PRODUCTS

SILRES BS 16

Silres BS 16 is used pre‐treatment of insulating materials and boards to impart water‐repellency.
Silres BS 16 is used for Gypsum and gypsum fiber boards.
Silres BS 16 is used with Lightweight materials such as foam concrete.

CAS number: 31795-24-1 (for potassium methyl siliconate)
EC number: 250-807-9
Molecular formula: Approx CH₅K₃O₃Si (for potassium methyl silanetriolate)
Molecular weight: ~ 208.4 g·mol⁻¹ (for the “pure” potassium methyl siliconate)

SYNONYMS:
Potassium methyl siliconate, Potassium methyl-silanetriolate, Methylsilanetriol potassium salt, Silicone water-repellent solution BS 16, SILRES BS 16, hydrophobizer for concrete, siliconate for brick, water-repellent impregnation, hydrophobization of mineral materials

Silres BS 16 is an aqueous solution of potassium methylsiliconate, intended for dilution with water and use as impregnation of mineral building materials, such as tiles, bricks, foam concrete, gypsum, perlite, vermiculite.
Silres BS 16 gives water-repellent properties thanks to the reaction with atmospheric CO₂, which results in the formation of polymethylsilicic acid.

Like all silicones, Silres BS 16 can cause the appearance of a white coating on the surface of painted materials or if you deviate from the instructions for use.
Silres BS 16 is an aqueous solution of potassium methyl siliconate and is used in diluted form for impregnation mineral construction materials to make them water-repellent.

Silres BS 16 develops its water-repellent properties by reaction with atmospheric carbon dioxide (CO2).
The active substance formed from the silicone masonry water repellent is polymethylsilicic acid.
As with all siliconates, however, Silres BS 16 can cause a white deposit on the surface of colored construction materials.

Silres BS 16 is an aqueous solution of Potassium methyl Siliconate and is used in diluted form for waterproofing building materials making them waterproof.
Silres BS 16 develops its waterproof properties by reaction with carbon dioxide (CO 2 ) in the air.

The active substance of Silres BS 16 formed from the silicone masonry waterproofing agent is polymethylsilicic acid.
However, as with all siliconates, Silres BS 16 may cause a white residue on the surface of building materials, or if used outside the application instructions.

Silres BS 16 can react with carbon dioxide in the air or other acidic compounds to form an insoluble mesh waterproof and breathable membrane inside and on the surface of the substrate.
Silres BS 16 has excellent waterproof, anti-seepage, moisture-proof, anti-aging and anti-pollution advantages.

Silres BS 16 has simple construction, low price, long-lasting effect, and is wear-resistant, brush-resistant, and resistant to high and low temperatures (-50~150ºC).
Silres BS 16 is an aqueous solution of potassium methylsiliconate.

Silres BS 16 is used as an additive to drilling fluids, a water-repellent additive to cements, and is also used in diluted form to impregnate mineral building materials to impart water-repellent properties.
Silres BS 16 acquires its water-repellent properties through interaction with atmospheric carbon dioxide (CO2).

Silres BS 16 is a colorless-yellowish liquid with a faint odor.
Silres BS 16 (potassium methyl siliconate aqueous solution) is a specialty hydrophobic impregnation agent for mineral building materials.
With CAS 31795-24-1 and EC 250-807-9, Silres BS 16 is an alkaline, water-dilutable silicate solution that upon application and reaction with CO₂ forms a polymethylsilicic acid layer in the substrate, providing water-repellent protection.

Major benefits of Silres BS 16 include long-term hydrophobicity, compatibility with mineral surfaces, and process ease.
Key safety/handling of Silres BS 16 issues stem from high alkalinity and corrosivity; correct container materials, dilution practice and uniform application are critical to success.

Silres BS 16 develops its water-repellent properties by reaction with atmospheric carbon dioxide (CO2).
The active substance of Silres BS 16 formed from the silicone masonry water repellent is polymethylsilicic acid.
As with all siliconates, however, Silres BS 16 can cause a white deposit on the surface of colored construction materials, or if used outside the application guidelines.

