EFKA® SI 2008 is a de-aerating agent especially for medium- and long-oil alkyds, 2-pack epoxies, unsaturated polyester and PUR systems. It can be used in clear and pigmented coatings.

EFKA SI 2008 is a universal de-aerating agent for thick-layer systems such as industrial floors, casting and sealing compounds, unsaturated polyester resins, 2-pack epoxy and 2-pack PUR resins. It allows bubble-free films and surfaces even at film thicknesses of more than 1 mm. EFKA SI 2008 can also be used in thinner films and airless application. It does not affect the transparency of coatings and shows its advantages in clear coatings.

EFKA SI 2008 can be used in a broad variety of applications, ranging from OEM to UV. It has excellent compatibility, making it easy to incorporate into a solution and high performing in clear coats while still proving to be an efficient de-aerator.

Is this the right defoamer to use in your system? Check out the Defoamers Selection Guide

Features & Benefits

• Fast and reliable foam suppression
• No haze, fogging, or impact on coating transparency
• High compatibility
• Excellent long-term persistency
• Suitable for medium- and long- alkyds, 2K epoxy, unsaturated polyester, and PUR systems
• Good for industrial, spray, and printing applications
• Effective in thick-layer (>1 mm) as well as low thickness systems

Recommended concentrations

• 0.3 – 1.0% on total formulation
• Post addition is possible, high shear forces for optimum dispersion of the additive are required.

Performance Data

EFKA SI 2008 in a 2-pack PUR system:

EFKA SI 2008 provides highly efficient de- aeration in 2K PUR systems*, one of its most common applications, which results in a foam- and bubble-free surface.

*Composition

• 100 p SOVERMOL® 1092
• 1 p EFKA SI 2008 / DISPEX® Ultra FA 4437 (2:1)
• 5 p Zeolith paste
• 68 p Isocyanate