Teraseal 365 Penetrating Silane-Based Sealer

Penetrating Silane-Based Sealer Teraseal 365

High-Penetration Silane Water Repellent (Solvent-Free) for Mineral Substrates

TERASEAL™ 365 is a high-performance, reactive silane-based hydrophobizing impregnation developed for long-lasting protection of porous mineral and cementitious surfaces. It is designed to penetrate deep into the substrate’s pore and capillary network and react with surface hydroxyl groups, forming a durable hydrophobic barrier inside the substrate rather than as a surface film. This internal protection helps keep façades, concrete structures, and masonry drier for longer, reducing water-driven deterioration mechanisms.

Unlike conventional coatings that can block breathability, TERASEAL™ 365 maintains the natural water-vapor permeability of mineral substrates, helping moisture escape while preventing new water ingress. By minimizing water uptake, it also helps limit the transport of dissolved salts and contaminants that contribute to efflorescence, staining, freeze–thaw damage, and reinforcement corrosion risks. The treatment is typically invisible after curing and supports a clean, natural appearance of the surface when applied correctly.

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

Surface condition

Substrate should be clean and air-dry for best penetration.

Temperature

Apply typically between 0°C to 40°C; avoid rain, high wind, and direct water contact during application.

Important

The product should not contact water during application.

Properties

Parameter	Unit	Specification / Typical Value
Product Type	—	Reactive silane water repellent (impregnation)
Appearance	—	Clear, colorless liquid (typical)
Solvent Content	—	Solvent-free formulation (typical)
Active Ingredient Content	%	97 – 100
Density (20°C)	g/cm³	~0.88
Boiling Range	°C	175 – 186
Flash Point	°C	> 57
Application Temperature Window	°C	0 – 40
Micro-crack Protection (guidance)	mm	Up to ~0.3
Storage Temperature	°C	-10 to 40
Shelf Life (unopened)	Months	≥ 6
Packaging	—	25 L / 205 L / 1000 L (typical)

Benefits

Develops a strong water beading effect on suitable mineral surfaces.

Reduces water uptake and limits transport of water-borne salts (e.g., chlorides).

Deep penetration in absorbent mineral substrates when applied on an air-dry surface.

High alkali resistance; suitable for alkaline cementitious materials.

Helps protect micro-cracks up to ~0.3 mm by hydrophobizing the pore structure around them.

No visible film formation; appearance typically unchanged (trial patch recommended).

Recommended Application & Dosage

Consumption depends on substrate porosity and surface condition. Always perform a site trial.

Typical Consumption (Guide Values)

Substrate	Approx. Consumption
Concrete / Masonry	150–250 g/m²
Natural stone (porous)	100–200 g/m²
Ceramic tiles	~100 g/m²

Can be applied neat or diluted (1:1 to 1:5) with suitable solvents depending on penetration requirements.

Apply by flooding / flow coating to full saturation.

Do not atomize; allow liquid to remain on the surface for several seconds for penetration.

Application Notes

Substrate must be clean, dry, and absorbent

Application temperature: 0 °C to 40 °C

Avoid application during rain, strong wind, or direct moisture exposure

Protect non-absorbent surfaces (glass, metal, plastics) during application

Perform a test patch before full-scale application

Safety & Handling

For professional / industrial use

Avoid skin and eye contact

Avoid inhalation of vapors

Use protective gloves, goggles, and adequate ventilation

Refer to SDS for detailed safety information.

Storage

Store in original, tightly sealed containers

Storage temperature: –10 °C to +40 °C

Protect from moisture and direct sunlight

Shelf life: minimum 6 months under recommended conditions

Packaging Information

25 Litre cans

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