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UNIQ®FOAM – Defoamers, anti-foam and air-release agents

A defoamer or an anti-foaming agent is a chemical additive that reduces and hinders the formation of foam in industrial process liquids. Commonly used agents are insoluble oils, polydimethylsiloxanes and other silicones, certain alcohols, stearates and glycols. The additive is used to prevent formation of foam or is added to break a foam already formed. We can make a distinction between macro- and micro-foam. Macro-foam is often formed at the surface of the coating and micro-foam is entrapment of air bubbles what is not able to rise fast enough to the surface. For micro foam you need a so-called air release agent to coagulate the micro bubbles to bugger air bubbles so they can rise faster to the surface to be destroyed.In industrial processes, foams pose serious problems. They cause defects on surface coatings. They prevent the efficient filling of containers. A variety of chemical formulae are available to prevent formation of foams.Properties: Generally a defoamer is insoluble in the foaming medium and has surface active properties. An essential feature of a defoamer product is a low viscosity and a facility to spread rapidly on foamy surfaces. It has affinity to the air-liquid surface where it destabilizes the foam lamellas. This causes rupture of the air bubbles and breakdown of surface foam. Entrapped air bubbles are agglomerated, and the larger bubbles rise to the surface of the bulk liquid more quickly.

TDSUNIQ®FOAMCHEMISTRY
SB
SF
WB
DOSAGE(%)FEATURES
120 SNon-silicone
0.1-1.0Strong defoamer especially against macro-foam, can cause haze in high gloss clear coatings
130 SNon-silicone
0.1-1.0Strong defoamer, with improved compatibility compared to 120S
131 SNon-silicone
0.1-1.0Strong defoamer, very suitable for clear and pigmented coating
132 SNon-silicone
0.1-1.0Strong defoamer, very suitable for clear coating, espcially against popping and pinholing.
150 SNon-silicone
0.1-1.0Strong defoamer, very suitable for self leveling clear floor coatings. Doesn’t cause haze or turbidity in the dry film.
152 SNon-silicone
0.1-1.0Strong defoamer, very suitable for self leveling floor coatings like epoxy and coil coating. Fast air-release and defoaming properties and excellent film properties.
170 SNon-silicone
0.1-1.0Suited for UPE, HS coatings like epoxy and 2K PU
175 SNon-silicone
0.1-1.0Suited for OPV, UV and High gloss coatings
180 WNon-silicone
0.3-3.0Levelling and anti-popping additive.
235 SSilicone
0.1-0.6All round defoamer for spray, rolling, brushing and curtain coatings
238 SSilicone
0.1-0.7Easy incorporable for top and clear coating

245 SSilicone
0.1-0.6Alround defoamer for spray, rolling, brushing and curtain coatings. Very good working against micro foam.
265 WSilicone
0.1-1.0Strong defoamer for grinding conditions, long lasting, low dosage.
272 SSilicone
0.1-1.0Very suited for self leveling epoxy, HS- epoxy, 2K PU and HS 2K PU coatings/primers.
280 WSilicone
0.1-1.0Defoamer for high gloss coating,coating systems, excellent compatibility
290 WSilicone
0.1-1.0Excellent effectiveness against micro-foam in airless/airmix
295 WSilicone
0.1-1.0Strong high shear stable defoamer for grinding processes

TDSUNIQ®FOAMCHEMISTRYDOSAGE(%)
SB
WB
FEATURES
7032Non-silicone0.1-0.7
Strong effective non-silicone defoamer, less inter adhesion influence
7045Non-silicone0.1-1.0
Strong effective defoamer, suitable clear varnish
7061Silicone0.1-1.0
Good compatibility, suitable for high gloss top coating
7087Non-silicone0.1-1.0
Excellent compatibility, suitable for high solid formulation
7098Non-silicone0.3-3.0
Anti-foaming and anti-poping in baking system, good leveling
7099Silicone0.1-1.0
Strong effective silicone defoamer, suitable high solid and viscosity system
7108Silicone0.2-1.0
Good compatibility, suitable for high gloss coating
7119Silicone0.1-1.5
Effective foam release and defoaming property
7124Silicone0.1-1.0
Strong defoamer, need high shearing rate to get consistant solution

TDSUNIQ®FOAMCHEMISTRYDOSAGE(%)FEATURES
P-509Non-silicone0.1-1.0Strong anti-foam and air-release agent especially suitable for ambient curing systems, eg Unsaturated polyester and epoxy based systems.
P-540Non-silicone0.1-1.0Silicone-free polymer-based air release additive for unsaturated polyester resins and gel coats.
P-555Non-silicone0.1-1.0Strong silicone-free polymer-based air release additive for solvent free unsaturated polyester resins, gel coats and cast resins
P-570Silicone containing0.1-1.0strong anti‐foam and air‐release agent especially suitable for ambient‐curing plastic systems, adhesives and sealants and coating industry. Especially suitable for epoxy based systems.
P-575Non-silicone0.1-1.0strong anti‐foam and air‐release agent especially suitable for ambient‐curing plastic systems, adhesives and sealants and coating industry. Especially suitable for epoxy based systems.
P-595Non-silicone0.1-1.0Strong anti-foam and air-release agent especially suitable for ambient curing systems, eg Unsaturated polyester and epoxy based systems.

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