(3) Use a cast iron flask to hold the sand. Make sure the seal between the two halves of the cast iron flask is clean. 1) This pair of flask molds are highly durable and sturdy containers made of solid cast iron.
2-Piece Cast Iron Flask Mold Frame Sand Casting Jewelry Making Metal Casting
(3) Use a cast iron flask to hold the sand. Make sure the seal between the two halves of the cast iron flask is clean. 1) This pair of flask molds are highly durable and sturdy containers made of solid cast iron.