AGS makes brake line in three materials. All three do the same job. They differ in how well they resist rust, how easily they bend and flare, and what they look like.
Side-by-side
| Poly-Armour® coated steel | NiCopp® copper-nickel | Stainless steel | |
|---|---|---|---|
| Material | Steel tube with a zinc undercoat and a bonded PVF (polyvinyl fluoride) coating | Seamless 90-10 copper-nickel alloy | 316 polished stainless tubing with 304 stainless fittings |
| Corrosion | 30x salt-spray resistance | Never rusts | Highly corrosion resistant |
| Bending | EZ-Bend® construction bends by hand without kinking | Easiest to bend. No tools needed, kink-resistant | Stiffest of the three. Molybdenum-infused for easier bending and flaring |
| Flaring | Standard flaring tools | Standard flaring tools | Use a quality flaring tool made for stainless |
| Standards | See product specs | SAE J1650/J1677, DIN 74234, BS 2871 | See product specs |
| Best for | OE-style replacement at a great value | Rust-belt repairs, custom routing, DIY jobs | Restorations, show and performance builds, off-road, trailers & RVs |
Poly-Armour® coated steel
Poly-Armour has the strength and feel of OE steel line with much better corrosion protection. AGS tests show 30x salt-spray resistance, and the EZ-Bend construction lets you bend lines by hand without kinking. Why switch to Poly-Armour (C-780)
Skip the spring wrap. Spring-wrapped "armor" line doesn't add cooling or corrosion protection. Road salt and grime get trapped between the spring and the tube and can speed up corrosion.
NiCopp® copper-nickel
NiCopp is seamless 90-10 copper-nickel alloy. It doesn't rust, bends easily by hand, and flares cleanly with standard tools. It meets SAE J1650/J1677 and DIN 74234 and carries a lifetime warranty. Coils are available in 3/16" (CNC-325K) and 1/4" (CNC-425K) x 25'. NiCopp brake line replacement made easy (C-1550)
Stainless steel
AGS stainless lines use 316 polished stainless tubing and 304 stainless fittings, molybdenum-infused for easier flaring and bending. They're available as pre-flared lengths and 25' coils in 3/16", 1/4", 5/16" and 3/8". Stainless is the stiffest of the three materials, so plan your bends and use a solid flaring tool. Premium stainless brake lines (C-2320)
Quick picks
- Daily driver in a salt state, doing it yourself: NiCopp.
- OE look and value: Poly-Armour.
- Show car, restoration or trailer: stainless.
- Don't want to bend anything: EZ-Fit® vehicle-specific kits.
Sources: AGS C-780, C-1550, C-2320.