Polymer and plastic additive deformulation laboratories: how should you compare their scopes?
Short answer
Compare polymer and plastic additive deformulation scopes by the questions they investigate, the specimen each laboratory agrees to receive, and the identity levels and proportion estimates their reports explain. Describe the actual unused pellet, solid additive blend, molded part or multilayer article before sending material, because a product-family name does not define the analytical target or receiving decision. Ask for supported ingredient findings, a stated sample basis and explicit unresolved portions, so the resulting report addresses your decision without being read as an exact original compounding recipe.
What should you ask every lab before sending a plastic or polymer sample?
Start with one material decision, such as investigating a changed stabilizer package in new pellets or checking whether a candidate part retains the reference additive pattern. Give every laboratory the same brief and distinguish your requested decision from a list of detected signals, because separate scopes can otherwise answer different questions about the same object.
Do you need the base-polymer name before planning additive analysis?
Ask whether a declared polymer name is enough context or whether the scope also needs a supported base-family investigation, because a supplier label may describe only the principal resin. State whether the sample could be a blend, filled compound or concentrate, since those contexts change the meaning of an additive finding and its concentration basis.
Which physical form and region will the scope actually cover?
Ask separately about pellets, solid blends, molded parts and layered articles, and identify any coating, reinforcement or adhesive that is outside the target polymer. A whole-article result can combine several materials, so the agreed target must remain explicit before preparing or submitting a separated region.
Can you distinguish an additive from its degradation products?
Ask how the report separates surviving additives, transformation products and uncertain precursor inferences, because processing and storage can change the pattern left in a polymer. A degradation-product finding does not automatically establish the original ingredient identity or dosage, and a missing intact additive does not prove it was never used.
How will you handle a multilayer article or polymer blend?
Ask whether the scope concerns the combined material or identified layers and how the report will describe material carried over during separation. For a blend, distinguish a supported family finding from a claim about each phase’s exact structure or proportion, since an extract may represent the phases unevenly.
Will component amounts refer to the whole sample or an extracted fraction?
Ask that the concentration basis and the status of each amount be explicit, including whether a result is an elemental measurement, an ingredient estimate or an unresolved fraction. An additive enriched by extraction is not automatically concentrated in the original article, and measurement response alone is not an ingredient mass ratio.
Do you need a reference or candidate sample for the comparison?
Ask whether corresponding reference and candidate materials would answer your decision more directly than one unknown sample, and name their roles clearly in the brief. Match the intended regions and material states where possible, because a pellet and a molded part can differ through processing before any supplier-package difference is considered.
What will the report identify and explicitly leave unresolved?
Ask for the distinction between a specific compound, an additive family, an inferred source and an unresolved contribution, together with the evidence supporting each level. The same brief should explain which application-performance claims remain outside the composition study, because identifying ingredients does not establish equal behavior in manufacture or use.
Which declaration and confidentiality arrangements apply to the actual specimen?
Ask what documents and acceptance decision are needed for the exact material proposed, and clarify confidentiality coverage for sample information and analytical results before sharing sensitive details. A public polymer-service description does not itself authorize a shipment or define the handling arrangements of a particular project.
What do several labs publicly say they offer for polymer additive deformulation?
What does Smithers publicly list?
Smithers lists polymer additives and compounding ingredients within the material scope on its deformulation and reverse-engineering page. Smithers also lists cured or uncured elastomers and thermoplastic composites among the materials it can analyze.
What does Intertek publicly list?
Intertek describes additive identification and measurement for raw materials, solid polymer or plastic materials, and composites on its additive analysis page. Intertek also describes identifying stabilizer degradation products.
What does Jordi Labs publicly list?
Jordi Labs includes additive quantitation, antioxidant analysis and copolymer analysis in the polymer section of its polymer services overview. Jordi Labs also lists residual monomer concentration among the polymer questions it can analyze.
What does EAG Laboratories publicly list?
EAG Laboratories describes deformulation studies for plastics, polymers, rubber products and composites on its plastic deformulation page. EAG Laboratories lists plasticizers, process aids and stabilizers among the components investigated in plastic reverse-engineering projects.
What would our polymer-additive report provide?
We investigate supported component identities and semi-quantitative proportions and deliver an English PDF with a conclusion card, component table, data appendix and explanation of unresolved portions. Our scope follows the submitted specimen; we do not infer an original compounding dosage merely from a surviving additive or transformation product.
Our reports are research-grade analytical reports from a laboratory that is not accredited. They cannot be used for product registration or legal proceedings.
Which questions only a test sample can answer?
A public scope cannot establish whether the particular polymer releases its minor additives into a suitable extract, whether related ingredients overlap, or whether layers can be separated without carrying over other material. Those sample-dependent limits determine whether a finding can reach one compound, a broader family or only an unresolved contribution, so an agreed question should remain connected to the actual specimen. For example, a manufacturer who wants to replace a compound can use supported chemical differences to define a trial, then evaluate the candidate under its own processing and application conditions.
Which polymer sample can you declare to us before shipping?
We review new solid plastic or rubber products, pellets, masterbatch and eligible solid additives after declaration and SDS review; unlisted blends are reviewed case by case after declaration. Used goods and waste are not received, and non-water-based liquids are not received as supplied. Use our industrial inquiry page and shipping guide; ship after agreement, payment and an acceptance number.
FAQ
Does a longer ingredient list establish a more complete recipe?
No; compare identity levels, sample basis and unresolved material, because a detected signal, a supported ingredient and an inferred precursor are different statements about evidence.
Should each laboratory receive the same analytical question?
Yes; give each laboratory the same target material, reference role and decision question, so the proposed scopes can be read against the same purpose.
Does an additive-analysis page authorize my shipment?
No; ask the laboratory to review the actual specimen and documents, because a service description does not establish acceptance of every liquid, mixture or layered article.
Does a matching additive package prove equivalent processing behavior?
No; polymer structure, filler distribution and processing history also affect behavior, so supported composition findings provide a development lead rather than a performance guarantee.
Send a sample declaration and tell us what you want to learn from this sample.