Seven quality categories.
One transparent process.
We don't just trade Prime. Across the full polymer lifecycle, NSB matches supply and demand at the right quality level and the right price — for buyers and sellers alike.
Prime
Prime raw materials are plastics of the highest quality, meeting the most stringent industrial standards. These materials originate directly from regular production and fulfil all specified properties without deviation. They are ideal for applications requiring maximum precision, consistency and reliability.
Demanding engineering applications, safety-critical components, full specification required.
Enquire for this gradeStocklot / Slow Mover
Stocklot or Slow Mover raw materials refer to inventory that sells more slowly than expected, or surplus stock from previous production runs. These materials are often available in larger quantities and offered at reduced prices due to longer warehouse storage. They are particularly attractive for cost-conscious projects where minor deviations from the original specification are acceptable.
Cost-sensitive projects, large-volume sourcing, non-critical applications.
Enquire for this gradeNear to Prime
Near to Prime raw materials are plastics exhibiting only minimal deviations from prime quality. These differences may occur in colour, flow properties or minor mechanical characteristics. Despite this, they offer high performance and are suitable for numerous industrial applications that do not demand the highest material quality standards.
Broad industrial applications, compounding, injection moulding where slight tolerances are acceptable.
Enquire for this gradeWide Spec
Wide Spec raw materials exhibit broader tolerances in their specifications. These plastics may vary in properties such as density, melt index or colour, but remain functional and are often usable in applications where specific properties are less critical. They provide a cost-effective alternative to prime raw materials.
Compounding, blending, applications with relaxed tolerance requirements.
Enquire for this gradeOff-Grade
Off-Grade raw materials are plastics that did not meet the required quality standards during production — for example due to production deviations or contamination. These materials can be used in less demanding applications where the specific properties of the plastic are less critical. They represent an economical solution for projects with lower quality requirements.
Start-up / Transition
Start-up or Transition raw materials arise during the ramp-up phase of a production run, when machinery is being optimised. These plastics may show quality variations as they are produced during the transition to stable production conditions. They are generally available at lower prices and suitable for applications where certain tolerances can be accepted.
Applications accepting processing tolerances, compounding, cost-optimised sourcing.
Enquire for this gradeSpecial Customized Compounds
Special Customized Compounds are plastic mixtures specifically tailored to customer requirements. These materials are developed and manufactured to meet specific requirements, delivering unique properties such as enhanced strength, heat resistance or other specialised functions. They are ideal for applications where standard materials do not deliver the desired results.
High-specification applications, bespoke formulations, unique property requirements.
Enquire for this gradeYour need doesn't fit?
We trade beyond categories. If your requirement doesn't fit neatly into one of the seven grades above, tell us what you need — we source globally and can often find what others cannot.
Describe your material, quantity and application. NSB will evaluate global sourcing options and respond promptly.
Contact Sales TeamThe NSB 5R Principle
Five principles that guide every transaction — from sourcing to delivery.
Selection of the optimal raw material for each application.
Timely and efficient procurement to match your production schedule.
Optimised logistics processes for reliable, cost-efficient transport.
Precise material matching for your specific product requirements.
A sustainable contribution to resource-efficient value creation globally.
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