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Borchi® Gel PW 25

1 of 99 products in this brand
Borchi® Gel PW 25 is a HEUR rheology modifier ( Hydrophobically modified Ethoxylated Ur ethane copolymer rheology modifier). This solution works well as a low shear range thickener for improved rheological profiles in coatings. Borchi® Gel PW 25 is an emulsifier-, APEO-, and organo tin-free non-ionic polyurethane-based thickener for water-based coatings.

Functions: Rheology Modifier, Thickener

Chemical Family: HEUR Thickener, Polyurethanes (PU)

End Uses: Waterborne Coating

Labeling Claims: APEO-Free, Emulsifier-free, Tin-free

Physical Form: Liquid

Technical Data Sheet
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Identification & Functionality

Carrier
CASE Ingredients Functions
Technologies

Features & Benefits

Product Features
  • Exceptionally good thickening properties in most fine particle dispersion binders with low emulsifier content
  • Very high water-retention capacity which promotes longer wet edge times than normal
  • Added at low levels so water and scrub resistance of the cured surface will not be adversely affected
  • Will not cause yellowing or chalking in cured film

Applications & Uses

Coating Type
Use Level
0.1 - 2%
Dosage Information
  • The exact dosage must be experimentally determined.
  • In most applications, Borchi® Gel PW 25 must be pre-diluted with water first at a ratio of 1:4.
  • This solution can then be added at any stage of the production including as a viscosity adjustment.
  • Borchi® Gel PW 25 can only be used in its supplied form if there is sufficient water at a temperature of 50 - 60°C available for the dispersion; however, the binder must be added last.

Properties

Physical Form
Appearance
Yellow liquid
Soluble in
Water, 1-2 Propanediol
Physical Properties
ValueUnitsTest Method / Conditions
Density (at 20°C)1.07g/cm³DIN 51757
Non-volatile Content (1g, 1h, 105°C)24 - 26%ISO 3251
pH7
Viscosity (at 20°C)8000 - 15000mPa.s

Regulatory & Compliance

Certifications & Compliance

Packaging & Availability

Regional Availability
  • Global

Storage & Handling

Storage Conditions

Protect from the effects of weathering and store at temperatures between 5 and 30°C. Once opened, containers should be resealed immediately after each removal of the product.