can you glaze a new crucible with this product?

Yes, It is actually a good idea to "season" a new crucible before use. Slowly heat the crucible then sprinkle some borax inside, heating evenly to a nice orange/red glow. Sprinkle more borax and heat again. Continue those steps until a good coating ensures. It will have a glassy look once cooled. The more you use the crucible to smelt metals, you sprinkle borax with it to help flow and also separates impurities and this will continue "seasoning" it.

How do I mix this for basic silver sodering and sweat sodering pieces together?

The way I use it, I place a small amount in a small dish (shallow cereal bowl) then add small amounts of water at a time, while mixing or "mushing" it together. It goes from dry, to a thick paste, to a thin paste, then eventually you want the consistency of heavy cream.. To use, make sure your surface is very clean and no gaps. Then using a cheap paintbrush (like the kind in those cheap watercolor kits) just brush on the flux over the area you're soldering. For sweat soldering, brush a very thin coat of flux on your silver sheet, then place your solder chips throughout. (the chips/flakes will stick to the flux). There are a ton of videos on YouTube showing this process. Good Luck.

Can this be used in any type of metal melting?

I found it not helpful in the metal metaling process. I use it to coat my tools.

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Borax Flux 8 Oz. Container

Product ID: 13931519

📦Compact 8 oz container

🔥Controls oxidation precisely

🛠️Trusted by jewelry pros

MX$1015

Duties & taxes included

In stock

Sold byAmazon MexicoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Mexico.

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Description

🔥 Elevate your melt game — flawless finishes every time!

COMPACT CONVENIENT - 8 oz size fits neatly into any workspace without clutter
OXIDATION CONTROL MASTERY - Prevents unwanted oxidation during melting for flawless results
PERFECT CRUCIBLE COMPANION - Glazes crucibles effectively, extending their lifespan
JEWELRY MAKERS ESSENTIAL - Highly rated by artisans for consistent, professional finishes
TRUSTED QUALITY FROM GROBET USA - Reliable performance backed by a reputable brand

Borax Flux 8 Oz. Container by Grobet USA is a professional-grade flux designed to control oxidation during melting processes, making it an essential tool for jewelry makers and metalworkers. Its compact size and proven effectiveness in glazing crucibles ensure both convenience and durability, backed by strong customer satisfaction.

Specifications

Best Sellers Rank	#427,244 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,237 in Hardware Sealers
Customer Reviews	4.5 out of 5 stars 139 Reviews

Reviews

S**Y

Works great

A must for jewelry makers

13.11.2025

E**C

Glazed my crucibles successfully.

Great product, great price, exactly what I expected.

1.10.2018

C**4

Great Product

Easy to use and handy. Much better than homemade borax mix flux I used to make and use. Works perfectly!

11.04.2014

D**E

Good but small quantity can buy a huge box at Walmart for 10$ but didn't find out until after.

Small portions for the cost.

4.11.2020

M**J

much needed very important

this is necessary for the crucible

19.06.2022

D**E

very good

very good thank you

8.11.2021

E**R

Five Stars

GREAT BORAX ESPECIALLY IF YOUR LIKE ME AND TENT TO LEAVE IT OUTSIDE SOMETIMES

6.03.2018

O**S

Three Stars

as advertised not sure I can tell that it does much

5.05.2015

M**H

Good buy.

8.08.2026

C**N

Producto de diez

La compre para atacar insectos Y funciona muy bien

3.11.2020

A**R

Good

Good.

20.03.2021

K**R

Forge work

Impurities in molten metal are easily separated and scooped out using this stuff. Forge welding becomes easier with it too.

22.01.2025

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

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The delivery time was excellent, and the packaging was secure.

2 months ago

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The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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MX$1015

Duties & taxes included

In stock

Sold byAmazon MexicoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Mexico.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Abdullah B.

Great price for an authentic product. Fast international shipping too!

3 weeks ago

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

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