USES and APPLICATIONS of SILRES BS 16:
Fields of application of Silres BS 16: Hydrophobization of tiles, bricks, tiles, Foam concrete, gypsum materials, perlite, vermiculite, and Insulation materials, building panels.
Silres BS 16 is an aqueous solution of potassium methyl siliconate and is used in diluted form for the hydrophobic impregnation of mineral construction materials to make them water-repellent.

Applications of Silres BS 16: Impregnation of mineral construction materials for hydrophobic treatment: roof tiles, facing bricks, floor tiles, flower pots, aerated concrete, gypsum boards, light fillers (perlite, vermiculite).
Silres BS 16 is used pre‐treatment of insulating materials and boards to impart water‐repellency.

Silres BS 16 is an aqueous solution of potassium methyl siliconate and is used in diluted form for the impregnation of mineral construction materials to make them water-repellent.
Silres BS 16 develops its water-repellent properties by reaction with atmospheric carbon dioxide (CO2).

The active substance formed from the silicone masonry water repellent is polymethylsilicic acid.
As with all siliconates, however, Silres BS 16 can cause a white deposit on the surface of colored construction materials, or if used outside the application guidelines.

Applications of Silres BS 16: Boards & Panels, Construction Materials, Gypsum Wallboards and Gypsum Fiberboards, Hydrophobic Impregnation, Pre-Impregnation of Construction Materials.
Application of Silres BS 16: Imparting water repellency to: Low-fired clay products immediately after they have been made: e. g. roof tiles, facing bricks, floor tiles, flower pots, Aerated concrete, Gypsum and gypsum-based plasterboards.

Silres BS 16 is used light fillers, such as perlite, vermiculites and aerated concrete granules and Insulating materials.
Silres BS 16 is used to impart water-repellent properties to products that undergo the firing stage immediately after their manufacture, such as roof tiles, facing bricks, floor tiles, flower pots, etc.

Silres BS 16 is used hydrophobization of aerated concrete products.
Silres BS 16 is used gypsum and gypsum boards.
Silres BS 16 is used processing of lightweight fillers perlite, vermiculite.

Silres BS 16 is used insulating materials.
Silres BS 16 diluted with water is used to impregnate the surface of masonry materials when methods for achieving uniform coverage, such as dipping, are available.

Double application of Silres BS 16 is not recommended.
Silres BS 16 is not recommended for waterproofing exterior building walls, as uneven application may result in white spots.
Silres BS 16 is an aqueous solution of potassium methyl siliconate and is used in diluted form for the water-repellent hydrophobic impregnation of mineral building materials.

Silres BS 16 develops its water-repellent properties through reaction with carbon dioxide (CO2 ) from the air, forming methyl silicone resin.
Application of Silres BS 16: Creates waterproofing ability for: Baked clay products immediately after being fired: roofing tiles, tiles, vases, ceramic pots…

Silres BS 16 is used for Cement concrete.
Silres BS 16 is used for Gypsum and gypsum fiber boards.
Silres BS 16 is used with Lightweight materials such as foam concrete.

Silres BS 16 is used for Insulating materials.
Silres BS 16 is used for waterproofing natural stones such as marble, granite, travertine.
Instructions for using Silres BS 16 waterproofing chemicals:

Silres BS 16 must then be stirred thoroughly before use.
Silres BS 16 is used to impregnate the surface of building materials when a suitable means to achieve a uniform, complete coating such as dipping, spraying, rolling….
Do not apply the solution twice.

Silres BS 16 is not recommended for treating the external walls of buildings because uneven construction will cause white spots.
Silres BS 16 is a concentrated solution and must be diluted with water before use.
Normal tap water can be used.

For best results, mix Silres BS 16 waterproofing agent into water and stir well.
For each different type of material, we recommend doing preliminary tests to get the optimal dilution ratio.
Mixing ratio: depending on surface porosity: 1:10 – 1:15

Silres BS 16 must be stored in its original tightly closed container.
Silres BS 16 should be stored in stainless steel drums, plastic or glass containers.
Tin, aluminium, galvanized or lacquered containers are not suitable.

If crystals form due to storage temperatures being too low, they will decompose again when the product is allowed to warm up.
Silres BS 16 is an aqueous solution of potassium methyl siliconate and is used in diluted form for the impregnation of mineral construction materials to make them water-repellent.

