PennWhite FoamDoctor Antifoams, Silicone Emulsions and Lubricants

Selection and quotation of PennWhite additives: food-grade and industrial FoamDoctor foam control agents, silicone emulsions, release coatings, lubricants and Silstrip silicone removers.

FoamDoctor Antifoams for Potato and Vegetable Processing

Food-grade FoamDoctor F-series agents control foam during washing, blanching, conveying and slicing of potatoes, peas, salad and sugar beet. Chemistries include silicone, silicone polyol, vegetable oil and polyol. Grades comply with European and FDA regulations; many are kosher and halal approved.

F2010: silicone 10%, 5 to 90 °C
F687: silicone polyol, up to 100 °C
F2879: vegetable based, 100%
F2887: polyol for sugar beet

FoamDoctor Antifoams for Meat, Dairy and Drinks

For meat and seafood processing, dairy membrane plants, drinks, jam and sweets FoamDoctor offers silicone, vegetable and polyol grades. FoamDoctor F2010 is a food safe foam control agent based on E900 grade polydimethylsiloxane, while F2960 is designed for blood products and membrane filtration.

F788: vegetable oil 42%, membrane plants
F3014: polyol 50%, membrane plants
F695: silicone polyol, up to 100 °C
F2025: vegetable oil, brine, 100%

FoamDoctor Antifoams for Fermentation and Pharmaceuticals

For beer, wine, spirits, citric and glutamic acid, yeast, antibiotics and enzymes FoamDoctor offers polyol, vegetable oil, mineral oil and silicone grades. Polyalkylene glycol based F2875 and F1075 are silicone and silica free, so they do not create filtration or oxygen transfer problems.

F2875: polyol 100%, antibiotics
F2768: vegetable polyol, 30–40 °C
F3011: E900 silicone, 10–100 ppm
A10FG: silicone emulsion 10%

FoamDoctor Antifoams for Wastewater and Recycling

FoamDoctor suppresses foam in secondary treatment tanks, aeration basins, anaerobic digesters and sludge dewatering, and in plastics and aggregate recycling. Effluent grades are based on vegetable oil and polyol, while plastics grades are silicone and mineral oil emulsions.

F1065: aeration and activated sludge, 100%
F1085: vegetable oil, anaerobic digesters
G1083: mineral oil emulsion 25%, plastics
G1101: silicone 10%, hot plastics recycling

FoamDoctor G Antifoams for Paints, Adhesives and Textiles

FoamDoctor G-series grades based on mineral oil, hydrocarbons and silicone are added to water based and solvent based paints, varnishes, adhesives, latex, emulsion polymerisation and cleaners. In textiles they control foam during washing, scouring and dyeing over a wide temperature and pH range.

G2898: mineral oil, 100%
G2951: solvent based paints and varnish, 100%
G1165: water based paints and stains, 25%
G205A: silicone emulsion 5%

Emulsion, Prosil and Waxil Silicone Emulsions

Emulsion GPS35 Xpress and Emulsion S50 are polydimethylsiloxane emulsions in water: mould release for foundries, tyre re-moulding and rubber hose, an additive to polishes and a spinning lubricant for synthetic fibres. Prosil E70 serves latex foam, and Waxil 30 is a thread lubricant.

GPS35 Xpress: silicone emulsion 35%
S50: silicone 50%, textile softening
Prosil E70: 0.3–0.5% of dry rubber
Waxil 30: silicone and wax, 30%

Release Coatings and Lubricants for Bakeries

Release Coat PW5130 is a semi-permanent methylphenylpolysiloxane coating for industrial bread pans and cake tins that meets US FDA, German BfR and EU criteria for food contact. Cuperol and Cuperol HT serve oven chains, while Proverol is a food safe lubricant for provers and coolers.

PW5130: silicone resin 30%
Cuperol HT: oven chains up to 600 °C
Prodet X317: chain lubricant with detergency
Proverol: food safe prover lubricant

Silstrip Silicone Removers and Construction Silicones

Silstrip NH chemically digests cured and uncured silicone elastomers, leaving remnants easy to rinse away with water or solvent; it is free of halogenated solvents and dichloromethane. Greasil 4000 is a WRAS approved grease for plastic water pipes, and PW23 is a water repellent for plasterboard.

Silstrip NH: liquid 19%
Silstrip NHLO: liquid 9%
Silstrip NH Thixo: gel 19%
Greasil 4000: WRAS approval No. 2009520

Choosing the Antifoam Base by Medium and Process

Silicone grades based on E900 polydimethylsiloxane (FoamDoctor F2010, F3011) work in hot and cold foaming systems over a wide pH range and suit washing, conveying and processing of food raw materials.

Where silicone is unwanted, polyalkylene glycol grades are used: FoamDoctor F2875 and F1075 are silicone and silica free, so they do not create filtration or oxygen transfer problems in fermentation.

Paints, latex and emulsion polymerisation take grades based on hydrocarbons and non-ionic surfactants, for example FoamDoctor G2898 at 100% active; textile and paper processing with high shear forces takes the silicone emulsion FoamDoctor G205A.

Dosing and Temperature Range

Fermentation antifoams are added continuously via a metered pump; typical FoamDoctor F3011 dosage is between 10 and 100 ppm, and for very low dosage rates it is pre-diluted with soft or distilled water.

F2768 is designed for fermentation between 30 and 40 °C, F2768E for use over 40 °C. In potato processing F739 and F2025 work between 5 and 30 °C, F2879 between 5 and 40 °C, and F687 between 5 and 100 °C. In paint manufacture the G2898 dose can be split between the pre-grinding and the let-down stage.

The manufacturer recommends optimising the exact dosage by trial.

Food Compliance and Documents

Food-grade FoamDoctor agents comply with European and FDA regulations, and many are kosher and halal approved. FoamDoctor F2010 complies with US FDA CFR 21 173.340 (defoaming agents) and EU Regulation (EC) 1333/2008 on food additives.

The active component of F3011 is listed under EU 1129/2011 and EU 231/2012 as polydimethylsiloxane E900 and under INCI as simethicone. Release Coat PW5130 meets US FDA, German BfR and EU criteria for food contact.

PennWhite prepares safety data sheets in accordance with REACh Regulation (EC) 1907/2006 as amended by (EU) 2020/878 and provides them on request.

Silicone Emulsions and Lubricants by Purpose

Emulsion GPS35 Xpress is a frost-stable concentrate; on high-speed heat-set web-offset presses it re-texturises the web. Emulsion S50 has a low viscosity that promotes accurate dilution via proportional dosers.

Prosil E70 is added at 0.3% to 0.5% of dry weight of rubber at the compounding stage; it reduces tackiness, compression set and coarse bubbles in wet foam. Greasil 4000 is listed by WRAS under Approval No.

2009520 as a pipe joint lubricant for potable water systems, and its dielectric strength is around 15 kV/mm.

PennWhite and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of PennWhite and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.