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.
Made of aluminum with a single or double cavity. Side holes provide an escape channel for the excess rubber during vulcanization.
Smooth flat aluminum plates in different sizes to cover the top and bottom of the mold frames when vulcanizing. Sold in pairs.