Chapman’s Flux Thinner – Gold Smelting & Black Sand Refining Flux Additive for Cleaner Metal Pours

Improve your metal pours and keep your molten material flowing smoothly with Chapman’s Flux Thinner. This refining additive helps maintain the proper consistency when working with gold concentrates, black sands, ore, and other smelting materials.

Flux can sometimes become thick during the smelting process. Chapman’s Flux Thinner helps liquefy the mixture so molten material pours more easily, reducing splashing and improving the overall quality of your metal pours.

This product is commonly used by gold prospectors, refiners, and metal casters who want cleaner pours and better-looking bars when melting down concentrates or processed ore.

Chapman’s Flux Thinner works especially well when used alongside Hank Chapman’s Flux, but it can also be used with other common smelting fluxes such as borax.

Product Details

Item Code: SO924
Size: 4 oz or 16 oz
Manufacturer: JSP Chem
Form: Powder additive

What It Does

Helps keep smelting materials liquefied
Improves flow during metal pours
Reduces splashing during smelting
Helps produce cleaner, smoother metal bars
Improves recovery from black sand concentrates

Typical Use Ratio

A common rule of thumb when mixing:

5 parts flux
½ part flux thinner

Approximately 10% thinner by volume.

(Not by weight.)

Ideal For

Gold prospectors
Black sand refiners
Gold smelting hobbyists
Precious metal refiners
Metal casting workshops
Ore and concentrate processing