Copper pays more than almost any common scrap. But the grade on your ticket, not the metal itself, decides your check. Two sellers can bring the same weight and walk out with very different payouts. This guide shows how to prepare copper scrap for a higher grade, step by step, so your load reads as bare bright instead of dirty number 2. Clean copper sells faster and quotes against live market prices.

Why preparation moves your copper up a grade

Copper carries a non-ferrous premium. It holds value because refiners recover it with little loss, but only when it arrives clean. Insulation, solder, paint, and steel attachments force the buyer to assume contamination. When a grader cannot verify purity by sight, the safe call is a lower grade. You absorb that doubt as a discount.

Preparation removes the doubt. Strip the jacket, cut the fittings, separate the alloys, and the same metal reads one or two grades higher. The work takes time, but it converts into price per pound. For a primer on where copper sits among other metals, see our guide on [ferrous and non-ferrous metals].

The grades you are sorting toward

Before you clean, know the targets. Buyers use ISRI nicknames, and the main copper scrap grades run on a clear ladder. Bare bright, code Barley, is clean uncoated wire with no oxidation and no fittings. It sits at the top. Number 1, codes Berry and Candy, covers clean No. 1 wire (Berry) plus heavy copper and tube (Candy), with no solder or paint. 

Number 2, codes Birch and Cliff, holds copper near 94 to 96 percent, with light solder, paint, or corrosion. Insulated cable, code Druid, sells on recovery, meaning the buyer pays for the copper inside the jacket, not the gross weight. Each step down is real money. For current bare bright and number 2 ranges, check our [copper price post].

Learn how to strip and clean copper wire

Insulated wire is where most sellers leave money behind. The jacket hides copper that grades as bare bright once exposed. Run thick cable through a wire stripper, manual or powered, and you turn Druid into Barley. For thin wire where stripping costs more than it returns, sell it insulated and let the buyer recover it.

Never burn insulation. Burned copper forfeits the bare bright copper price you were chasing. Fire leaves ash and oxidation, drops the metal to a burnt grade, and many buyers reject it outright. Burning also breaks environmental rules at most certified yards. Strip cold, keep the copper shiny, and sort stripped wire away from anything tinned or coated.

Group your stripped wire by thickness and finish. Keep bright, oxide-free strands in one pile. Move green or tarnished wire to a second. That single sort can lift a mixed bucket into two clean grades. For a full walkthrough on prepping any metal for top dollar, see our guide on [recycling metal for money].

Sorting tubing and fittings without losing grade

Plumbers and contractors move volume in tube, and tube grades on cleanliness. Clean, dry copper pipe with no fittings, paint, or solder reads as Number 1. Add a brass valve, a soldered joint, or old paint, and the same pipe drops to Number 2. The fix is a few minutes with a saw and a wire brush.

Cut off threaded brass fittings and set them aside as a separate brass grade. Brass pays less than copper, but mixed into your pipe it drags the whole load down. Scrape heavy paint and flux residue. Knock out soldered sections or cut past them. The current market rates for copper tubing scrap reward this sort.

Keep refrigeration and air conditioning line sets in their own pile. They often carry oil, steel, and aluminum fins that contaminate clean copper. Strip what you can, flag the rest for the buyer, and never hide a contaminated piece inside a clean bundle. One bad section can re-grade an entire bin downward.

This is how buyers price prepared copper

Copper does not have one sticker price. Buyers quote against the COMEX copper contract, which moves every trading day. From that benchmark they subtract a refining margin that reflects grade, volume, and recovery cost. Bare bright sits closest to the COMEX number. Each grade below it carries a wider spread.

This is why daily timing and clean grading matter together. A clean bare bright load on a strong COMEX day pays its best. The same metal, dirty and downgraded, eats two discounts at once. Ask any serious buyer to quote against the live market, not a flat board rate that hides their margin.

That spread is exactly why the buyer matters as much as the prep. A yard like General Metals Corp that quotes against live COMEX keeps your bare bright reading at its true value, not a flat board rate. 

Full loads vs mixed: who buys copper wire in volume

Volume changes your leverage. A full load of one clean grade quote is tighter than a mixed bin, because the buyer skips the labor of re-sorting your material. If you generate steady copper, separate at the source and sell in single-grade lots. The question of who buys copper wire at a fair rate comes down to scales and transparency.

Look for a buyer with certified scales and a live COMEX quote, not a back-room number. Ask how and when you get paid. Exporters who handle container volume should expect payment terms tied to the load, not a vague promise. Sellers across the Caribbean ship full containers to Miami for exactly this reason.

Sell prepared copper to General Metals Corp

General Metals Corp has bought and exported scrap from Miami since 1970, more than 55 years in the trade. The yard runs certified scales and quotes copper against live COMEX and LME prices, so your grade meets a real benchmark, not a guess. Payment goes out by wire transfer when the container is released.

Direct relationships with sellers in the Dominican Republic, Jamaica, and Trinidad keep container volume moving through one trusted buyer. Whether you strip wire on a job site or fill a container in the islands, clean copper meets a fair quote here. To plan a shipment, start with our guide on [how to sell scrap in Miami].

Knowing how to prepare copper scrap for a higher grade is half the payout. The other half is a buyer who prices it straight. Send General Metals Corp your volume and grade, and get a copper quote tied to today’s COMEX market.

Technical evaluation checklist

• Wire stripped cold, never burned, sorted bright vs tarnished
• Fittings, valves, and brass cut off and binned separately
• Solder, paint, and flux removed from tube
• Steel, aluminum, and oil-bearing line sets isolated
• Grades kept in single-grade lots for volume quotes
• No contaminated piece hidden inside a clean bundle
• Quote requested against live COMEX, not a flat board rate

You did the work to grade your copper up. Don’t hand the margin back at the scale. General Metals Corp quotes your load against live COMEX and LME, runs certified scales, and pays by wire on container release, the same terms Caribbean exporters have shipped to Miami on for over half a century. Send your volume and grade today and get a straight quote.