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Hi again,   one more time with a silly question. It is obvious to me that putty will be needed to 'even out' the hull. There seems to be so many choices, could someone point me in the right direction as to brand, make or whatever I should be purchasing?

 

Thanks in advance,  David

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Everybody picks their own poison. I prefer Interlux "surfacing compound," also called "glazing compound." Interlux is a brand of quality marine paint. This is a material with the consistency of thin, creamy peanut butter that is thinned with acetone. The acetone evaporates quickly, leaving a plaster-like hardened material which sands "like butter." It can also be worked, as with dried plaster.  It is not highly porus, like drywall paste, so it can be painted without problem. Tools clean up with acetone easily. A pint can lasts forever when modeling.  A tablespoon of acetone added to the can and left to sit overnight will return it to its consistence if it thickens some. (Do not leave the top off the can while working with it. That will cause surface drying in the can.)

 

For large fairing jobs, I also find epoxy resin thinned with microballoons or fairing additive works very well, although curing takes longer than fairing compound. My go-to epoxy flavor is WEST Systems products.

 

I'm not a fan of mixing sawdust into epoxy or PVA. Some are.  I've found PVA is "rubbery" and sands poorly, gumming up abrasive sheets.  Your mileage may differ.

 

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For general use in my shop I keep a can of Durham’s Rock Hard Water Putty on hand.  This comes as powder in a can and mixes with water to the desired consistency.  It is odorless, foolproof, and sands well.  It is stocked by my local big box home improvement store.  I see no reason why it would not work for you.

 

Roger

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