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16 oz. H-20® 95 Water Soluble Tinning Flux
30143 - spec sheet
Features
- 100 percent lead-free paste flux cleans and fluxes copper piping
- Flux formulation provides cleaning effectiveness
- NSF standard 14 (performance) and standard 61 (health effects) certified
- Meets ASTM standard B-813 and is approved for use by model plumbing codes
- Effective on all metals, except aluminum and stainless steel
- Will not turn copper piping green
- Compatible with all common plumbing solder alloys
- Includes brush for easy flux application
- Good for large diameter copper piping
30143 - spec sheet
Manufacturer Resources
Product Specs
- Volume:
- 0.043
- Department:
- Plumbing
- Product Group:
- Plumbing Chemicals
- Product Subgroup:
- Sealants & Fluxes
- Product Type:
- Flux/Compound
- Product Weight:
- 1.158
OATEY 30143 – Frequently Asked Questions
1) Can Oatey H-20 95 tinning flux be used on potable water lines?
Yes. The Oatey 30143 H-20 95 flux is 100 percent lead-free and carries NSF certification to standard 14 for performance and standard 61 for health effects. It also meets ASTM B-813, which is the specification model plumbing codes reference for soldering flux on copper potable water tube.
2) Will Oatey H-20 95 flux work on stainless steel or aluminum?
No. H-20 95 water soluble tinning flux works on all metals except aluminum and stainless steel. For copper, brass, and copper alloy piping it is fine; for stainless or aluminum joints you need a different flux chemistry.
3) Is this flux OK with lead-free solder, or do I need a specific alloy?
The H-20 95 paste is compatible with all common plumbing solder alloys, so standard lead-free wire solder works with it. Because it is a tinning flux, it deposits a thin layer of solder powder as it heats, which helps the joint pull solder on larger diameter copper.
4) Will this flux leave green corrosion stains on exposed copper?
No. H-20 95 is formulated so it will not turn copper piping green, which matters on exposed runs in mechanical rooms or finished spaces. Being water soluble, residue rinses off with water rather than baking on.
5) Is a 16 oz tub of tinning flux too much for a small repair job?
The 16 oz size is sized for production work, large diameter copper, and MRO stock where a shop solders regularly. Net product weight is 1.158 lb with a volume of 0.043. For a single under-sink repair a smaller container is more practical, but service vans and maintenance shops typically carry the pint.
6) Does this flux clean the copper, or do I still have to prep the joint?
The paste cleans and fluxes copper piping as part of its formulation, but it is not a substitute for mechanical prep. Standard practice on copper tube is to abrade the tube end and the fitting socket first, then apply the flux to clean, bright metal.
How fast can I get the OATEY 30143 delivered?
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the OATEY 30143 come with a warranty?
Absolutely. The OATEY 30143 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the OATEY 30143?
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