Chisel out crusted buildup
Knock off hardened buildup with a hammer and chisel, and strip out lining too damaged to save.
Career profile
Refractory Materials Repairer
Refractory repairers rebuild the heat-resistant lining inside industrial furnaces and vessels that hold molten metal.
The craft is in applying the material, whether you pack it down tight, spray it on, or cast a new layer inside a form.
A day in the life
Mix a batch of refractory mortar
You measure out dry ingredients and water, then blend them into mortar with a shovel or machine mixer.
Trowel new lining into a ladle
Rebuild the lining or spout of a ladle, the container that moves molten metal, using a trowel.
Spray fresh lining onto a furnace
Handle the hose and spraying gear to coat an industrial furnace surface in refractory mix.
Quick facts
High school diploma or equivalent
United States
$61,290/year
United States · May 2025
13.7% decline
United States · 2025–2035
Quick orientation
Preparation, pay & outlook
Preparation
High school diploma or equivalentTypical entry education; practical skills develop on the job.
Pay
$61,290/yearNational median, equivalent to $29.47 an hour, for refractory materials repairers, except brickmasons.
Outlook
13.7% declineEmployment is projected to shrink, with about 100 openings a year nationwide.
Fit, tradeoffs & changing tools
You might like this if…
- You like shaping and repairing things by hand.
- You are comfortable measuring ingredients carefully.
- You would rather care for tools and equipment than leave cleanup for someone else.
Things to weigh
- Heat, heavy lifting, and repeated bending can make the work tiring. Protective gear is part of the working day.
- Some mill jobs include rotating shifts, overtime, and emergency callouts, which can complicate plans outside work.
Where AI may help
Some electric-arc-furnace systems use lasers to measure lining wear, suggest repairs, and automatically spray material onto worn areas.
What people still lead
People still prepare materials, handle installation equipment, and maintain it. Automated repair systems also give an operator a maintenance plan to work with.
What we can’t predict yet
How much spraying becomes automated will depend on the furnace and repair system. Your future mix of handwork and machine operation may differ considerably between sites.
Pay in context
Earnings
The national median is $61,290 a year, or $29.47 an hour. That is a midpoint across workers, not a starting offer.
The national spread
The 10th–90th percentile range is $40,590–$86,510 annually, or $19.52–$41.59 hourly. These figures cover refractory materials repairers, except brickmasons; they do not mark beginner and expert pay levels.
Ask how raises work
Some contractors tie raises to demonstrated skills. Ask which installation skills affect your rate and how progress is assessed.
A shrinking occupation still has openings
Employment is projected to decline 13.7% from 2025 to 2035. About 100 openings a year are projected on average as workers leave or change occupations, even while total employment falls.
Getting started
Join a contractor that trains beginners
- What the route involves
- Apply to a refractory contractor offering hands-on training without prior refractory experience, such as Lehigh Valley Refractories.
- What it can lead to
- You can begin learning refractory work through employment instead of first completing a specialized college program.
- What to check
- This contractor requires applicants to be at least 18, willing to travel, able to lift 55 pounds, and willing to undergo drug screening, with a valid driver's license and reliable transportation.
Start on a steel-mill refractory crew
- What the route involves
- Seek entry-level refractory installation laborer jobs. At Minteq's Gary, Indiana, mill location, the work includes applying material and caring for equipment; steelmaking experience is preferred but not required.
- What it can lead to
- You gain experience with refractory application in a working steel mill.
- What to check
- That role requires a high school diploma or equivalent and a driver's license. Mechanical experience is strongly preferred, and rotating shifts may be required.
Look for employers that take beginners and teach the work on a crew. Contractor and steel-mill entry jobs can have different travel and scheduling demands.
After entry
Career paths
This starts where the entry routes leave off: early work, growing capability, and advancement or specialization.
Become dependable on the crew
Learn to stage materials, keep application equipment clean, and carry out the site's safety procedures consistently.
Learn another lining method
Build beyond your first tasks by learning methods such as spraying refractory or setting up forms and pouring a lining.
Coordinate installation work
An experienced service role can add planning job priorities, talking directly with plant customers, and supervising refractory installation.
Where you can work
A crew based at a steel mill
You apply refractory material and keep its equipment working at a customer's mill. The schedule may include rotating shifts and emergency callouts.
- Shift work
- On call
- Physical demands
- Safety-sensitive
A traveling installation contractor
You move between customer projects involving furnaces, kilns, or boilers. A crew may handle an urgent repair on one assignment and a longer rebuild on another.
- Field work
- Travel
- Physical demands
- Safety-sensitive
An off-site refractory shop
You rebuild and line components such as furnace doors before they go to the plant. Drawings, fit, and checks before shipping shape the work.
- Indoors
- Physical demands
Try it
See whether the job clicks before you commit to the path.
Use modeling clay to make an even lining inside a disposable cup. Remove a small patch, rebuild it, and compare its thickness with the surrounding clay. Notice whether you enjoy careful shaping and checking your work.
Stay safe: Use craft materials only, without heat. This explores the handwork, not industrial repair technique.
Sources
- O*NET OnLine. Refractory Materials Repairers, Except Brickmasons — 49-9045.00. Accessed 2026-10-09.
- U.S. Bureau of Labor Statistics. May 2025 Occupational Employment and Wage Statistics — pinned national estimates, SOC 49-9045. Accessed 2026-09-29.
- U.S. Bureau of Labor Statistics. 2025–2035 Employment Projections, Table 1.2 — pinned SOC 49-9045 values. Accessed 2026-09-29.
- Lehigh Valley Refractories. Employment. Accessed 2026-10-09.
- Minerals Technologies / Minteq. Refractory Installation Laborer — Entry Level, Gary, Indiana. Accessed 2026-10-09.
- Lehigh Valley Refractories. Refractory Install. Accessed 2026-10-09.
- Minerals Technologies. MINTEQ — Refractories. Accessed 2026-10-09.
- HarbisonWalker International. Manufacturing Service Technician (Refractory). Accessed 2026-10-09.
- Schad Refractory. Careers at Schad Refractory. Accessed 2026-10-09.
- Schad Refractory. Off-Site Services. Accessed 2026-10-09.