VARIPHOB® AC 2552

Identification & Functionality

Chemical Family

Siloxanes

CASE Ingredients Functions

Water Repellent

Technologies

CASE Ingredients

Product Families

CASE Ingredients — Additives

Surface Modifiers

Features & Benefits

Labeling Claims

Cyclic silicone-free,

Environmentally Friendly

CASE Ingredients Features

Dirt Pickup Resistance,

Good Beading Effect,

Good Film Former,

High Durability,

Water Resistance

Key Attributes

• Strongly reduces the capillary water absorption
• Improves the water vapor permeability
• Increases the surface hydrophobicity
• Low tendency to dirt pick-up
• High durability in the final coating (the crosslinking character of VARIPHOB® AC 2552 prevents it from being washed out)
• Film-forming
• Easy to incorporate
• Free from organic solvents
• Free from cyclic silicones D4/D5/D6 (<0.1%)
• Free from MIT

Applications & Uses

Markets

Building & Construction

Applications

Building & Construction — Building Materials

Plasters & Renders

Compatible Polymers & Resins

Silicones

Coating Type

Waterborne Coating

Use Level

4.0 - 8.0 %

Application Technique

• VARIPHOB® AC 2552 is especially recommended for pigmented formulations.
• Preferred Application Fields:
  • Dispersion paints and plasters
  • Silicate paints and plasters
  • Silicone resin paints and plasters

Recommendation for Use

• We generally recommend adding 4.0 - 8.0 % VARIPHOB® AC 2552 in aqueous coating systems related to the total formulation.
• The optimal dosage has to be determined in pre-trials.
• The product is typically considered a binder when calculating the pigment volume concentration due to its crosslinking character.
• In aqueous coating systems the product is added during or at the end of the production process.
• For an improved beading effect a combination with VARIPHOB® AC 1104 is recommended.

Properties

Physical Form

Liquid

Appearance

Milky white liquid

Typical Properties

	Value	Units	Test Method / Conditions
pH Value	4.4 - 6.6	—	—
Concentration	47 - 53	%	—

Storage & Handling

Shelf Life

12 months

Storage Conditions

• In closed original containers at room temperature (approx. 23°C) the product will be stable for at least 12 months.
• Stir before use.

Stability

• VARIPHOB® AC 2552 is sensitive to frost, after the impact of temperatures below the freezing point irreversible changes can occur.
• The containers must be protected from direct sun radiation and keep from temperatures higher than 30°C.