Turkey What are the Free of silicone defoamers for paints(1)

Defoaming agents are widely used in food industry, paper industry, water treatment, oil extraction industry, printing and dyeing industry, coating industry, detergent industry, rubber latex industry, aerosol industry, daily chemical industry, pharmaceutical industry, dairy industry, etc. [2]

agent

Turkey Selection of antifoaming agents for different applications:

Leveling agent is a commonly used coating additive that can promote the formation of a flat, smooth, and uniform coating film during the drying process. A class of substances that can effectively reduce the surface tension of finishing fluids and improve their leveling and uniformity. It can improve the permeability of the finishing liquid, reduce the possibility of spots and stains during brushing, increase coverage, and make the film formation uniform and natural. Mainly surface active agents, organic solvents, etc.

UV

Flat coating

Features: Low viscosity, low defoaming pressure

Recommendation: Mineral oils or mineral oil modified polyethers

oil

Elastic coating

dispersant

Features: High viscosity, high Free of silicone defoamers pressure

Recommendation: Polyether modified silicone

Surface coating and film covering adhesive

Recommendation: Polyethers, which can effectively prevent surface defects and have a small impact on gloss

Water in Water Colorful

water-based

Defoamer is an additive for eliminating foam. A large amount of foam will be produced in the production and application process of coatings, textiles, medicine, fermentation, paper making, water treatment, petrochemical and other fields, which will affect the product quality and production process. Based on the inhibition and elimination of foam, a specific amount of defoamer is usually added to it during production

Features: More surfactants, stable foam

Turkey Recommendation: Use polyethers or mineral oil to modify polyethers

Precautions for use of paint Free of silicone defoamers:

Before use, stir thoroughly and mix evenly; Adding the paint while stirring; Before use, it is generally not diluted with water; The dosage should be appropriate. Excessive dosage can cause shrinkage, edge shrinkage, poor brushing performance, and other problems; Too little dosage leads to poor defoaming effect; Add it in two stages, namely, add it in the grinding stage and the paint mixing stage, generally accounting for half of the total amount each time. Use defoaming agents with good foam suppression effect in the grinding stage, and use defoaming agents with good foam breaking effect in the paint mixing stage