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Liquid & Paste Soldering Fluxes

Discover our top-quality collection of soldering fluxes at WeldingMart, essential for achieving clean, strong, and reliable joints in your soldering projects. Our premium fluxes are designed to prevent oxidation, promote better flow, and ensure superior adhesion between metals, making them indispensable for both professional and DIY applications.
  • Harris Stainless Steel Liquid Soldering Flux - Four Ounce Bottle - (6 Pack) - 331929 - WeldingMart.com

    Harris Stainless Steel Liquid Soldering Flux - Four Ounce Bottle - (6 Pack) - 331929

    $74.16
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  • Harris Water-Soluble Soldering Flux - Half Pound Jar - (12 Pack) - 331934 - WeldingMart.com

    Harris Water-Soluble Soldering Flux - Half Pound Jar - (12 Pack) - 331934

    $117.60
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  • Harris Petroleum-based Paste Soldering Flux - Two Ounce Jar - (30 Pack) - 331770 - WeldingMart.com

    Harris Petroleum-based Paste Soldering Flux - Two Ounce Jar - (30 Pack) - 331770

    $181.20
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  • Harris -General-Purpose Liquid Soldering Flux - Four Ounce Bottle - (6 Pack) - 331928 - WeldingMart.com

    Harris -General-Purpose Liquid Soldering Flux - Four Ounce Bottle - (6 Pack) - 331928

    $74.16
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  • Harris Water-Soluble Soldering Flux - One Pound Jar - (12 Pack) - 331933 - WeldingMart.com

    Harris Water-Soluble Soldering Flux - One Pound Jar - (12 Pack) - 331933

    $161.04
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  • Harris Stay-Clean Liquid Soldering Flux - One Gallon Jug - SCLF1G - WeldingMart.com

    Harris Stay-Clean Liquid Soldering Flux - One Gallon Jug - SCLF1G

    $144.68
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  • Harris Bridgit Paste Soldering Flux - Four Ounce Jar - (24 Pack) - BRPF4 - WeldingMart.com

    Harris Bridgit Paste Soldering Flux - Four Ounce Jar - (24 Pack) - BRPF4

    $156.00
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  • Harris Stay-Clean Paste Soldering Flux - 4 Ounce Jar - (24 Pack) - SCPF4 - WeldingMart.com

    Harris Stay-Clean Paste Soldering Flux - 4 Ounce Jar - (24 Pack) - SCPF4

    $165.12
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  • Harris Stay-Clean Liquid Soldering Flux - 16 Ounce Bottle - SCLF16 - WeldingMart.com

    Harris Stay-Clean Liquid Soldering Flux - 16 Ounce Bottle - SCLF16

    $177.36
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  • Harris Stay-Clean Liquid Soldering Flux - Four Ounce Bottle - SCLF4 - WeldingMart.com

    Harris Stay-Clean Liquid Soldering Flux - Four Ounce Bottle - SCLF4

    $208.80
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  • Harris -Bridgit Paste Soldering Flux - One Pound Jar - (12 Pack) - BRPF1 - WeldingMart.com

    Harris -Bridgit Paste Soldering Flux - One Pound Jar - (12 Pack) - BRPF1

    $209.28
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  • Harris Stay-Clean Paste Soldering Flux - One Pound Jar - (12 Pack) - SCPF1 - WeldingMart.com

    Harris Stay-Clean Paste Soldering Flux - One Pound Jar - (12 Pack) - SCPF1

    $217.68
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  • Harris Stay-Clean Aluminum Soldering Flux - Four Ounce Jar - (24 Pack) - SCAF4 - WeldingMart.com

    Harris Stay-Clean Aluminum Soldering Flux - Four Ounce Jar - (24 Pack) - SCAF4

    $508.80
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  • Harris Stay-Clean Liquid Soldering Flux - 55 Gallon Drum - SCLF55

    Harris Stay-Clean Liquid Soldering Flux - 55 Gallon Drum - SCLF55

    $3,183.32
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Liquid & Paste Soldering Fluxes

Compare liquid and paste soldering fluxes for plumbing, repair, and general metal-joining work. Choose the formulation required by the base metals, solder, joint preparation, and cleanup method in the product instructions. For general solder-flux selection, browse our soldering flux collection and review each product's listed base-metal compatibility, residue-removal requirements, and cleanup instructions before choosing a formulation.

Shop Shop All Welding Wire & Rod or explore lead-free solder for related applications.

Liquid & Paste Soldering Fluxes Questions & Answers