Hankuk Miboo Co., Ltd. - renown for its long tradition is shipbuilding substrate - is once again home to a highly innovative braeakthrough in glass manufacturing. Thanks to a new patented process, we are now producing INNOTEX LWA expanded glass from high quality recycled glass. Pre-processed, crushed glass is finely ground, mixed and formed.
The raw granules are then sintered in a special kiln at temperatures ranging between 750C and 900C. The outcome is an ecologically sound product, through and through, derived from pure material raw materails and manufactured via an enviromentally friendly production process.
  0.5 ~1.0mm
 0.25 ~0.5mm
INNOTEX LWA completely natural with many outstanding advantage.
More considerate treatment of the earth's natural resources has become a way of life. If a product can meet the challenge head-on, while at the same time offering a full series of beneficial features, then it's clearly a product with high future potential.
INNOTEX LWA - derived from completely natural raw materials, fully recyclable and with optimal physical insulation properties - is one of these breakthroughs.

• free from harmful substances
• much lighter than water
• not flammable
• heat - and cold - insulating
• highly resistant to acids and caustic solutions
• highly resistant to organic solvents
• purely mineral
•pressure - resistant
• solid and durable
• and, fully recyclabe
  The swelling process causes the build-up of small air pores.
The outcome : INNOTEX LWA is much lighter than water, pressure-resistant and highly heat-insulating
INNOTEX LWA is available in 4 different grain sizes :
INNOTEX LWA is characterised by a uniform, finely porous structure and a compact, closed surface. These features contribute to the product's compressive strength and durability, as well as its high thermal insulation and low density filling properties.
INNOTEX LWA has unlimited application opportunities.
Today, INNOTEX LWA is being used as a fibre-free, non-toxic, highly heat-insulating filler or as a lightweight aggregate to mortar and plaster systems.
Or, as aggregate to high-performance structural lightweight concrete and heat-insulating concrete, as well as levelling material inn the renovation of old ceiling and floor structure. It is even being used in the production of plaster exteriors, profiling elements and fireproof panels.

INNOTEX LWA's unique characteristics are opening up countless other applications in the most diverse fields-ranging from agriculture and car manufacturing, all the way through to the chemical, aviation and space technology industries.
The future will undoubtedly reveal further application opportunities for INNOTEX LWA
INNOTEX LWA is produced and supplied in four grain sizes. It can be delivered by silo tanker, tipper, in big-bags or sacks. Fraction size can be adapted to customer requirements provided that a sufficient quantity is ordered.
Grain size
Bulk density
Grain density
0.25 - 0.5 0.30 0.54
0.5 - 1.0 0.25 0.45
1.0 - 2.0 0.22 0.35
2.0 - 4.0 0.19 0.29
INNOTEX LWAgranulate is light and has an enormous compressive strenth, thus making it ideal for fillers both in a bonded and a unbonded form.
• Bulk density and grain strength :
Grain size
Bulk density
Pressure value
0.25 - 0.5 0.30 11 - 15
0.5 - 1.0 0.25
1.0 - 2.0 0.22
2.0 - 4.0 0.19
• Thermal conductivity λ 10tr :
Grain conductivity
Thermal conductivity
(w/m K±10%)
0.25 - 0.5 0.078
0.5 - 1.0 0.069
1.0 - 2.0 0.069
2.0 - 4.0 0.063
INNOTEX LWA is ideally suited for the manufacturing of high-quality lightweight mortar. (dry density 0.7)
• Refer to the following data tables,
Parameter results Measuring unit Result
Compressive strength
kgf/㎠ 9.5
Adhesive shear strength
kgf/㎠ 12
Dry density
㎏/dm3 0.68
Thermal conductivity
W/(m·K) 0.148
Compressive strength in the joint
kgf/㎠ 38