Certified prime
engineering resins.

A complete portfolio of certified prime engineering thermoplastics — sourced, stocked and documented for the quality requirements your application demands.

The Portfolio

Resin families we supply

From commodity workhorses to high-performance specialty grades, we carry a broad range of certified prime materials.

ABSABS + NylonAcetalAcrylicASA ElastomersNylon 6Nylon 6/6Polyester PolycarbonatePolycarbonate + ABSPolycarbonate + PBT PolysulfonePPE + PSPurging CompoundsPVC SANSBCTPC-ETTPU Pre-colored PlasticsColor Concentrates

This is a representative list — our full line card includes additional grades and specialty materials. Request a copy and we'll send the current version.

Request the line card

Get our full, current portfolio with grades and suppliers — sent the same day where possible.

Request Line Card
QualityCertified prime
DocumentationCOA on request
StandardsFDA · RoHS · REACH
Why Source Through SPI

More than a catalog

Certified prime, fully documented

Material with the traceability and certificates of analysis your quality system requires.

Help choosing the right grade

Not sure between two nylons? Our team helps you select based on real application requirements.

A real person on the line

Direct access to people who know the material — for quotes, lead times and technical questions.

Need a specific grade?

Tell us the resin, the properties or the part — we'll confirm availability and pricing.