Material deformulation: what a deformulation study can and cannot tell you
Begin with an answerable decision
Deformulation asks what chemical components are supported by evidence in the sample and, where possible, how much of each is present. It is most useful when tied to a decision: whether two supplied materials look chemically consistent, what families may explain a performance difference, or where to start a substitution trial. "Tell me the formula" is broader than a sample can answer, because the word formula can mean a chemical inventory, a purchasing bill of materials, a mixing schedule or an exact production instruction.
A practical brief names the product state, the reference, and the difference you care about. A cured coating can be compared with another cured coating, while a wet coating and a cured film represent different stages. A masterbatch should be compared with another concentrate before its composition is interpreted against a diluted finished part. The sample is evidence of itself; the question determines which comparison is meaningful.
Three levels of a component claim
An identified specific compound is a narrower claim than an assignment to a chemical family; an unresolved fraction is an honest statement that the available data do not support a finer name. These categories should remain separate in a decision memo. If a report says "resin family" rather than a precise polymer grade, it has not silently identified the grade. We combine techniques on a sample, including LC-MS/MS, GC-MS and ICP-MS when appropriate, and our analysts interpret the combined evidence.
Our proportions are semi-quantitative estimates, not assay values. This distinction matters when a buyer plans a substitution: an estimated range can guide a development experiment, but it should not be copied as a quality specification. A component with a weak or overlapping signal may be left at family level or unresolved rather than assigned a false exact percentage. If the decision depends on a particular low-level ingredient, say so at the start so it can be considered within the deformulation project; a broad deformulation cannot promise every trace additive, and we do not take single-analyte tests from overseas.
What a sample cannot remember
Chemical analysis cannot reveal a raw material trade name or supplier simply from a molecular signature. Competing commercial products can share chemistry, and a supplier may offer several grades in the same family. Nor does a finished sample keep a complete record of mixing order, shear, temperature and dwell time. Such process details can affect performance while leaving no unique chemical marker in the final article. Treat a proposed process explanation as a hypothesis requiring manufacturing records or a controlled trial.
Curing and crosslinking create a second boundary: the original mixing ratios generally cannot be recovered from the reacted material. A dried film lacks volatile ingredients that left during drying. A used part can also acquire contamination or lose additives through service. A useful report describes the received sample, including its condition, rather than pretending to reconstruct every earlier state.
Turn a result into a next experiment
We give an English PDF with a conclusion card, data appendix and a plain-language account of what could and could not be determined. The strongest next step is often a controlled comparison: change one candidate ingredient or source, hold processing constant, and test the property that matters. Analytical similarity is evidence for prioritizing trials, not proof of interchangeable performance. If the report leaves a fraction unresolved, carry that uncertainty into the experiment instead of hiding it behind an exact-looking recipe.
How to start
We accept overseas industrial samples after declaration review. Use the sample declaration form and read the related guide. Our reports are research-grade analytical reports from a laboratory that is not accredited. They cannot be used for product registration or legal proceedings.
FAQ
Will the proportions be exact assay values?
No. We report semi-quantitative estimates for identified components; they are not assay values.
Can a report identify the supplier of an additive?
No. Chemistry may support a compound or family, but it does not reveal the raw material trade name or supplier.
Why does a cured sample have a narrower answer?
Cure changes chemical structure and can remove volatile material, so original liquid proportions generally cannot be inferred from the finished sample.
How should I use an unresolved result?
Treat an unresolved analytical fraction as an explicit limit and design a follow-up comparison around the purchasing or development decision, rather than inventing a missing percentage.
Send a sample declaration for this product and state the question you want answered.