- ▸ Epoxy curing agent: Hindered secondary-amine hardener with extended pot life.
- ▸ Polyurea: Slower-reacting chain extender for longer working time.
- ▸ Coatings & adhesives: Controlled-cure reactive amine.
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
Polyetheramine SD-401 is an amine-terminated polyether diamine with sterically hindered secondary amine end groups on a propylene-oxide backbone, giving slower, more controlled reactivity than the primary-amine grades. As a mid-molecular-weight secondary diamine it functions as an epoxy curing agent and chain extender where extended pot life or gel time is needed. Established applications are in polyurea systems, coatings and adhesives.
Frequently Asked Questions
What is Polyetheramine SD-401 used for?
SD-401 is a mid-molecular-weight amine-terminated polyether diamine with sterically hindered secondary amine end groups, used as an epoxy curing agent and chain extender where extended pot life or gel time is needed. It is applied in polyurea systems, coatings and adhesives requiring controlled cure.
Why does SD-401 cure more slowly than primary-amine diamines?
Its end groups are sterically hindered secondary amines on a propylene-oxide backbone, which are inherently less reactive than primary amines. This produces slower, more controlled cure and a longer working window before gel.
How does SD-401 compare to SD-231 and SD-2001?
The SD grades all use hindered secondary amine ends for slow cure; the number tracks approximate molecular weight. SD-231 is lower-MW, SD-2001 is higher-MW, and SD-401 sits in the mid range, balancing crosslink density against chain flexibility.
What is the identity of Polyetheramine SD-401?
SD-401 is a polymeric, hindered secondary amine-terminated polyether diamine, defined by grade and average molecular weight rather than a single discrete CAS number. Lot-specific identity is on the CoA and SDS supplied with the order.
What packaging and quantities are available for bulk SD-401?
RawSource supplies SD-401 to manufacturers in drums, IBC totes and bulk volumes. Request a quote with your target volume, packaging and destination for current MOQ and pricing.