Stain Resistant Additive Chemetrete 450

Fluorinated Stone Sealer (Solvent) Chemetrete 450

Fluoroacrylate-Based Penetrating Sealer for Superior Oil, Water & Stain Resistance

CHEMTRETE 450 is a solvent-borne stone sealer based on advanced fluoroacrylate technology, engineered to deliver long-lasting water repellency, oil repellency, and stain resistance on porous mineral substrates. The product forms an ultra-thin, low surface-energy fluorochemical network within the pore structure of the substrate, effectively reducing liquid absorption while maintaining breathability.

CHEMTRETE 450 is designed to protect natural stone, marble, terracotta, concrete, and cementitious surfaces, helping preserve appearance, simplify cleaning, and extend service life. In most cases, it retains the natural look and feel of the stone without forming a visible surface film.

The product can be used either as a penetrating stone sealer or as a performance additive in solvent-based stone sealer and coating formulations.

General Characteristics

Synonyms

Zeolite Silver Antimicrobial Powder/ Ag-Zeolite Powder

CAS No.

1318-02-1

EC/EINECS

215-283-8

HS Code

3824.99.00

UN/Transport

not classified as dangerous goods

True density

2.1–2.3 g/cm³

Mohs hardness

4–5

Dosage

0.1%

Applications

Substrates

Natural stone (granite, sandstone, limestone)
Marble and terracotta
Concrete and cementitious surfaces

Typical Use Areas

Interior and exterior stone flooring
Facades, walls, and architectural elements
Pathways, pavements, and utility areas
Solvent-based stone sealer formulations

Properties

Property	Value
Appearance	Clear to yellowish liquid
Solids Content	~40%
Carrier Solvent	Ethyl acetate
Density	~1.0 kg/L
Flash Point	~-4°C
Boiling Point	~77°C
Freeze–Thaw Stability	Stable down to −23°C
Shelf Life	24 months
Maximum Storage Temperature	50°C

Benefits

Water repellency

Reduces water absorption and moisture ingress, helping prevent damp-related staining and damage.

Oil and stain resistance

Provides strong resistance to oils, grease, and staining liquids commonly encountered on stone surfaces.

Reduced dirt pick-up

Low surface energy limits dirt adhesion, resulting in easier maintenance and longer-lasting cleanliness.

Preserves natural appearance

Designed to protect without significantly altering the surface look or texture in most applications.

Formulation flexibility

Can be used as a standalone penetrating sealer or as an additive to enhance stain resistance in solvent-borne systems.

Typical Dosage & Formulation Guidance

As an additive in solvent-borne sealers or coatings

Recommended level: 0.2 – 2.5% (active content)

Exact dosage depends on substrate porosity and required stain resistance level.

As a penetrating stone sealer (starter formulation)

Typical formulation (by weight):

Solvent or solvent blend: 94%

CHEMTRETE 450: 6%

Solvent selection plays a critical role in penetration and performance; compatibility testing is recommended.

Safety and Hazards

Flammable solvent-borne product

Intended for professional, industrial, and architectural applications

Not recommended for food contact, medical, cosmetic, or pharmaceutical uses

Recommended PPE

Solvent-resistant gloves
Safety goggles
Organic vapor respirator where ventilation is insufficient

Always follow local safety regulations and handling guidelines.

Storage

Store in tightly sealed original containers

Keep away from heat, sparks, and ignition sources

Store in a cool, dry, well-ventilated area

Do not store above 50°C

Packaging Information

25 kg pails

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