Molekula
HTPB (POLY BDR45 HT LO) SPEC WS23148C (TYPE II)
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
HTPB (hydroxyl-terminated polybutadiene) is a synthetic rubber polymer widely used in aerospace, adhesives, and composite applications for its high energy density and durability. This specific grade, **POLY BDR45 HT LO (WS23148C, Type II)**, is a low-molecular-weight, hydroxyl-terminated polybutadiene designed for propellant and casting resin formulations. It features a hydroxyl value of 0.45–0.55 meq/g, cis-1,4 content of ≥40%, and a viscosity of 4,000–8,000 cP at 25°C. Non-hazardous under standard conditions, it requires ambient storage. Molekula supplies POLY BDR45 HT LO from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Clear colourless viscous liquid |
| Water | 0.00 - 0.06% |
| Specification | WS 23148C |
| Nonvolatile Material PB | 99.5 - 100% |
| Hydroxyl Value Acetyl | 0.78 - 0.88 meg/g |
| Viscosity Poise 30C | 45 - 55 |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90023131 |
| CAS Number | 69102-90-5 |
| Molecular Formula | N/A |
| Molecular Weight | N/A |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | N/A |
| Tariff Code | 3902909099 |
Safety & GHS
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
Documents
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is HTPB (POLY BDR45 HT LO) used for?
This HTPB (hydroxyl-terminated polybutadiene) is primarily used in composite applications, including rocket propellants, adhesives, and elastomers, where high thermal stability and mechanical properties are required.
What is the molecular formula and molecular weight of this HTPB?
The exact molecular formula and molecular weight are proprietary, but the CAS number for this HTPB is **69102-90-5**. Contact us for detailed technical specifications.
How should HTPB (POLY BDR45 HT LO) be stored?
Store at ambient temperature in a clean, dry environment, away from direct sunlight and ignition sources, in tightly sealed original containers.
What grade or purity level is available for this HTPB?
This product meets **Type II** specifications per **WS23148C**, suitable for high-performance composite applications. No hazardous signal word applies.
Can Molekula supply this HTPB in bulk quantities?
Yes, we offer bulk packaging options for HTPB (POLY BDR45 HT LO) to meet industrial and large-scale production needs. Contact our sales team for pricing and logistics details.
What documentation comes with an order of this HTPB?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and a technical datasheet outlining specifications and handling instructions.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.