Silres BS 16 can be used as a hydrophobic treatment for porous materials such as stone, bricks, ceramics, cement mortar, perlite, gypsum and fiber gypsum board, which can produce a waterproof effect inside and on the surface of the processed material, reduce water absorption, and maintain the material at the same time Original color, breathability and appearance characteristics.

Silres BS 16 is a solution of Potassium Methyl Siliconate and is used in diluted form for waterproofing natural building materials.
Silres BS 16 develops water-repellent properties on the surface of the material by reacting with CO2 gas in the air.
Similar to all forms of silicone, Silres BS 16 may leave a white deposit on the surface of coloured building materials.

Silres BS 16 is an aqueous solution of potassium methyl siliconate and is used in diluted form for impregnation mineral construction materials to make them water-repellent.
Silres BS 16 develops its water-repellent properties by reacting with atmospheric carbon dioxide (CO 2 ).

The active substance of Silres BS 16 formed from the silicone masonry water repellent is polymethylsilicic acid.
Silres BS 16 is an aqueous solution of potassium methyl siliconate used in diluted form for the hydrophobic impregnation of mineral construction materials, making them water-repellent.

The water-repellent properties of Silres BS 16 are developed through its reaction with atmospheric carbon dioxide (CO2), forming polymethylsilicic acid.
However, it should be noted that, like all siliconates, Silres BS 16 may cause a white deposit on the surface of colored construction materials if used outside the recommended application guidelines.

-Silres BS 16 is used for waterproofing:
Products made from fired clay immediately after they are completed: roofing tiles, wall tiles, floor tiles, ceramic vases.
Concrete.
Plaster.
Stone or lightweight material such as porous concrete.
Insulating materials.

-Dilution uses of Silres BS 16:
Silres BS 16 is supplied as a concentrate and is diluted with water before use.
Ordinary tap water may be used.
It is best to add the Silres BS 16 masonry water repellent to the water under vigorous stirring.
Preliminary tests are always required for the determination of the correct dilution ratio.

-Thermal insulation materials use of Silres BS 16:
Silres BS 16 is an aqueous solution of potassium methyl siliconate used in diluted form for waterproofing by penetrating into building materials.
Silres BS 16 develops its waterproofing properties by reaction with atmospheric carbon dioxide (CO 2 ).

The active ingredient is formed from the waterproofing of the silicone base, polymethyl silicic.
However, like all other siliconates, Silres BS 16 can cause white deposits on the surface of materials, or if not used according to the instructions for use.

-Processing uses of Silres BS 16:
Diluted with water, Silres BS 16 is used for hydrophobic impregnating the surface of masonry materials when a suitable means of achieving an adequate, uniform coating, e. g. dipping, is available.
Twofold application is not recommended.
Silres BS 16 is not recommended for treating the outside walls of buildings since the necessarily uneven application will give rise to white spots.

-Silres BS16 Waterproofing uses:
Products made from fired clay immediately after being fired: roof tiles, wall tiles, floor tiles, ceramic vases and pots, etc.
Plasterboard and gypsum ceiling panels.
Foam concrete uses lightweight aggregate.
Insulating materials.
Natural stone: Marble, Limestone, Sandstone, etc.

-Application of Silres BS 16:
Imparting water repellency to:
Low-fired clay products immediately after they have been made: e. g. roof tiles, facing bricks, floor tiles, flower pots.
Aerated concrete.
Gypsum and gypsum-based fiber boards.
Light fillers, such as perlite, vermiculites and aerated concrete granules.
Insulating materials.

-Silres BS 16 is used invisible waterproofing for the following materials:
% Products made from fired clay immediately after being fired: roof tiles, wall tiles, floor tiles, ceramic vases and pots...
% Hollow concrete.
% Gypsum and gypsum ceiling panels
% Foamed concrete using lightweight aggregate
% Insulating materials
% Natural stone: Marble, Limestone, Sandstone…

-Imparting water repellency to:
% Low-fired clay products immediately after they have been made: eg, roof tiles, facing bricks, floor tiles, flower pots
% Aerated concrete
% Gypsum and gypsum-based plasterboards
% Light fillers, such as perlite, vermiculites and aerated concrete granules
% Insulating materials
% Natural stone: Marble, Limestone, Sanstone….

