Siltech – Foam Control for Coatings


Silicones are widely used as defoamers and anti-foamers in industrial applications.  This is not only limited to paints and coatings, but also includes pulp and paper, laundry, water treatment, dry cleaning, distillation and metal working.

Siltech manufactures a range of products, broadly summarised in the table below.

Foam control levels range from high to low, although this also depends upon the foaming medium.

Some products work better in solvent borne systems, and others in water-based systems.

Many are 100% active, whilst others can be purchased in emulsion form.

It is always recommended to mix defoamers and antifoams before use, since settling is common.

Please contact us for the specifics around regulatory compliance.

Please contact dave.wilson@siltech.com

Category Defoamer Defoaming Rating (1=best) Compatible with SB system Compatible with WB system % Activity Diluent Description Base Compound Select FDA Compliance Stability
High Performance Silicone Compound (HPSC) Siltech P-982 1 M L 100 na Dispersible Compound P-950 No Stable
Siltech P-950 1 M L 100 na Compound P-950 Yes Stable
Siltech PA-520 1 M L 100 na Compound P-950 No Stable
Siltech C-4852 1 M L 100 na Dispersible Compound P-950 Yes Stable
Siltech TC15-47G 2 L M 40 water Emulsion P-950 No Stable
Siltech TC15-54D 2 L M 30 water Emulsion P-950 Yes Stable
PA-140 Siltech PA-140 2 M M 100 na Dispersible Compound PA-1100 Yes Stable (mix before use)
Siltech PA-1100 2 M L 100 na Compound PA-1100 Yes Stable
Siltech C-4830 3 L M 40 LTX Compound PA-1100 No Stable
Siltech C-4800 3 L M 65 LTX Compound PA-1100 No Stable
Siltech TC11-58B 3 L M 25 LTX Compound PA-1100 No Stable
Siltech PA-1410 4 L M 15 water Emulsion PA-1100 No Stable (mix before use)
Siltech TC15-47A 3 L M 40 water Emulsion PA-1100 No Stable
Formulated Silsurf types Siltech C-4700 4 H M 100 na Dispersible Compound Silsurf G8-M No Stable (Mix before use)
Siltech C-4726 4 H M 100 na Dispersible Compound Silsurf G8-M No Stable
Siltech C-4660 5 L M 60 water Emulsion Silsurf G8-M No Stable (Mix before use)
Siltech 5800 based Siltech C-4760 5 L H 60 water Emulsion Siltech 2200 No Stable (Mix before use)
Siltech 5800 5 M M 100 water Emulsion Siltech 2200 No Mix before use
Siltech 5821 5 M M 75 water Dispersion Siltech 2200 No Mix before use
Siltech C-4250 6 L H 15 water Emulsion Siltech 2200 No Stable (Mix before use)
Siltech C-4900 6 L M 65 LTX Compound Siltech 2200 No Stable (Mix before use)
Siltech C-4930 6 L M 40 LTX Compound Siltech 2200 No Stable (Mix before use)
Silsurf Defoamer Siltech C-4707 6 L H 50 water Emulsion C-4714 No Stable
Siltech C-688 6 L H 100 na Dispersible Compound C-688 Yes Stable
Siltech TC15-29M 6 L M-H 20 water Emulsion C-688 Yes Stable
Siltech C-4714 6 L H 100 na Dispersible Compound C-4714 No Stable
Siltech C-4716 6 L H 100 na Compound C-4714 No Stable
Silsurf Di-15I 6-7 L L 100 na Silsurf Di-15I No Stable
Siltech C-1015 6-7 L L 100 na Dispersible Compound Di-15I No Stable
Siltech 2200 based (filled silicone oil type) Siltech 2200 7 M L 100 na Compound Siltech 2200 Yes Stable (Mix before use)
Siltech 2300 7 M L 100 na Compound Siltech 2200 Yes Stable (Mix before use)
Siltech 2500 7 M L 100 na Dispersible Compound Siltech 2200 Yes Mix before use
Siltech 4200 7 H L 100 na Compound Siltech 2200 Yes Stable
Siltech 2250 7 H L 100 na Compound Siltech 2200 Yes Stable
Sunpar Oil Siltech C-8490 8 H L 100 na Compound C-8490 Yes Stable (Mix before use)
Siltech C-8500 8 H L 100 na Compound C-8490 Yes Stable (Mix before use)
Silwax C-4300 8 H L 100 na Compound Silwax 3H2-MS No Mix before use