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OpTiMat™ Matting Agents

OpTiMat™ matting agents possess many special properties

 

Exceptional Matting for Smooth Surface Paints

When it comes to selecting matting agents to enhance your architectural coating surfaces, OpTiMat™ matting agents are the leading products in the decorative industry. OpTiMat™ matting agents exhibit unique performances and are available in 3 grades to accommodate a wide range of surface aspect requirements.

 

Excellent Matting Power

OpTiMat™ matting agents are made with the highest quality materials. Its exceptional purity, whiteness and particle size distribution are among the key parameters that make them suitable for a broad range of paints.

 

Multifunctional Characteristics

In addition to high matting performance, OpTiMat™ matting agents possess many special properties:
bullet-point Excellent matting effect
bullet-point High brightness
bullet-point Burnish and scrub resistance
bullet-point Film permeability control
bullet-point Inertness
bullet-point Low bulk and specific density
bullet-point No significant crystalline silica (<0.1%)
bullet-point Rheology modifier
bullet-point Ease of dispersion

 

Physical Properties

 

  OpTiMat™ 3060 OpTiMat™ 2550 OpTiMat™ 2040
Hegman 0.5 1.0 3.0
Bulking Value 90 90 90
Refractive Index (g/l) 1.52 1.52 1.52
Brightness 82 82 84
Median Particle Size (D50) 30 25 20
Specific Gravity 2.1 2.1 2.1
Oil Absorption 215-225 200-210 185-195

 

The physical properties of the products represent typical values obtained in accordance with World Minerals test methods and are subject to manufacturing variations. They are provided here as a general reference only, are subject to change without notice, and should not be relied on for any particular application.

 

Product Consistency and Quality

The OpTiMat™ matting agents production process is unique. An extremely high level of quality is achieved, thanks to our rigorous control of particle size distribution, providing excellent consistency
in performance.

 

Exceptional matting for smooth surface finishes

OpTiMat™ matting agents consist of unique three-dimensional particle shapes that provide exceptional matting properties at low loading rates without sacrificing the surface smoothness of the finished coating. Due to control of particle size, OpTiMat™ matting agents create enough surface roughness to matt paints and keep good film properties such as burnish and scrub resistance.

 

Formulation Example: 68 PVC Water-Based Paint (%)

 

  OpTiMat™ 2550 Coarse CaCO3 Coarse Talc
Water 41.8 41.5 41.4
Proxel GXL 0.2 0.2 0.2
Natrosol Plus 330 0.4 0.4 0.4
Propylene Glycol 1.7 1.7 1.7
Orotan 731A 0.7 0.7 0.8
Triton CF10 0.4 0.4 0.4
AMP 95 0.1 0.1 0.2
Drew Plus L475 0.5 0.5 0.5
TiO2 8.8 9.2 9.2
Polestar™ 200P 7.0 6.9 6.9
CaCO3 - 3µm 16.2 16.1 16.1
CaCO3 - 5µm 7.7 0.0 0.0
Coarse Carbonate 0.0 9.2 0.0
Coarse Talc 0.0 0.0 9.2
OpTiMat™ 2550 1.4 0.0 0.0
Acrylic Binder 11.6 11.5 11.5
Texanol 0.7 0.7 0.8
Acrysol RM825 0.9 0.8 0.8

 

Paint Film Properties at Constant Sheen of 85°

 

  OpTiMat™ 2550 Coarse CaCO3 Coarse Talc
Density 1.38 1.39 1.38
1.38Viscosity KU @ 25°C 94 91 90
Paint pH 8.8 8.8 8.8
C. Ratio 150 µm 97.8 96.2 97.5
C. Ratio 75 µm 98 96.6 97.9
Reflectance 92.1 91.8 91.6
Whiteness 85.2 85.2 85.1
Yellowness 2.5 2.3 2.3
Hunter L 96 95.8 95.7
Hunter a -0.6 -0.6 -0.6
Hunter b 1.5 1.4 1.4
Gloss @ 60 deg 2.3 2.3 2.3
Sheen @ 85 deg 4 4.4 4
Tint Strength 49.8 49.4 49.9
Burnish Resistance
(Gloss @ 60deg/Sheen @ 85 deg)
1.2/5 1.3/6.9 2.1/8.2

 

Surface smoothness and performance

The particle shapes in OpTiMat™ matting agents and homogeneity of dispersion in paint film delivers very good mechanical performance while maintaining excellent surface smoothness. The paint film surface is altered just enough to scatter the light to obtain the desired matt effect.

 

For detailed formulation advice please contact us

 

Product Related Literature

PDF FileOpTiMat™ - Ultra-efficient matting agents for deep matt decorative paints [581KB]

 

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©Imerys Minerals Ltd. 2012 | Registered office: Par Moor Centre - Par Moor Road - Par - Cornwall - PL24 2SQ UK | Company No: 269255