Adhesive

Adhesives bond and seal various materials, suitable for metal, plastic, wood and other substrates. Featuring high bonding strength, temperature and corrosion resistance, they are widely used in manufacturing, construction, auto electronics and other fields, serving as essential basic chemical materials.

Fumed silica

Wacker HDK® fumed silica is an amorphous silica with extremely small particle size, large specific surface area, and high purity. Its applications span multiple industries, including new energy, composite materials, coatings and inks, adhesives, electronics and electrical appliances, and personal care products. Wacker, a German company, provides a complete portfolio of hydrophilic and hydrophobic fumed silica products under the HDK® trademark to customers worldwide, and offers customized technical support and packaging solutions according to the specific needs of different industries. The Wacker HDK® series of products have been widely used in various industries such as silicone rubber, unsaturated polyester resin, adhesives and sealants, paints and coatings, printing inks, cables, optical cable gels, lead-acid gel batteries, and cosmetics.

This product line includes 8 core models
Specification
V15
V15A
N20
T30
T40
H15
H18
H20
Hydrophilic/Hydrophobic
亲水
亲水
亲水
亲水
亲水
疏水
疏水
疏水
BET specific surface area
150±20 m2/g
150±20 m2/g
200±30 m2/g
300±30 m2/g
400±40 m2/g
150±20 m2/g
200±30 m2/g
200±30 m2/g
Bulk density(g/l)
Ca.50
Ca.50
Ca.40
Ca.40
Ca.40
Ca.40
Ca.40
Ca.40
Mass loss after drying at 105℃ for two hours
<1.0 wt%
<1.0 wt%
<1.5 wt%
<1.5 wt%
<1.5 wt%
<0.6 wt%
<0.6 wt%
<0.6 wt%
Residue on sieve(Mocker>40um)
<0.03 wt%
<0.03 wt%
<0.04 wt%
<0.04 wt%
<0.04 wt%
<0.05 wt%
<0.1 wt%
<0.05 wt%
Technical Documents