A range of silicone-free defoamers for aqueous systems many of which are suitable for use at elevated temperatures.
DeCAL 5011 is a complex mixture of oils and low foam emulsifiers. It does not contain silicone oil or alkyl phenol ethoxylates.
DeCAL 5011 is a more effective version of DeCAL 5010 for use in demanding applications.
Foam Control Agent for Emulsion Paints and Coatings. DeCAL 5030 has been specifically developed to reduce air entrainment during the manufacture and application of water-based paints and adhesives.
As well as several uses in the paints and adhesives industries, DeCAL 5030 can also be used in the paper Industry for clay / latex and starch size press coatings
DeCAL 5030 and 5032 are designed to release bubbles and control foam generated in a wide range of aqueous systems containing surfactants.
They are blends of non-ionic surfactants and hydrophobes in a highly refined mineral oil with DeCAL 5032 containing a low level of silicone oil.
Water-Based Paints – Aqueous paints have an inherent tendency to aerate and foam due to the presence of emulsifiers in resin binders. DeCAL 5030 and 5032 effectively combat air entrainment and foam by promoting bubble coalescence in the bulk and bubble breaking at the surface. DeCAL 5030 and 5032 are designed for moderate to high PVC systems, viz. matt and sheen paints.
Adhesives and Grouts – DeCAL 5032 is most effective in PV acetate-based adhesives/grouts. Acrylic based adhesives respond better to DeCAL 5030.
Carpet Backing and Paper Coating – DeCAL 5030 is recommended for anchor coats and primary backings for carpets. In paper coating, both are recommended for use in coatings colours, with similar preferences to polymer binds as in paints.
Effluent Treatment – DeCAL 5032 is recommended for foam generated during sludge separation through centrifuge or belt presses.
DeCAL 5040 Chemical Type:
Water extended, mineral hydrocarbons, silica and surface active materials.
DeCAL 5040 is a highly effective foam control agent for emulsion paints, coatings and adhesives. The product utilizes new water in oil technology, to deliver a cost effective product specifically developed to reduce air entrainment during the manufacture and application of water based paints, adhesives and coatings.
DeCAL 5040 has long lasting efficiency – particularly useful where “in can” life is important. It is also useful in the Paper Industry for clay / latex and starch size press coatings.
DeCAL 5040 is suitable for use with a wide variety of copolymers including: PV Versatate copolymers, pure acrylics, styrene acrylics, CSBR, PV Acetate homo- and co-polymers, including pressure polymers with vinyl chloride and ethylene, acrylate co-polymers.
DeCAL 5040 is normally used as delivered.
In emulsion paint systems we recommend adding half to the pigment grind and the balance to the final blending.
The level of addition recommended is 0.1 – 0.5% depending on the severity of the foam problems.
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