Kwark® — Silica Aerogel Additives for High-Performance Materials
Silica aerogel in granular and powder forms — incorporate into your coatings, plasters, renders, and insulation formulations to enhance thermal, fire, and acoustic performance.
0.012 W/(m·K)
Intrinsic conductivity
−195 °C to +450 °C
Temperature range
Non-flammable
No toxic smoke, no flaming droplets
50–75 kg/m³
Bulk density
What is Kwark®
Silica aerogel as a raw material for your formulations
Kwark® is Enersens’ line of silica aerogel granules and powders, designed for incorporation into third-party products and formulations. Mix Kwark® into plasters, renders, coatings, or use it as loose-fill insulation — and benefit from the exceptional thermal, fire, and acoustic properties of silica aerogel.
With an intrinsic thermal conductivity of 0.012 W/(m·K) and a bulk conductivity of 0.018–0.022 W/(m·K) as a granular bed, Kwark® delivers outstanding insulation performance at minimal weight. Stable from −195 °C to +450 °C, non-flammable, hydrophobic, and free of organic binders.
Available grades
Kwark® is available as granules or fine powder. Other particle size distributions available on request.
Kwark® GL
Granules · 10–3500 µm
Silica aerogel granules for insulating plasters, renders, gap filling, and loose-fill cavity insulation. Suitable for formulations where granular texture and coarser particle size are acceptable or desirable.
Bulk density: ~75 kg/m³
Bulk thermal conductivity: 0.018–0.022 W/(m·K)
Packaging: bags, big bags (FIBC), loose bulk
Kwark® XP100
Powder · 10–100 µm
Fine silica aerogel powder for thermal insulation coatings, paints, and formulations requiring high dispersion and smooth surface finish. Suitable for spray and trowel application systems.
Bulk density: ~50 kg/m³
Bulk thermal conductivity: 0.018–0.022 W/(m·K)
Packaging: bags, big bags (FIBC), loose bulk
Samples & ordering
Sample quantities are available through our online shop. For bulk orders, custom particle sizes, or technical questions about incorporating Kwark® into your formulations — get in touch.