to moisture, talc isn't a good choice as the 'filler' in any filler product, pre-mix or not.

BigMac will be doing quite a bit of poly and glass work on his Capri, so why buy a product if you've got most of the necessary materials on hand to make it yourself?

Pre-mix is expensive by volume compared to you mixed

If you buy pre-mix you've got a fixed volume of filler. What if you buy too much or too little?

Pre-mix is a fixed consistency so you may need more then 1 type. Fine for fairing, medium for minor filling, and heavy (hairy) for structural filling along the edge of the deck, along stringers, between the hull sides/bottom and the transom, and making coved fillets at other 90 degree transitions.
 

BigMac1

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Assuming every application of either is the same, yes.

However, many of those pre-mixed fillers have talc in them. In polyester, used where it is exposed to moisture, talc isn't a good choice as the 'filler' in any filler product, pre-mix or not.

BigMac will be doing quite a bit of poly and glass work on his Capri, so why buy a product if you've got most of the necessary materials on hand to make it yourself?

Pre-mix is expensive by volume compared to you mixed

If you buy pre-mix you've got a fixed volume of filler. What if you buy too much or too little?

Pre-mix is a fixed consistency so you may need more then 1 type. Fine for fairing, medium for minor filling, and heavy (hairy) for structural filling along the edge of the deck, along stringers, between the hull sides/bottom and the transom, and making coved fillets at other 90 degree transitions.

Jbcurt00 thx for the "useful" info, much appreciated.
 

gm280

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BigMac1, as usual, there really is no set recipe for mixing PB or peanut butter for boating issues. Everybody mixes the same type ingredients but with different ratios depending on the project, where it is going and the weather, with both temperatures and humidity taken into account.

I mix mine using 435 Polyester resin with Cabisol and 1/4" Chopped fiberglass. And usually I mix say 500ml of 435 Laminating Polyester Resin with 5ml of MEKP (Methyl Ethyl Ketone Peroxide) and 500ml of Cabisol and finally the last ingredient is the 1/4" chopped fiberglass. Mix well and it is about the consistency of...well...peanut butter.

I usually mix the poly and MEKP first for about two minutes or so. Then mix in the Cabisol (fumed silica) a little at a time until smooth, then mix in the 1/4" chopped fiberglass until it all is like you want it. You can mix lots of fiberglass or just a little, it is your choice.

But that is just my recipe and others certainly will have their versions. JMHO!
 

Frank Acampora

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In the past I have used, because it was available and free, home insulation--color doesn't matter. It doesn't have the chemical to help it wet out, but with enough stirring it will wet out and be usable. It molds well and can be used to form fillets if you don't mind some sanding after the plastic resin cures. I find it great for large fill jobs such as building up a transom. Just remember that after the optimum mix, the more resin you have the weaker the final fiberglass.
 

Chris1956

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Marine putty should not contain talc. Talc is found in the automotive putty usually known as Bondo. As was noted, Talc is unsuitable for marine use. I normally use the premade putty, adjusting the thickness with resin to thin it or fillers to thicken it, as desired. Usually no changes are necessary.
 

fhhuber

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Jun 19, 2014
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Drop roasted peanuts in food processor... grind till its peanut butter. Dry roasted may need added oil as they remove some of the peanut oil when dry roasting. Salt and other additives are to taste.

Mattel used to sell a machine for kids to make their own peanut butter. It specified Spanish roasted, because that leaves the oil in the peanuts.
 
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