INDUSTRYCoatings

Other industries

Industrial Chemicals

FUNCTIONThickener / rheology modifier — Rheology

SYSTEMWater-based

APPLICATIONGeneral Coating Ingredients

Hydrophobically ethoxylated polyurethane thickener in water

CAS See supplier composition · Product family

Supplier-reported greener choice

Compare materials Supplier grades

Thickener / rheology modifier

Use as original material in a formula →

Function tag evidence & scope

Function tags help find candidates. They do not establish suitability for water-based paint or an EcoSafe rating.

Thickener / rheology modifier · Rheology

Supplier-grade/general function only; this does not establish compatibility with a starter formula, lower hazard, an EcoSafe rating or a verified environmental improvement. Function reference ↗

Formulation developmentConfirm compatibility and loading for the selected supplier grade.

At a glance for your formula

Arkema COAPUR 817 BB is a bio-based polyurethane associative thickener for waterborne formulations. It increases medium- and high-shear viscosity to support tool loading, film build, leveling and brush drag. The supplier allows combination with other rheology modifiers, including a low-shear partner in high-PVC matt paints. The related COAPUR 3020 BB is a separate grade, and its performance must not be transferred to this record.

Grade-specific screening values have not been recorded. Consult the selected supplier’s technical reference.

Supplier-grade handling

Review the current supplier SDS for the selected grade and region.

Not assessed

Awaiting human verification

Greener-choice supplier information

These claims describe named supplier grades. Application testing and an EcoSafe assessment remain separate.

Arkema / Coatex: COAPUR 817 BB (COAPUR 3020 BB is a related high-shear option, grouped here)

Arkema / Coatex · Supplier-reported · Awaiting human review

Listed claims

Supplier-stated renewable HEUR alternative
confirm the declared 93% metric basis.

Suggested applications

Waterborne paints
High-PVC matt paints with a low-shear thickener partner

Sustainability highlights

93% biobased product claim linked by supplier to USDA certification. Organic-carbon basis, not product mass.
Lower carbon footprint
solvent/APEO not intentionally added.

Performance highlights

Medium- and high-shear viscosity development.
Tool load, film build and leveling.

Grade scope & review questions

Supplier-reported information; awaiting human review. 29% solids and 17.5% active are separate metrics; free-of claims are not measured-zero specifications. ASTM D6866 / USDA biobased content measures renewable organic carbon as a share of total organic carbon; it is not the renewable percentage of delivered product mass.
Gap: Current SDS and certificate/method require confirmation.
Gap: Starter dose and performance equivalence: not established.
No exact chemical identity/CAS supplied for this commercial grade or family; do not infer one from chemistry words or trade name.
Workbook deliberately groups related grades; preserve one candidate/family card and separate grade-specific claims.
Related supplier grades are grouped for navigation. Claims and application evidence retain the selected-grade scope stated in the summary; do not transfer them to every related grade.

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Supplier references

coatingmaterials.arkema.com reference 1 ↗coatingmaterials.arkema.com reference 2 ↗coatingmaterials.arkema.com reference 3 ↗biopreferred.gov reference 4 ↗

Source check: 2026-11-03. Current supplier documents, certification scope and exact grade still require review.

Applications, sustainability & review questions

Original material reference ↗

Full technical properties & recorded evidence

Core data coverage: 18.75%

3 of 16 defined fields are recorded with a source. This measures structured information currently on this site, not the completeness of every linked PDF. Missing fields remain in the denominator.

Coverage is separate from scientific accuracy, human verification and EcoSafe assessment. Molecular fields may not apply to a grade or family; they are not filled from another material to increase its score.

See the 16 fields and remaining gaps

Core field	Recorded information
Chemical name	Hydrophobically ethoxylated polyurethane thickener in water Source ↗
CAS number	Not yet recorded / may not apply
Synonyms	Not yet recorded / may not apply
Molecular formula	Not yet recorded / may not apply
Molecular weight	Not yet recorded / may not apply
IUPAC name	Not yet recorded / may not apply
PubChem CID	Not yet recorded / may not apply
Identity sources	https://coatingmaterials.arkema.com/en/product-finders/product/f/coatex_Thickeners/p/coapur-817-bb/ Source ↗ Source reference recorded for this record's scope; source freshness is a separate review.
Uses	Not yet recorded / may not apply
Hazards	Not yet recorded / may not apply
Appearance	Not yet recorded / may not apply
Density	Not yet recorded / may not apply
Melting point	Not yet recorded / may not apply
Boiling point	Not yet recorded / may not apply
Solubility	Not yet recorded / may not apply
SDS/TDS	Hydrophobically ethoxylated polyurethane thickener in water — Arkema / Coatex: COAPUR 817 BB (COAPUR 3020 BB is a related high-shear option, grouped here) TDS Source ↗ Open primary PDF reviewed Supplier reference/access link; no public PDF copy was archived by this import.

How the 16-field coverage score works →

Chemical identity & commercial names

Exact identity and mixture scope require the supplier record.

Trade names & supplier grades

Trade names identify supplier offerings. A shared chemical name does not establish interchangeable grades or specifications.

COAPUR 817 BB ↗ · Arkema / Coatex
Primary selected grade; retain its renewable-carbon claim basis.
COAPUR 3020 BB ↗ · Arkema / Coatex
Related high-shear option; do not transfer 817-specific rheology/dosage.

SUPPLIER REFERENCES

Supplier grade comparison

0 scoped references

Compare the named supplier references. A shared CAS does not establish grade equivalence; mixture and test conditions stay separate.

No supplier-grade technical record is available yet. Use the linked supplier documents to establish specifications.

Documents & supplier information

Archived copies are dated references. Confirm the latest document for your supplier, grade and region.

Hydrophobically ethoxylated polyurethane thickener in water — Arkema / Coatex: COAPUR 817 BB (COAPUR 3020 BB is a related high-shear option, grouped here) TDS

TDS · Arkema / Coatex
Supplier reference; confirm current revision · Confirm supply region and exact grade

Open primary PDF reviewed Supplier reference/access link; no public PDF copy was archived by this import.

Supplier access / request ↗

An exact-grade regional SDS has not yet been archived for public access on this site.

Supplier and range references

Original supplier / material reference ↗

Find this material in the Document Library →

Suppliers & makers

Confirm grade, composition, current availability and production location directly with the supplier.

Arkema / Coatex

Listed supplier for Hydrophobically ethoxylated polyurethane thickener in water.

Supplier product / family reference ↗

Origin, EcoSafe assessment & review history

Awaiting human verification

This material’s published information has not yet been verified by a human reviewer.

Human verification concerns the stated information and scope. It is separate from an EcoSafe score, certification or safety approval.

EcoSafe assessment: Not assessed · no numerical points or certification.

Manufacturing origin remains source-specific; a supplier address does not establish production origin.

Library source check: November 2, 2026. Sources may require supplier access.