INSTRUCTIONS FOR USE of SILRES BS 16:
Silres BS 16 is after dilution with water, is allowed to penetrate into the surface of building materials by spraying, dipping or brushing to form a uniform waterproof coating.

Dilution:
Silres BS 16 is supplied in concentrated form and must be diluted immediately before use.
Normal tap water can be used for dilution.
The best way is to slowly add Silres BS 16 to the water and stir well.

Mixing ratio:
Depending on surface porosity.
Hydrophobizer for mineral building materials

Active substance:
potassium methylsiliconate (aqueous solution)

CHARACTERISTICS of SILRES BS 16:
Silres BS 16 enables the hydrophobization of:
*coarse ceramic products immediately after production, such as: roof tiles, facing bricks, floor tiles, flower pots
*aerated concrete
*Gypsum and gypsum fiberboards
*Lightweight fillers such as perlite, vermiculite, aerated concrete granules

PROPERTIES of SILRES BS 16:
Silres BS 16 imparts water repellency to:
Low-fired clay products immediately after they have been made: e. g. roof tiles, facing bricks, floor tiles, flower pots
Aerated concrete
Gypsum and gypsum-based fiber boards
Light fillers, such as perlite, vermiculites and aerated concrete granules
Insulating materials

FEATURES of SILRES BS 16:
Silres BS 16 is a solution of Potassium methyl Siliconate and is used in diluted form for waterproofing natural building materials.
Silres BS 16 develops water-repellent properties on the surface of the material by reacting with CO 2 gas in the air.
Similar to all forms of silicone, Silres BS 16 can bond a white precipitate to the surface of colored building materials.

PROCESSING of SILRES BS 16:
Diluted with water Silres BS 16 is used for impregnating the surface of masonry materials when a suitable means of achieving an adequate, uniform coating e.g. dipping, is available.
Silres BS 16 is not recommended for treating the outside walls of buildings since the necessarily uneven application will give rise to white spots.

STORAGE of SILRES BS 16:
Silres BS 16 should be stored in iron drums, plastic or glass containers.
Tinplate, aluminium or galvanized or lacquered containers are not suitable.

In the sealed container, Silres BS 16 has a shelf life of at least 12 months, both in its concentrated and diluted form.
Storage temperatures of Silres BS 16 should not drop below – 80 °C.

If crystals form due to too low storage temperatures, these will redissolve when the product is allowed to warm up.
Silres BS 16 must then be stirred thoroughly.

The diluted product should always be stored at a temperature above 0 °C.
The ‘Best use before end’ date of each batch appears on the product label.

If Silres BS 16 is kept beyond the shelf life recommended it is not necessarily unusable, but a quality control should be performed on the properties relevant to the application.

CHARACTERISTICS of SILRES BS 16:
High pH concentrate (alkaline solution) indicates strong reactivity toward mineral substrates.
Reaction product is polymethylsilicic acid, which binds to substrate and imparts hydrophobicity.
Silres BS 16 may cause white deposits / efflorescence on coloured surfaces if application is uneven or misuse (too heavy application) occurs.

INSTRUCTIONS FOR USE of SILRES BS 16:
Silres BS 16 is supplied in concentrated form and diluted with tap water before use.
The approximate degree of dilution is 1:16–1:20, selected experimentally.
It is best to add the concentrate to water with vigorous stirring.

Silres BS 16 is applied by the immersion method or another method that provides a uniform coating.
Double application is not recommended.
Silres BS 16 is not intended for processing external walls because of the risk of white spots.

BENEFITS / PERFORMANCE CHARACTERISTICS of SILRES BS 16:
Silres BS 16 provides water repellency: by forming a hydrophobic layer inside porous mineral substrates, reducing water ingress, weathering, erosion.
Silres BS 16 is water‐dilutable and applicable by typical methods (dipping, spraying) onto mineral surfaces.

