Browse our products by application OR simply search for a product by name:

Concetnrol Logo

CONCENTROL STB PU®

By Concentrol arrow Visit Website

Silicone Surfactant Stabilisers for Polyurethane Foams

PU Foam layers

Product Overview

The CONCENTROL STB PU® range is made up of a wide variety of silicone surfactant stabilisers designed for diverse polyurethane (PU) foam applications. These surfactants help to improve emulsification of the PU foam raw materials, offering sufficient nucleation and structural stabilization during the expansion process. In turn, this helps to control the size and distribution of the foam’s cells.

Customised grades of surfactants are available for a wide variety of PU foam types: Flexible HR foam, Conventional flexible foam, Rigid foam, Integral foam, and One component foam (OCF), in order to achieve the tailored structural and performance requirements for each individual  application area, such as low thermal conductivity, low flammability, high flowability, high stabilising support etc.

Brochures & Technical Literature

Concentrol® Silicone Surfactants for PU Foams

A summary of the different grades in the CONCENTROL STB PU® range and their suitable applications

download Download PDF 1 MB

icon Request a Sample

At Lawrence Industries we hold a wide range of sample products in our office allowing us to dispatch them on the day you request them.

Request a Sample

icon We Can Assist You Today

Please fill out our short form and one of our technical sales team will be in touch within 24 hours. If it is urgent then please call us on 01827 314151.

Request a Callback
Product Features

  • Wide range of silicone surfactant stabilisers for diverse polyurethane foam systems.

  • Supports emulsification, nucleation and foam structure stabilisation during expansion.

  • Helps control cell size and cell distribution in PU foams.

  • Grades available for MDI, TDI/MDI and TDI formulations.

  • Flame-retardant options available for low flammability foam formulations.

Product Benefits

  • Improves foam quality and processing across a broad range of PU applications.

  • Enables tailored foam performance for thermal, mechanical and processing demands.

  • Supports low-emission foams with reduced VOC and fogging contribution.

  • Very low cyclic siloxane content for memory foam applications.

  • Delivers performance at low addition levels, typically 0.5-5%

Typical Applications

  • Flexible HR foam for automotive and furniture applications.

  • Conventional flexible foam for continuous and discontinuous production systems.

  • Rigid foam for appliances, panels, blocks and spray foam.

  • Integral skin foam for steering wheels, armrests, headrests and shoe soles.

  • One-component foam (OCF).

Featured grades with technical datasheets

A brief overview of the key grades with their Technical Datasheets (TDS) is given below.

If you are looking for a Safety Datasheet (SDS), Product Safety Information (PSI) or an alternate grade, then please get in touch or request a sample.

  • Low-medium stabilising efficiency
  • Standard silicone surfactant for High resilience (HR) moulded MDI foams
  • Very low VOC contribution
  • Wide processing latitude for open foams
download Datasheet for Concentrol STB PU-1234® 45 KB
  • High polarity for high densities (550-1200kg/m3).
  • Provides fine and uniform cell structure and good emulsification.
  • Improved tensile strength, Ross-flex properties and elongation.
  • Available for HFO systems.
download Datasheet for Concentrol STB PU-2248® 67 KB
  • MDI viscoelastic foam grades.
  • Pneumatic viscoelastic foams with very fine and tight cell structures.
  • Avoids foam shrinkage.
  • Ultra-low cyclic siloxane content.
  • Optimal choice for discontinuous applications utilizing formic acid and HFO.
  • Good compatibility between polyol and isocyanates, including recycled polyester polyol.
  • Minimises surface voids and promotes a fine cell structure.
  • Reduces foam anisotropy, thereby enhancing compressive strength and dimensional stability.
  • Suitable for continuous lamination processes or for block and discontinuous applications.
  • Suitable for pentane systems.
  • Suitable for PIR Foams
Also Used In
Applications View All Applications
Thermosets

Thermosets arrow