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Borchers® AF 1171

1 of 18 products in this brand
Defoamer for Aqueous Systems, Solvent- and VOC-freeBorchers® AF 1171 is a polysiloxane, VOC-free anti-foaming agent and defoamer. This defoaming agent is ideal for preventing paint production and millbase foaming in aqueous decorative and general industrial systems. Borchers® AF 1171 works in solvent- and water-based coatings.

Functions: Anti-Foaming Agent, Defoamer

Chemical Family: Silicones

End Uses: Solventborne Coating, Waterborne Coating

Compatible Polymers & Resins: Alkyds, Polyurethanes (PU), Styrene Copolymers, Vinyl Acrylics

Labeling Claims: Solvent-free, VOC-free

Technical Data Sheet

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Identification & Functionality

Chemical Family
CASE Ingredients Functions
Technologies

Features & Benefits

Labeling Claims
Features
  • Improves film gloss, substrate wetting, color strength in pigmented systems
  • Avoids microfoam formation during manufacturing
  • Easy to emulsify in water
  • Should be used in grinding step, but can also be added in let-down or post-add
  • Supports quick air release of entrapped air in the surface during application
  • VOC-free

Applications & Uses

Compatible Substrates & Surfaces
Applications
  • Coatings based on
    • Water soluble alkyds
    • Polyurethanes
    • Styrenes
    • Straight and vinyl acrylates
    • Hydroxyl-bearing polyacrylates
Dosage
The recommended dosage is 0.05 – 1.50 % Borchers® AF 1171 to the total weight of the formulation depending upon the binder system and which property is being addressed. The exact dosage should be experimentally determined. In pigmented systems, 2/3 of the defoamer portion should be added to the grind and 1/3 to the letdown.

Properties

Physical Form
Appearance
Milky white liquid
Physical Properties
ValueUnitsTest Method / Conditions
Density (at 25°C)1.01 - 1.05g/mlISO 2811-3
Flash Point250°C
pHNeutral
Viscosity (at 25°C)210 - 290mPa.sASTM D 1638
Non-volatile Content (1g, 1h, 125°C)min. 98%ISO 3251

Regulatory & Compliance

Safety & Health

Safety
Please refer to our safety data sheet for information relating to product safety.

Packaging & Availability

Regional Availability
  • Global

Storage & Handling

Storage
Protect from the effects of weathering and store at temperatures between 5 and 30 °C. Once opened, containers should be resealed immediately after each removal of the product. Separation may occur, mix well before use.