Best Plastic Casting Molds in 2026

Size information: the outside dimension is 50 x 50 x 50 mm and the inner is 40 x 40 x 45 mm, the capacity is about 1000 g gold or 500 g silver, general size can meet your most melting or casting needs for metals

"Durable material: the main material is graphite, hardly ash content ensures that the metal purity will not be affected during the metal refining process; Fast cold and hot conditions, with good thermal stability, exquisite refining effect"

"Nice performance: our casting ingot crucible mold has nice thermal conductivity, which can highly shorten the melting time and save energy, and withstand 2000 degrees Celsius, nice acid and alkali resistance, nice corrosion resistance, impact resistance, 89 MPA compression resistance, and 48.7 MPa flex resistance, nice impact resistance performance to ensure the reliability of product quality"

【Widely Used】Extremely versatile, ideal loaf ingot mold for making gold, silver, copper, aluminum, brass and so on. Great for smelting, casting, pouring, melting and refining various metals.

【Upgrade Design】Designed with humanized handle, allows you better control and operate during casting iron while avoiding the scalding caused by melting casting. In additional, specially designed with slight wall tapered sides for easy and better metal ingot removal.

【Unique Mold】This mold is great, can hold up to 100 troy ounces of gold. This steel mold is not smooth inside the cavity like graphite molds, but you turn the mold over and the bar will drop out, will not stick in mold.

Specification: Includes 2 pieces of ingot moulds in the same sizes. Each piece for 1000g Gold / 535g Silver; Inner 90 x 40 x 20 mm (2.43 fl oz).

Selected Material: Graphite ingot molds are made from high density fine grain graphite, 99.95% Graphite. Ash content less than 0.1%. Better for Refining than Silicon Carbide Graphite Crucibles.

Well-made: The smooth cavity finish of the graphite ingot mold makes the ingot very easy to remove without sticking to the mold itself.

Specification: For 1250g Gold / 585g Silver; Inner 105 x 35 x 20 mm (2.48 fl oz).

Selected Material: Graphite ingot molds are made from high density fine grain graphite, 99.95% Graphite. Ash content less than 0.1%. Better for Refining than Silicon Carbide Graphite Crucibles.

Well-made: The smooth cavity finish of the graphite ingot mold makes the ingot very easy to remove without sticking to the mold itself.

Quality material: our graphite casting ingot mold is mainly made of graphite, hardly ash content ensures that the metal purity will not be affected during the metal refining process; Fast cold and hot conditions, with good thermal stability, exquisite refining effect

Ingot mold dimension: capacity: 5-6 ml, outside dimension: 88 x 47 x 8 mm (3.45 x 1.85 x 0.31 inch), inner dimension: 63 x 38 x 4 mm (2.48 x 1.5 x 0.16 inch), suitable for melting and casting metals such as gold, silver, brass, aluminum, copper, zinc, plumbum, etc.

Exquisite performance: the mold has nice thermal stability for fast heating and cooling, well corrosion resistance to strong and alkali, good thermal conductivity properties which highly shorten the melting time and save energy, exquisite impact resistance performance to ensure the reliability of product quality

Quality Graphite Material: made of quality graphite material, the ingot molds won't affect the metal purity during the metal refining process; Fast cold and hot conditions, with good thermal stability, producing exquisite refining effect for you

Detailed Size Information: the outside dimension of heart graphite casting mold is about 50 x 50 x 20 mm/ 1.97 x 1.97 x 0.79 inch, the inner is about 10 mm high; The cross graphite casting mold is about 88 x 47 x 8 mm/ 3.45 x 1.85 x 0.31 inch, the inner is 63 x 38 x 4 mm/ 2.48 x 1.5 x 0.16 inch; The star graphite casting mold is 50 mm/ 1.97 inches in length and width, 11.45 mm/ 0.45 inch on each side, proper in size for you to cast metal and make your own jewelry

Good Performance: the graphite molds for casting metal has nice thermal stability, which can withstand 2000 degrees Celsius, shorten the melting time and save energy, has good impact resistance and corrosion resistance to acid and alkali, good in performance to ensure the reliability of product quality

"What you get: this package includes 1 piece of 5-in-1 graphite casting ingot mold, 1 piece of 1 kg graphite ingot crucible mould, and 2 pieces of graphite stir rod sticks, totally 4 pieces in 1 package, convenient combination set to meet your DIY needs for melting casting refining metal jewelry gold silver"

"Size information: the 5-in-1 metal refining scrap mold measures about 72 x 57 x 12 mm, and the 1 kg crucible mould is 100 x 50 x 25 mm in outer diameter, and 90 x 40 x 20 mm in inner diameter; Each crucible stir rod is about 12 inches/ 30 cm long, and 5/16 inch/ 0.8 cm in diameter, please check these sizes carefully before purchasing"

"Wide range of applications: these graphite ingot molds are suitable for experiments and smelting of non-ferrous metals, including gold, silver, copper, aluminum, and so on, which are designed for lab, test analysis and other purposes; Considering the product size, it is more suitable for small-capacity metal melting projects"

High quality graphite ingot mold

you can select the size you need, and the size you can find on the listing photo

for gold and silver melting after the formation of gold and silver pieces

Inside size of the mold is 1-3/16" X 1-1/8" X 1/4" deep.

Machined graphite ingot with a steeper wall taper than our normal molds for better metal removal

This Mold is great for making Heart bars or Necklace Pendant or Charm then customize it

Selected stable materials:Graphite molds are made of high-density fine-grained graphite,99.95% Graphite.

