< 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. Safe for use on potable water applications. Can be used on copper piping without discoloration. Excellent for large diameter - copper pipe applications. Oatey products have earned the trust of plumbing professionals for over 100 years. Made in the USA.

Available in 4 variations

Key Features & Benefits

• Effective on most metals, excluding aluminum and stainless steel
• Compatible with common plumbing solder alloys
• Can be used on copper piping without discoloration
• For warranty product details, refer to the Oatey Limited Warranty document

Specifications

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

More Specifications

Technical Resources (8)

• Submittal
• SDS
• SDS Canada English

• SDS Canada French
• SDS Spanish
• FAQ
• LEED Green Sheet
• Product Information

More Downloads

Available in 4 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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