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Trends in Metal Casting

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Jasonb:
The preformed strips need a heated tool to apply. You are basically ironing them into place with a hot ball which not only melts them onto the surface buut softens them so the follow curved junctions. You buy the wax in different radii.

https://www.artisanfoundry.co.uk/product_info.php?products_id=195

Beware the softer wax that comes in a block and is often sold for composites, this softens in the hand and is pushed into the corner like a putty then smoothed with a unheated ball. It is a lot softer so you may get problems with raming the sand and in Pats climate it will stay even softer.

The other option is you want to avoid sanding is to use a 2 pack putty, mix roll into a sausage and push into the corner. Then take a ball dippe din water and pull along the junction. This forms the radius and leaves the excess either sid ewhich is easily removed. Finish blend with a bamp paint brush. White Milliput used in the images below to get a cast look on fabrications

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