Aluminum U-frame with a sprue former. Two glass panels, one on each side, are held together with a pair of spring clips. Easy to assemble and ideal for use with LMR Rubber Set.
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Made of aluminum with a single or double cavity. Side holes provide an escape channel for the excess rubber during vulcanization.
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Smooth flat aluminum plates in different sizes to cover the top and bottom of the mold frames when vulcanizing. Sold in pairs.
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