Substantially increases the power of your vacuum casting machine by increasing the exposed surface area of the investment 2 to 3 times more than perforated flasks. Vacuum channels formed by Tivac Paper Flask Liners are extra-wide, creating an unobstructed air flow unlike the smaller zigzag channels formed by mesh materials. Provides over 40% more vacuum capacity than wax web, plastic web, or vacuum rods. Eliminates need for perforated flasks.

Burns out cleanly. Completely nonhazardous. Built-in collar replaces flask sleeves to speed up investing.

  • Tivac #4 fits 4″ x 6″, 4″ x 7″ and 4″ x 8″ solid-wall flasks.
  • Tivac #5 fits 5″ x 6″, 5″ x 7″ and 5″ x 8″ solid-wall flasks.

Sold in packages of 50.

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