Solders & Fluxes

Industrial Soldering Technology Solutions

RF-800 - Electrical Soldering Flux

ALPHA® RF-800 provides the broadest process window for a no-clean flux with less than 5% solids content. ALPHA RF-800 is designed to provide excellent soldering results (low defects rates), even when the surfaces to be soldered (component leads and pads) are not highly solderable. RF-800 works particularly well with bare copper boards protected with organic or rosin/resin coatings and with tin-lead coated PCB's. ALPHA RF-800 is used successfully in both tin-lead and lead-free applications.

Key Product Features & Benefits: 

  • Highly active for excellent soldering and low defect rates.
  • Low level of non-tacky residue to reduce interference with pin testing.
  • Cleaning is not required which reduces operating costs
  • Reduces the surface tension between solder mask and solder to significantly reduce solder ball frequency.
  • Meets Bellcore requirements for long-term electrical reliability


Classified J Standard ROL0

Shelf Life - 12 Months from DOM


Product Number : RF-800

Prod. No. 115286
RF800 Flux - 125ml

£ 5.70

Currently in stock : 2 Lead Time : 10 Days

Prod. No. 115287
RF800 Flux - 250ml

£ 7.50

Currently in stock : 1 Lead Time : 10 Days

Prices exclude VAT

Data Sheets and Info

Health & Safety

Technical Bulletin

ROHS Certificate

Related Technical Documents


Q - What is colophony and can it cause any health issues?
A - Colophony is a generic term for rosin, this is the sap or sticky substance that derives from pine and spruce trees. Its "stickiness" lends itself to being used in a wide range of products. We have traditionally used this product in fluxes due to these specific properties it can however lead to breathing difficulties and skin sensitivity. Always use fume filtration when soldering and change filters regularly.

Q - What is the difference between rosins and resins?
A - The terms are often used interchangeably, but rosin is a naturally occurring substance, and resin is either a modified rosin or completely synthetic material. Rosins are plant based products and are subject to more natural variation than resins, however resins are commonly used in newer flux formulations due to their more consistent performance.

Q - How does IPCJ-STD-004B flux classification work.
A - Flux designation has three components. The first two letters, RO, RE or OR, represent the basic chemical composition: rosin-based, resin-based or organic acid-based. The next component is flux designation, L, M or H, which describes the flux’s activity level as low, medium or high, and the final component, 0 or 1, this indicates if halides are present.

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