Arcrefin PR 230 Two-Component Epoxy Primer
A two-component epoxy primer cured with an amine-functional hardener, used as the foundation coat on bare and mixed metal repairs. It carries the corrosion duty of the refinish system and takes the place of a separate one-component wash or etch primer.
Grade Arcrefin PR 230 | Range Automotive Refinish | Technology Two-component epoxy primer cured with an amine-functional hardener
Technical Data Sheet
Arcrefin PR 230
Issue 2026.09
1. Product description
A two-component epoxy primer cured with an amine-functional hardener, used as the foundation coat on bare and mixed metal repairs. It takes the place of a separate one-component wash or etch primer: the epoxy binder wets and protects bare metal without free acid, so it can be applied where cured polyester filler and bare metal meet on the same panel, and it can be sanded or overcoated wet-on-wet, where a wash primer is too thin to sand and has to be overcoated inside a fixed window. It carries the corrosion duty of the system, so it is the grade specified where a repair exposes bare steel, abraded aluminium and galvanised sheet together.
2. Features
- Adheres to bare steel, galvanised sheet and abraded aluminium in the same repair
- No free acid, so it can span bare metal and cured polyester filler on one panel
- Sanded after cure, or overcoated wet-on-wet inside the stated window
- Cured with its own amine-functional hardener, not with the Arcrefin AN 220 range
- 25 to 40 µm dry in two coats
3. Recommended uses
Bare and mixed metal repairs where a repair exposes cold-rolled steel, galvanised sheet and aluminium together, including panels where cured, sanded polyester filler and bare metal meet. It is applied over the metal and the filler together and is the base for Arcrefin PS 450 surfacer or Arcrefin PS 220 sealer.
Substrates. Bare and abraded cold-rolled steel, electro-galvanised and hot-dip galvanised sheet, abraded aluminium and aluminium alloy panels, cured and sanded polyester filler, and sound aged paint feathered back at the repair edge.
4. Typical properties
| Property | Typical value | Method |
|---|---|---|
| Technology | Two-component epoxy primer cured with an amine-functional hardener | Formulation |
| Binder and cure | Epoxy base cured with the matched amine-functional hardener | Customer or supplier protocol |
| Mixing | By volume with the matched epoxy hardener at the ratio on the label; not interchangeable with Arcrefin AN 220 | Customer or supplier protocol |
| Application viscosity, mixed and reduced material at 20 °C | 16 to 22 s, 4 mm flow cup, depending on gun setup | Customer or supplier protocol (4 mm flow cup) |
| Pot life of mixed material at 20 °C | 40 to 90 min, shortening to roughly half at 30 °C; confirm on the label for the hardener supplied | ISO 9514 |
| Dry film thickness, two coats | 25 to 40 µm | ISO 2808 |
| Drying before sanding | 4 to 6 h at 20 °C, or 30 to 40 min at 60 °C metal temperature | ISO 9117-1 (through-dry state) |
| Cross-cut adhesion on prepared steel, galvanised sheet and aluminium | Classification 0 to 1 (ASTM 4B to 5B) | ISO 2409 and ASTM D3359 |
| Neutral salt spray on primed steel, scribed | 240 to 500 h, scribe creep 2 mm or less, no blistering away from the scribe | ISO 9227, rated to ISO 4628-2 and ISO 4628-8 |
Typical values, not a specification. Values for each batch are given on its Certificate of Analysis.
5. Application
| Parameter | Guidance |
|---|---|
| Surface preparation | Degrease, abrade bare metal to clean sound substrate, feather the aged paint edge back, degrease again and dry |
| Mixing and reduction | Mix by volume with the matched amine-functional epoxy hardener, then reduce to spray viscosity as stated on the label |
| Method | Gravity-feed spray gun, 1.4 to 1.6 mm fluid tip, two coats |
| Applied film | 25 to 40 µm dry over two coats, with 10 min flash between coats at 20 °C |
| Drying | Overcoat wet-on-wet inside the stated window, or dry 4 to 6 h at 20 °C or 30 to 40 min at 60 °C metal temperature |
| Next step | Sand the cured primer and apply Arcrefin PS 450 surfacer, or apply Arcrefin PS 220 sealer over the cured primer; polyester filler is applied, cured and sanded before this primer |
Process. Mix by volume with the matched epoxy hardener and reduce to spray viscosity. Apply two coats by gravity gun with a 1.4 to 1.6 mm tip to 25 to 40 µm dry, flashing 10 min between coats at 20 °C. Overcoat wet-on-wet inside the stated window, or allow 4 to 6 h at 20 °C, or 30 min at 60 °C metal temperature, and sand before surfacer.
6. Storage and handling
Store base and hardener in their original, tightly closed containers in a cool, dry place, out of direct sunlight and away from heat. Shelf life is stated on the label and Certificate of Analysis. Handle and use the product in line with its Safety Data Sheet.
7. Safety and regulatory information
Read the Safety Data Sheet before use. Safety Data Sheets and regulatory declarations are issued by our technical centre against the product and batch supplied, so they are sent on request rather than published. Request a Safety Data Sheet or declaration.
This Technical Data Sheet is published for on-screen reference. The information is given in good faith from laboratory and application experience and describes typical values; it is not a specification and does not replace a trial on your own substrate and line. Arctic Materials may revise this sheet without notice. Issue 2026.09.
Technical Data Sheets on this site are for on-screen viewing. For a controlled copy, write to tech@arcticmaterials.com.
Other grades in this range
Need a Safety Data Sheet, a regulatory declaration or a grade specified to your line? Contact our technical centre.