How do I estimate the material cost of a composite laminate?

Start from Laminate Thickness and Fiber Volume Fraction to get the fiber and resin weight per part, then apply Carbon Fiber Material Cost or Fiberglass Resin Usage with your Resin Mix Ratio. Add Prepreg Scrap Cost, since typical prepreg layup wastes 20 to 40 percent of material to nesting and offcuts. A part with a high fiber volume fraction uses more of the expensive fiber and less resin, which raises material cost but improves stiffness per unit weight.

How much does an autoclave cycle really cost per part?

Autoclave Cycle Cost totals energy, gas, labor, and amortized equipment for one cure run, then Cure Cycle Capacity divides it by the parts that fit in the load. A cure that costs 800 dollars and holds 20 parts is 40 dollars per part; the same cure with 4 parts is 200 dollars. That is why Autoclave Utilization and load planning dominate composite economics, and why oven-cure or out-of-autoclave processes are attractive when the autoclave is the bottleneck.

What fiber volume fraction should I target?

Fiber Volume Fraction is the ratio of fiber to total laminate volume, and it sets both properties and cost. Prepreg autoclave parts typically run 55 to 60 percent, hand layup often 30 to 45 percent, and resin infusion in between. Higher fiber fraction gives more strength and stiffness per weight for lightweighting, but past process limits it starves the laminate of resin and raises Delamination Risk. Resin Mix Ratio and cure pressure control whether you actually hit the target.

How do I plan resin infusion time and quantity?

Resin Infusion Time depends on part size, flow distance, and resin viscosity, and Fiberglass Resin Usage sizes the resin volume from Laminate Thickness and Fiber Volume Fraction. Mix enough for the part plus lines and waste, but not so much that it exceeds pot life before the flow front finishes. Vacuum Bagging Cost and Mold Release Usage add the consumables per part. Underestimating infusion time risks the resin gelling mid-flow, which scraps the part and shows up in Composite Defect Rate.

How do scrap and defect rates affect composite part cost?

Composite Yield and Composite Defect Rate set how many parts you build to ship one good one, and each scrapped part carries full material, layup, and cure cost. Trim Scrap Cost adds edge waste, and Delamination Risk and Material Freezer Life Exposure flag the quality and shelf-life issues that create scrap. At 85 percent yield you build about 1.18 parts per good part, so a 5 point yield gain drops effective Composite Part Cost meaningfully. Composite Repair Cost decides when rework beats scrap.

How do I amortize composite tooling over a program?

Tooling Amortization spreads mold and fixture cost across committed program volume. Composite tooling is expensive because it must survive cure temperature and pressure, and low-volume aerospace programs carry heavy tooling cost per part. Divide the tool build cost by realistic program units, not optimistic ones, since a mold amortized over volume that never ships becomes a stranded cost. Fold the per-part figure into Composite Part Cost alongside Gelcoat Coverage and Mold Release Usage for a complete quote.

Manufacturing calculator category

Composites, Fiberglass & Advanced Materials calculators

This category covers the cost and process math of building parts from carbon fiber, fiberglass, and prepreg: layup labor, resin and material usage, cure cycles, and the autoclave time that gates throughput. It is for composites process engineers, cost estimators, and shop planners who need to quote a laminate, schedule cure capacity, and control the scrap and defect rates that make or break composite margins.

What this hub covers

Calculators for composite layup labor, carbon fiber and resin cost, resin infusion and cure cycles, autoclave utilization, fiber volume fraction, scrap, tooling amortization, and defect risk.
Browse composites, fiberglass & advanced materials calculators for manufacturing planning, quoting, quality, capacity, and operations decisions.

