PU Foams

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We offer a range of Silicone Surfactants for polyurethane systems on behalf of Concentrol®.

HR Flexible Polyurethane Foam
Concentrol® Grade	HR MDI	HR TDI/MDI	HR TDI	Stabilising Efficiency	Additional Information
STB PU-1220	+++	++ (co-surf)	+ (co-surf)	Low	Cell regulating surfactant.	Low potency MDI surfactant, very wide processing latitude for open foams.
STB PU-1230	+++	++ (co-surf)	+ (co-surf)	Low	Cell regulating surfactant.	Cell regulation surfactant, open foams with very good crushability and wide processing latitude.
STB PU-1231	+++	++ (co-surf)	+ (co-surf)	Low	Cell regulating surfactant.	Standard silicone surfactant for MDI foam, low VOC and broad processing latitude for open foams.
STB PU-1234	+++	++ (co-surf)	+ (co-surf)	Low-medium	Cell regulating surfactant.	Standard silicone surfactant for MDI foam with very low VOC contribution, wide processing latitude for open foams.
STB PU-1235	+++	+++ (co-surf)	++ (co-surf)	Medium	Cell regulating surfactant.	Silicone surfactant for MDI foam with extra low VOC contribution. Cellular regulation with wide processing latitude for open foams.
STB PU-1270	+++	+++ (co-surf)	++ (co-surf)	Medium	Cell regulating surfactant.	Cell regulation with medium stabilizing effect, very wide processing latitude for less stable MDI systems and TDI/MDI foams.
STB PU-1239	+++	+++ (co-surf)	++ (co-surf)	Medium	Cell regulating surfactant.	Cell regulation surfactant with medium stabilizing effect, for seating as well as sound absorbing mats.
STB PU-1240	++ (co-surf)	+++	++ (co-surf)	Low-Medium	Cell regulating surfactant.	Low medium potency TDI, also used as co-surfactant regulation at lower usage levels.
STB PU-1251	++ (co-surf)	+++	+++	Medium	Stabilising Surfactant.	Medium potency TDI surfactant, also used as cosurfactant at low dosage for MDI/TDI systems.
STB PU-1250	++ (co-surf)	++	+++	Medium	Stabilising Surfactant.	Medium potency surfactant with wide processing latitude for TDI foams.
STB PU-1253	+	++	+++	Medium-High	Stabilising Surfactant.	Medium potency TDI surfactant, with good surface regulation.
STB PU-1254	+	++	+++	High	Stabilising Surfactant.	Low VOC TDI surfactant with broad processing latitude. Foam stabilizer with good surface regulation.
STB PU-1255	+	++	+++	High	Stabilising Surfactant.	Low VOC TDI surfactant, prevents foam defects such as coarse cell structure and voiding beneath the foam surface.
STB PU-1256	-	-	+++	High	Stabilising Surfactant.	Strong TDI stabilizer. Can be used as a sole surfactant (high polymer solids systems), or for more open foams, in combination with a cell regulator (STB PU-1257)
STB PU-1257	-	++	+++ (co-surf)	High	Stabilising Surfactant.	Strongest cell regulator (sub-surface void reduction), with only moderate stabilizing effect.
STB PU-1259	++	+	+++	High	Stabilising Surfactant.	Very broad processing latitude. Lowest VOC TDI silicone surfactant. High stabilizing effect with good cellular regulation.

+++ strongly recommended, ++ recommended with adjustment, + may be recommended

HR Slabstock Foam
Concentrol® Grade	HR MDI	HR TDI/MDI	HR TDI	Stabilising Efficiency	Additional Information
STB PU-1230			+	Low	TDI foal with slightly coarser cells. Special MDI formulations at low usage levels.
STB PU-1250			+++	Medium	For TDI 80 formulations, wide processing latitude.

Special Applications
Foam type	Surfactant	Additional Information
High density foams (>100kg/m³)	2239, 2218, 2244	Wood imitation systems and structural foams with complex moulds. Defect-free surfaces.
Higher density foams - open celled (>100kg/m³)	2223, 2257	Cell opening with stabilising properties. Low polarity surfactants.
Medium density, open celled foam (30 - 50kg/m³)	2223, 2257	Cell opening with stabilising properties. Low polarity surfactants.
Low density, water blown foam (<15kg/m³)	2290, 2237	Repackaging foams, open celled foam offering excellent dimensional stability.
OCF - straw foam	2208, 2209	Non reactive surfactants
	2210	Non reactive surfactant for winter formulations. Usable with high amount of blowing agent, polyester polyols and chlorinated paraffins.
OCF - gun foam	2226	Fine, regular open celled foam.
	2210	Non reactive surfactant for winter formulations. Usable with high amount of blowing agent, polyester polyols and chlorinated paraffins.

Rigid Polyurethane Foam
			Cont. flex-faced panel		Cont. metal-faced panel		Block		Spray
Blowing agent	Appliance	Disc. Panel	PUR	PIR	PUR	PIR	PUR	PIR	Conventional	Low Density
HC	2274, 2266, 2265, 2242/2241	2276³	2252	2213, 2239, 2271	2244	2244	2266, 2265	2276
Water	2254, 2255, 2264	2254, 2255, 2264			2264					2226, 2290
HFC-365mfc/ HFC-227ea		2266, 2265			2266, 2265				2206, 2264, 2267
HFC-245fa	2266¹, 2265¹						2266¹, 2265¹	2266¹, 2265¹	2256, 2251C²
HCFC-141b	2266, 2265, 2242/2241	2266, 2265	2266, 2265		2266, 2265, 2244		2266, 2265		2206, 2264
HFO			2214	2214		2214	2214	2214

1. Suitable for blowing agents with low-boiling point (e.g. HFC-134a)

2. For FR-rated systems

3. Pipe insulation systems

Silicone Surfactants for Standard Flexible Slabstock Foam
Concentrol® Grade	Application	Activity/foam properties
STB PU-3111	Polyester black foam	High efficiency. For formulations with medium and very low density (8-30 kg/m³) and with a polyol with OH =56 and high amount of blowing agent like methylene chloride.
STB PU-3160	Polyester black foam	Medium efficiency, low emanations.
STB PU-3220	Polyester black foam	Very high efficiency with wide processing latitude for conventional and FR. All water and methylene chloride formulations.
STB PU-3223 STB PU-3280	Polyester black foam	High potency surfactants, excellent cell stabilization with wide-processing latitude and high breathability for low and ultra low densities (5 up to 18 kg/m3). Specially indicated for CO2 or methylene chloride.
STB PU-3228	Polyester black foam	High efficiency, low emanations and useful for CO₂ blown foams. MDI/TDI viscoelastic applications.
STB PU-3230	Polyester black foam	Moderate efficiency with wide processing latitude for conventional and FR foam. High methylene chloride formulations.
STB PU-3233	Polyester black foam	High potency surfactant, excellent cell stabilization with wide-processing latitude and high breathability for low and ultra low densities (5 up to 18 kg/m³). Specially indicated for high amount of methylene chloride.
STB PU-3270	Polyester black foam	Medium to high efficiency, wide processing latitude for low to medium densities. For most standard formulations with water or methylene chloride.

Please get in touch with our Resins and Specialities team by filling out the enquiry form below.

The information shown on this page(s) is intended as a product guide only; specification and properties of products are subject to change by the manufacturer and no guarantees or warranties are implied or inferred by the information provided here. It is the responsibility of the user to request the most current information and determine the suitability of any product in the user’s application.

*in line with our commitment to Responsible Care^®, a pre-delivery safety inspection will generally be required prior to the first bulk delivery of a hazardous liquid.

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