HDK® H20

HDK® H20 is a synthetic, hydrophobic, amorphous silica produced via flame hydrolysis. It is a white colloidal powder of high purity. HDK® H20 is used as a thickening and thixotropic agent in coatings, printing inks, adhesives, cosmetics, and other applications. It also serves as a reinforcing filler in elastomers, particularly silicone-elastomers. Additionally, HDK® H20 acts as a free flow additive in the production of powder coatings.

Brand: HDK (36 products)

INCI Name: Silica, Silica Dimethyl Silylate

Chemical Family: Silica

Functions: Extender, Filler, Reinforcement, Rheology Modifier, Thickener, Thixotrope, Viscosity Modifier

Labeling Claims: Clean at Sephora, Credo Clean Standard, Cruelty-Free, Kosher, Ulta Beauty's Conscious Beauty

Certifications & Compliance: Comprehensive Environmental Response, Compensations & Liability Act (CERCLA), Cruelty-Free, EC No.1907/2006, Kosher, REACH Exempt (Europe)

Synonyms: Fumed Silica, Silica, Silicon Dioxide

Technical Data Sheet

Enhanced TDS

Knowde-enriched technical product data sheet

Identification & Functionality

Chemical Family: Silica
Chemical Name: Pyrogenic Silica
INCI Name: Silica,
Silica Dimethyl Silylate
CASE Ingredients Functions: Extender,
Rheology Modifier,
Thickener,
Thixotrope
Cosmetic Ingredients Functions: Filler,
Thickener,
Viscosity Modifier
Plastics & Elastomers Functions: Reinforcement
CAS No.: 68611-44-9
EC No.: 271-893-4
Technologies: CASE Ingredients,
Cosmetic Ingredients,
Elastomers
Product Families: CASE Ingredients — Additives
Fillers & Extenders,
Rheology Modifiers & Stabilizers
Elastomers — Elastomer Additives
Fillers & Extenders
Cosmetic Ingredients — Functionals
Rheology Modifiers,
Texturizers & Fillers

Features & Benefits

Benefit Claims: Anti-Caking,
Excellent Adhesive Properties,
Flow Enhancement,
High Purity,
Improved Thickness,
Viscosity Boosting
Labeling Claims: Clean at Sephora,
Credo Clean Standard,
Cruelty-Free,
Kosher,
Ulta Beauty's Conscious Beauty
CASE Ingredients Features: Improved Flexibility,
Water Resistance
Materials Features: Amorphous,
Anti-Blocking,
Free Flowing,
High Purity,
Hydrophobic
Specific Features: Hydrophobic

Applications & Uses

Markets

Electrical & Electronics,

Industrial,

Personal Care,

Printing & Packaging

Applications

Personal Care — Beauty & Care

Industrial — Leather & Textiles

Textile Manufacturing

Printing & Packaging — Printing & Inks

Flexography,

Gravure Printing,

Offset & Lithographic Printing,

Screen Printing

Electrical & Electronics — Wire & Cable

Jacketing & Insulation

Application Format

Leave On,

Ointments,

Powder

Compatible Polymers & Resins

Epoxies (EP),

Natural Rubbers (NR),

Synthetic Rubbers

AP/Deo Applications

Coating Type

Ink & Toner Type

Sun Care Applications

After Sun Products

Applications

Deodorants
Do It Yourself
Flexographic Printing
Gravure Printing
Hair Care
Make-up
Offset Printing
Powder Coatings
Rheology Control
Screen Printing
Sealants
Skin Care
Sunscreen

Application Details

HDK® H20 is applied as a thickening and thixotropic agent in coatings, printing inks, adhesives, cosmetics and others. It is used as a reinforcing filler in elastomers, mainly silicone-elastomers. HDK® H20 acts as a free flow additive in the production of powder coatings. HDK® H20 is not suitable for pharmaceuticals, food and feed. A good dispersion of HDK® H20 is a must to assure optimum performance.

Properties

Color

White

Physical Form

Powder,

Solid

Appearance

White colloidal powder

Typical Properties


	Value	Units	Test Method / Conditions
BET Surface (of the hydrophobic silica)	approx. 170	m²/g	DIN ISO 9277 DIN 66132
Density (at 20°C, SiO₂)	approx. 2.2	g/cm³	DIN 51757
Residual Silanol Content	50	%	-
SiO₂ Content (based on the substance heated at 1000°C for 2 hours)	min. 99.8	%	DIN EN ISO 3262-19

Specifications


	Value	Units	Test Method / Conditions
BET Surface (of the hydrophilic silica)	170 - 230	m²/g	DIN ISO 9277 DIN 66132
Carbon Content	1.0 - 1.8	%	DIN ISO 10694
Loss on Drying (at 105°C, 2 hours)	max. 0.6	%	DIN EN ISO 787-2
Sieve Residue (min. 40 µm)	max. 0.05	%	DIN EN ISO 787-18, Mocker Apparatus
Surface Modification	Dimethylsiloxy	-	-
Tamped Density	approx. 40	g/l	DIN EN ISO 787-11

Properties

White colloidal powder of high purity.

Regulatory & Compliance

Certifications & Compliance: Comprehensive Environmental Response, Compensations & Liability Act (CERCLA),
Cruelty-Free,
EC No.1907/2006,
Kosher,
REACH Exempt (Europe)
Chemical Inventories: AICS (Australia),
DSL (Canada),
ECL (Korea),
ELINCS (EU),
ENCS (Japan),
IECSC (China),
PICCS (Phillipines),
TCSI (Taiwan),
TSCA (USA)

Safety & Health

Safety Notes: During transportation and processing HDK® H20 may cause electrostatic charges. Like other amorphous silicas HDK® H20 does not show either carcinogenic (IARC classification, Volume 68, 1997) or mutagenic properties.