Best calculators in this category

Composite Layup Labor: Estimate layup labor hours for hand layup, prepreg layup, wet layup, or dry fabric ply placement.
Carbon Fiber Material Cost: Estimate carbon fiber material cost for prepreg, dry carbon fabric, tow, tape, or woven reinforcement.
Fiberglass Resin Usage: Estimate resin demand and cost for fiberglass wet layup, chop spray, RTM, or infusion work.
Resin Infusion Time: Estimate infusion fill time for vacuum infusion, VARTM, or resin transfer molding.
Vacuum Bagging Cost: Estimate vacuum bag consumable cost for composite layup, infusion, or cure operations.
Autoclave Cycle Cost: Estimate cost assigned to an autoclave cure cycle for advanced composite parts.
Prepreg Scrap Cost: Estimate the cost of prepreg scrap from cutting, nesting, trim, expired material, or layup damage.
Cure Cycle Capacity: Estimate total cure time required for oven, autoclave, or press cure cycles.
Composite Part Cost: Estimate total cost for a finished composite, fiberglass, or advanced material part.
Laminate Panel Throughput: Estimate the good panel output a laminating line delivers per shift from panels per cycle, available cycles, uptime, and first-pass yield.
Fiber Volume Fraction: Estimate fiber volume fraction from fiber volume and total composite volume.
Resin Mix Ratio: Calculate resin-to-hardener or resin-to-catalyst mix ratio for composite resin systems.

Common manufacturing problems solved

composites
fiberglass
carbon fiber
resin infusion
autoclave
lightweighting

Live market signals for this industry

The producer price index for plastic resins and materials stands at 310.753 (BLS, Jun 2026), up 17.2% from a year earlier. Quotes priced off last quarter's material cost miss this move.
Steel mill PPI stands at 361.439 (BLS, Jun 2026), up 16.9% from a year earlier. New factory orders are up 7.4% year over year (Census).

Category questions

How do I estimate the material cost of a composite laminate? Start from Laminate Thickness and Fiber Volume Fraction to get the fiber and resin weight per part, then apply Carbon Fiber Material Cost or Fiberglass Resin Usage with your Resin Mix Ratio. Add Prepreg Scrap Cost, since typical prepreg layup wastes 20 to 40 percent of material to nesting and offcuts. A part with a high fiber volume fraction uses more of the expensive fiber and less resin, which raises material cost but improves stiffness per unit weight.
How much does an autoclave cycle really cost per part? Autoclave Cycle Cost totals energy, gas, labor, and amortized equipment for one cure run, then Cure Cycle Capacity divides it by the parts that fit in the load. A cure that costs 800 dollars and holds 20 parts is 40 dollars per part; the same cure with 4 parts is 200 dollars. That is why Autoclave Utilization and load planning dominate composite economics, and why oven-cure or out-of-autoclave processes are attractive when the autoclave is the bottleneck.
What fiber volume fraction should I target? Fiber Volume Fraction is the ratio of fiber to total laminate volume, and it sets both properties and cost. Prepreg autoclave parts typically run 55 to 60 percent, hand layup often 30 to 45 percent, and resin infusion in between. Higher fiber fraction gives more strength and stiffness per weight for lightweighting, but past process limits it starves the laminate of resin and raises Delamination Risk. Resin Mix Ratio and cure pressure control whether you actually hit the target.
How do I plan resin infusion time and quantity? Resin Infusion Time depends on part size, flow distance, and resin viscosity, and Fiberglass Resin Usage sizes the resin volume from Laminate Thickness and Fiber Volume Fraction. Mix enough for the part plus lines and waste, but not so much that it exceeds pot life before the flow front finishes. Vacuum Bagging Cost and Mold Release Usage add the consumables per part. Underestimating infusion time risks the resin gelling mid-flow, which scraps the part and shows up in Composite Defect Rate.
How do scrap and defect rates affect composite part cost? Composite Yield and Composite Defect Rate set how many parts you build to ship one good one, and each scrapped part carries full material, layup, and cure cost. Trim Scrap Cost adds edge waste, and Delamination Risk and Material Freezer Life Exposure flag the quality and shelf-life issues that create scrap. At 85 percent yield you build about 1.18 parts per good part, so a 5 point yield gain drops effective Composite Part Cost meaningfully. Composite Repair Cost decides when rework beats scrap.

Last reviewed 2026-05-12.