< Flux

Oatey® H-20®5 Paste Flux

Oatey® H-20®5 Paste Flux is a water flushable soldering paste flux designed to clean and flux most commonly soldered metals. 100% lead free, H-205 is NSF listed for potable water applications. Its formula resists turning copper piping green and is excellent for large diameter copper pipe applications. Made in the USA. Oatey products have earned the trust of plumbing professionals for over 100 years.

Available in 2 variations

Key Features & Benefits

• Effective on most metals, excluding aluminum and stainless steel
• Compatible with common plumbing solder alloys
• For warranty product details, refer to the Oatey Limited Warranty document

Specifications

Brand:	Oatey
California VOC Compliant:	Yes
Product Type:	Water Soluble
Lead:	No
Color:	Yellow

More Specifications

Technical Resources (2)

• SDS Canada English
• SDS Canada French

More Downloads

Available in 2 variations

Frequently Asked Questions

What is the difference between #5 and #95 fluxes?

The #95 paste flux contains a silver solder tinning powder which helps fill in the joint when heat is applied, #5 does not.

What type of solder and flux should I use to solder stainless steel?

None. Oatey does not manufacture a solder or flux for this application.

What is the difference between water soluble and non-soluble (petroleum base) flux?

The water soluble flux is less corrosive, and self-cleans on the interior of the pipe as water flows through the lines. The water soluble flux has a narrower temperature range when heating, but it works with all the solders. 

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