Wide application: Graphite molds take liquid metals of precious metals, such as gold, silver, metal, aluminum, copper, brass, zinc, etc

Well-made:The smooth inner wall of the graphite mold ensures the loss of metal as much as possible, making the cast metal easier to demould.

This Graphite Conical Mold is Cone shaped, 15/16" across the top and 9/16" Deep. Perfect for smelting small amounts of Black sands with your favorite flux or just making buttons. This mold has one cavity

8" Ingot Mold Mould is equipped with a wooden handle, which is safer to use.

8" iron Ingot Mold Mould, more durable than graphite crucible.

There are three iron blocks, you can easily adjust the capacity of Ingot Mold Mould.

[Ingot Mold Size] Outer size:50x50x50mm/1.97x1.97x1.97inch; Internal dimensions: 40x40x45mm/1.57x1.57x1.77inch Capacity: 60ml Capacity: Gold 1000g Capacity: Silver 500g. Package:1x Graphite Casting Melting Ingot.

[Graphite Mold Feature] Melting and casting metals such as Gold, Silver, Brass, Aluminum, Copper, Zinc, Plumbum, etc. Graphite oil bath, ingot gold, silver, copper, aluminum, glass, etc., non-sticking and not bursting, high-purity, high-density, high-strength graphite, fine processing, fine and smooth surface without visible pores.

[Casting Mold Composition:]99.95% Graphite. Ash content less than 0.1%. Better for Refining than Silicon Carbide Graphite Crucibles.

Muti-Purpose Application --- Use on experiments, smelting, casting, pouring, melting and refining of non-ferrous metals, such as gold, silver, copper, aluminum, copper, brass and so on. Also work as graphite crucible melting into non-ferrous metals, test analysis, as the ingot mold and other purposes.

Superior Material --- Made of high-quality cast iron with great thermal conductivity, acid and alkali resistance, strong corrosion resistance, deformation protection. Withstand 2000 degrees Celsius, have a better refining effect than silicon carbide graphite crucibles, greatly shorten the melting time, improves the efficiency and save energy.

Professional Design --- Designed with slight wall tapered sides for easy ingot removal. Easily turn the mold over and the bar will drop out, will not stick in mold. The humanized handle design allows you better control and operate during casting metals, keeping better distance to avoid the scalding caused by melting casting.

This custom mold is as you can see made in the shape of the State of Texas

Top to bottom its 2 1/2" & 2 1/2" across. 1/4" deep.

Ideal for casting a 3D image

Works great with Gold, Silver, Copper, Aluminum, Tin and other precious and non precious metals

Measures 30 mm x 30 mm x 5 mm

HIGH DENSITY GRAPHITE MOLD

MADE IN THE USA!!!

EACH MOLD HAS 4 CAVITIES 1oz 2oz 5oz 10oz

Inside size of the mold is 1-3/16" Tall X 11/16" wide X 1/4" deep. The cross shaft is 1/4" in width

Machined graphite ingot with a steeper wall taper than our normal molds for better metal removal.

6 Cavity 1 Troy Ounce Silver Round Mold

High Density Graphite

Tapered Sides for Easy Ingot Removal

Ideal for casting a 3D image

Works great with Gold, Silver, Copper, Aluminum, Tin and other precious and non precious metals

Measures 30 mm x 30 mm x 5 mm

Graphite casting mold

Ideal for casting a 3D image

Works great with Gold, Silver, Copper, Aluminum, Tin and other precious and non precious metals

Measures 50 mm x 50 mm x 13 mm

2 oz GOLD COFFIN / CASKET Mold

High Density Graphite Mold

Inside size of the mold is apx 1-5/8" tall, 11/16" wide at the widest point, 7/16" wide at the top, 5/16" wide at the bottom X 1/4" deep.

Inside size of the mold is apx 2-1/6" tall/long, 7/8" wide at the widest point, 5/8"+ wide at the top, 7/16" wide at the bottom X 3/8" deep.

Machined graphite ingot with a slight wall taper for better metal removal. This Mold is great for making Coffin bars or Necklace Pendant or Charm then customize it. The weight of each bar depends on what metal your working with and how full you fill each cavity.

Full to the top plus a bit more will give you a apx 5 Troy ounce Gold Bar. Silver will be like 2.5 oz+.

Ingot Molds For Casting Metal: Made of high- quality materials, and will not be easily damaged.

Crucible Mould For Melting: With small size and light weight, convenient to carry and store.

Graphite Refining Melt Mold: It can well meet your DIY melting, casting and refined metal needs.

Electrical Conductivity: Our melting ingot has thermal shock resistance, electrical conductivity and thermal conductivity, which can smelt metals well.

Wear Resistance: Our ingot mold has good wear resistance, strong lubricating properties and durability. It also has long service life, and can be used for a long time, so you are satisfied.

High Density: Our graphite ingot mold has high purity, high density, high mechanical strength and strong chemical stability, so in the process of metal smelting, there will be no chemical reaction with the metal.

Lasts for 30+ pours

Made of high density fine grain graphite

Smooth cavity finish

Ideal for casting a 3D image

Works great with Gold, Silver, Copper, Aluminum, Tin and other precious and non precious metals

Measures 75 mm x 75 mm x 20 mm

Lasts for 30+ pours

Made of high density fine grain graphite

Smooth cavity finish

Lasts for 30+ pours

Made of high density fine grain graphite

Smooth cavity finish