Why can a cheaper ingredient increase cost?

A lower unit price can require a larger qualified dose. The calculation compares dose times price, then includes the one-time qualification cost.

Does a negative result mean savings?

Yes. A negative total means ingredient savings exceed future qualification and reformulation costs over your entered volume.

Should I include completed qualification work?

Exclude spending already incurred when deciding whether to switch now. Include only future qualification, testing and reformulation labor attributable to the change.

What if the replacement changes the whole recipe?

Cost the complete recipes separately. This calculation isolates one substituted ingredient and assumes other recurring costs remain unchanged.

Paint, Resin & Polymer Compounding calculator

Raw Material Substitution Impact Calculator

Compare ingredient spending before and after a qualified substitution. Enter each dose and purchase price, affected saleable gallons and future qualification costs.

What this calculator does

Compare the cost of two qualified ingredient doses over planned production, including one-time qualification and reformulation labor.

Formula used

Current ingredient cost = gallons × current dose × current price
Replacement ingredient cost = gallons × replacement dose × replacement price
Material change = replacement ingredient cost − current ingredient cost
Total change = material change + qualification and reformulation cost
Change per gallon = total change ÷ affected gallons

Inputs explained

Affected Saleable Volume: Planned saleable US gallons produced with the replacement ingredient.
Current Ingredient Dose: Current qualified recipe mass per saleable US gallon.
Replacement Ingredient Dose: Qualified replacement recipe mass per saleable US gallon.
Current Ingredient Price: Delivered invoice price on the current ingredient dose basis.
Replacement Ingredient Price: Delivered quote price on the replacement ingredient dose basis.
Qualification and Reformulation Cost: Future one-time testing, qualification and reformulation labor for this substitution.

How to use the result

Best suited to qualified resin replacement, alternate pigment purchase review.
Input ceilings are computational safeguards, not plant benchmarks. Excludes changes in other ingredients, recurring conversion costs, revenue and inventory disposal. Cost savings do not establish technical interchangeability.

Current U.S. benchmarks

The producer price index for plastic resins and materials stands at 280.569 (BLS, Aug 2026), up 6.6% from a year earlier. Quotes priced off last quarter's material cost miss this move.
Industrial electricity averages 9.77 cents per kWh across the U.S. (EIA, Jul 2026), up 4.7% from a year earlier. Energy-intensive steps carry this directly into unit cost.
The producer price index for industrial chemicals stands at 336.006 (BLS, Aug 2026), up 13.3% from a year earlier. Quotes priced off last quarter's material cost miss this move.
The U.S. has 14,543 chemical manufacturing establishments employing about 911,245 workers (Census County Business Patterns, 2023).

Common questions

Why can a cheaper ingredient increase cost? A lower unit price can require a larger qualified dose. The calculation compares dose times price, then includes the one-time qualification cost.
Does a negative result mean savings? Yes. A negative total means ingredient savings exceed future qualification and reformulation costs over your entered volume.
Should I include completed qualification work? Exclude spending already incurred when deciding whether to switch now. Include only future qualification, testing and reformulation labor attributable to the change.
What if the replacement changes the whole recipe? Cost the complete recipes separately. This calculation isolates one substituted ingredient and assumes other recurring costs remain unchanged.

Last reviewed 2026-10-01.