Polypropylene Glycol 400 (PPG-400)
Polyether diol, approximate molecular weight 400, clear viscous liquid. Used as raw material for flexible PU foam and elastomers.
polypropylene glycol 400
Plastics & Rubber
Plasticizers, stabilizers and processing aids for plastics and rubber compounds.
Why plastics and rubber need polyether polyols
Flexible polyurethane foam, elastomers and cast systems start from polyether polyols — the building blocks that control hardness, resilience and processing behaviour. Choosing the right molecular weight and functionality determines whether a foam is soft or firm, and whether an elastomer cures cleanly.
We supply polyether polyols for polyurethane applications alongside process aids used in polymer compounding. PPG diols are the classic raw material for flexible foam; PEG grades serve as lubricants and process aids in industrial polymer work.
- Polypropylene glycol diols for flexible foam and elastomers
- Polyethylene glycol grades as process aids and lubricants
- Polyether components with defined molecular weight for consistent batch behaviour
Foam and elastomer producers run continuous or high-volume batch lines where a change in polyol reactivity or viscosity alters processing and part properties. Consistent molecular weight across shipments keeps the process stable, which is why we confirm grade specifications and support qualification trials before volume supply.
Plastics & Rubber
Representative imagery
What we supply
Products from our catalogue used in plastics and rubber processing:
Polyethylene Glycol 4000 (PEG-4000)
High-molecular-weight polymer, white solid. Used in pharmaceutical, cosmetic, food and industrial applications.
polyethylene glycol 4000
Application examples
- Flexible PU foam — PPG-400, a polyether diol with approximate molecular weight 400, is used as a raw material for flexible polyurethane foam.
- Elastomers — PPG diols contribute to soft segments in cast and thermoplastic elastomer systems.
- Polyether synthesis — PPG-400 and PEG-4000 serve as intermediates for further polymer and surfactant synthesis.
- Mould release and process aids — PEG grades lubricate and ease demoulding in polymer processing.
How to engage our team
Getting from inquiry to production batch is a four-step process:
- Send your application, target market and required volume through the inquiry form.
- Our technical team shortlists the relevant grades and confirms regional suitability.
- Free 500 g to 1000 g samples are shipped for evaluation; the buyer covers freight, deductible from a future bulk order.
- Once validated, we confirm pricing, lead time and shipping for volume supply.
Frequently asked questions
What is the difference between PPG and PEG for polyurethane?
PPG (polypropylene glycol) is hydrophobic and used as the polyol backbone in flexible foam and elastomers; PEG (polyethylene glycol) is water-soluble and used more as a process aid, humectant or synthesis intermediate. The right choice depends on the foam or elastomer properties you target.
Can I request a polyether polyol sample?
Yes — free 500 g to 1000 g samples are available for evaluation. The buyer covers freight, and the sample value is deducted from a future bulk order.
Do you supply polyether polyol for rigid foam?
Our current polyether range is built around PPG-400 for flexible foam and elastomers and PEG-4000 for pharmaceutical, cosmetic and industrial roles. If rigid-foam grades are required, share the target density and blowing system and our team will advise on availability.
Request a quote or technical sample
Share your application, target market and required volume — our team responds with selection and lead time.
Contact us