How do you calculate conformal coating cost?

Multiply assemblies coated by cost per assembly by the coverage fraction, then add the fixed masking and qualification cost. Here 100 × $45 × 80% = $3,600, plus $250 fixed = $3,850 total.

What drives conformal coating cost the most?

Masking labor and qualification inspection. Connectors, test points and keep-out areas all need masking before coat and de-masking after, which is why the fixed line ($250 here) and coverage percent matter as much as material cost.

Why apply a coverage percentage?

Selective coating leaves connectors and keep-outs uncoated, so you are not paying full per-board cost on 100% of the board. The 80% here reflects 20% of board area masked or excluded.

What is a good per-board conformal coating cost?

It depends on board size, material and inspection class, but the metric to watch is the effective per-board figure. In the example that works out to $38.50 per assembly on a per-piece basis, which you benchmark against future lots.

How does lot size affect coating cost?

The fixed masking and qualification cost spreads across the batch. At 100 boards the $250 fixed adds $2.50/board; at 10 boards it adds $25/board, so small lots carry disproportionate coating overhead.

Conformal coating vs. potting — which costs more?

Potting uses far more material and adds weight and rework difficulty, but conformal coating carries more masking and inspection labor per board. For most CCAs, coating is cheaper unless full encapsulation is required for the environment.

Defense Electronics & Ruggedized Systems calculator

Conformal Coating Cost Calculator

Conformal coating cost captures the total spend to protect ruggedized circuit card assemblies with an acrylic, urethane or parylene barrier against moisture, salt fog and vibration in milspec environments. Process and quality engineers in defense electronics use it to cost the coating step, which carries heavy masking labor and IPC-A-610 inspection that commercial work rarely sees. It matters because masking and qualification are largely fixed per batch, so the true per-board cost swings with coverage and lot size. Getting it right keeps coating from quietly eroding margin on conformally coated assemblies.

What this calculator does

Estimate coating cost for defense circuit card assemblies, embedded boards, rugged displays, radios, sensors, and sealed electronic modules.
Use it when conformal coating cost in defense electronics and ruggedized systems is being put through a defense electronics and ruggedized systems weighted-cost review.
It multiplies the number of coated assemblies by the per-assembly coating cost and the coverage fraction, then adds the fixed masking and qualification cost.

Formula used

Covered coating process cost = coated assemblies × coating cost per assembly × coating coverage included
Total conformal coating cost = covered coating process cost + fixed masking and qualification cost

Inputs explained

Circuit card assemblies coated:
Coating cost per assembly:
Board area actually coated:
Fixed masking and qualification cost:

How to use the result

Use it when quoting a coated CCA, sizing a coating line, or deciding whether a batch's coverage and lot size carry the fixed overhead.
It models coverage as a simple multiplier on per-board cost; selective-coat versus full-dip processes with very different masking burdens may need separate estimates.

Current U.S. benchmarks

The producer price index for copper and brass mill shapes stands at 559.593 (BLS, May 2026), up 76.8% from a year earlier. Quotes priced off last quarter's material cost miss this move. Global copper trades at $13,484 per tonne (IMF via FRED, May 2026).
The U.S. has 11,261 computer and electronic products establishments employing about 815,443 workers (Census County Business Patterns, 2023).

Common questions

How do you calculate conformal coating cost? Multiply assemblies coated by cost per assembly by the coverage fraction, then add the fixed masking and qualification cost. Here 100 × $45 × 80% = $3,600, plus $250 fixed = $3,850 total.
What drives conformal coating cost the most? Masking labor and qualification inspection. Connectors, test points and keep-out areas all need masking before coat and de-masking after, which is why the fixed line ($250 here) and coverage percent matter as much as material cost.
Why apply a coverage percentage? Selective coating leaves connectors and keep-outs uncoated, so you are not paying full per-board cost on 100% of the board. The 80% here reflects 20% of board area masked or excluded.
What is a good per-board conformal coating cost? It depends on board size, material and inspection class, but the metric to watch is the effective per-board figure. In the example that works out to $38.50 per assembly on a per-piece basis, which you benchmark against future lots.
How does lot size affect coating cost? The fixed masking and qualification cost spreads across the batch. At 100 boards the $250 fixed adds $2.50/board; at 10 boards it adds $25/board, so small lots carry disproportionate coating overhead.

Last reviewed 2026-05-12.