Because of the reaction with CO₂ forming insoluble deposit, the treatment is long-lasting (once applied, hydrophobic layer remains) on suitable substrate.
Storage & handling benefits: The aqueous solution of Silres BS 16 is easier to handle (vs solvent‐based hydrophobes) with lower VOCs.

KEY FEATURES of SILRES BS 16:
Silres BS 16 gives water-repellent properties to products made of clay, bricks, tiles, foam concrete, gypsum, light fillers
Silres BS 16 is applicable for insulating materials, building panels and plates
Hydrophobization is achieved due to reaction with CO₂
Silres BS 16 is recommended for preliminary impregnation of mineral materials

PHYSICAL and CHEMICAL PROPERTIES of SILRES BS 16:
Product name: SILRES BS 16 — an aqueous solution of potassium methyl siliconate (water-dilutable “siliconate” for mineral building materials).
CAS number: 31795-24-1 (for potassium methyl siliconate)
EC / EINECS number: 250-807-9
Molecular formula: Approx CH₅K₃O₃Si (for potassium methyl silanetriolate)
Molecular weight: ~ 208.4 g·mol⁻¹ (for the “pure” potassium methyl siliconate)
Appearance: As supplied, a clear to slightly hazy, colourless to slightly yellowish aqueous solution.
Active substance content: Approx. 34 % wt (in typical concentrate) according to one listing.
Solid content / concentration: ~55 % wt (at 150 °C, 1 h for 1 g) in one spec.

Density: ~1.4 g·cm⁻³ at 25 °C, 1013 hPa.
pH: Very high: ~13-14 for the concentrate.
Reaction mechanism: The siliconate reacts with atmospheric CO₂ to form polymethylsilicic acid and deposit on substrate surfaces.
Conditions: Intended for hydrophobic impregnation of substrates like low-fired clay, aerated concrete, gypsum boards, fillers, insulation.
Color: Colorless solution.
Solid content 1g/1h/150°C: 55%.
Active substance content: approx. 34 wt. %.
K20 content: approx. 20 wt. %.
Solvent: Water.

Density at 25°C, at 1013 hPa: 1.4 g/cm³.
pH value at 20°C: 13-14.
Appearance: Clear to slightly cloudy; colorless to pale yellow liquid
Form: Aqueous solution
Density: ~ 1.40 g/cm³ at 25 °C
pH: Strongly alkaline (approx. 13–14)
Solids Content: ~ 55 wt% (150 °C, 1 h)
Viscosity: Low to medium viscosity, water-like behavior
Flash Point: Non-flammable (water-based product)
Solubility: Completely miscible with water

Odor: Slight, characteristic
Storage Conditions:
Store tightly sealed in plastic, stainless steel, or glass containers
Do not store in aluminum or tin containers
Protect from freezing; crystallization may occur at low temperatures
If crystallized, warm and mix thoroughly before use
Chemical Properties
Chemical Nature / Active Substance:
Potassium methyl siliconate (water-soluble silicone-based hydrophobizing agent)

Active Ingredient Content: ~ 34 wt% potassium methyl siliconate
K₂O Equivalent: ~ 20 wt% (indicates alkalinity strength)
Reactivity:
Reacts with atmospheric CO₂ during curing
Converts to hydrophobic polysiloxane network within mineral substrates
Stability: Stable under normal storage conditions; avoid contact with acids
Alkalinity: Highly alkaline; may react with acidic materials
Curing Mechanism: Carbonation reaction producing hydrophobic properties in concrete, mineral plasters, bricks, stones

FIRST AID MEASURES of SILRES BS 16:
-Description of first-aid measures
*General advice:
Show this material safety data sheet to the doctor in attendance.
*If inhaled:
After inhalation:
Fresh air.
*In case of skin contact:
Take off immediately all contaminated clothing.
Rinse skin with
water/ shower.
*In case of eye contact:
After eye contact:
Rinse out with plenty of water.
Call in ophthalmologist.
Remove contact lenses.
*If swallowed:
After swallowing:
Immediately make victim drink water (two glasses at most).
Consult a physician.
-Indication of any immediate medical attention and special treatment needed.
No data available

ACCIDENTAL RELEASE MEASURES of SILRES BS 16:
-Environmental precautions:
Do not let product enter drains.
-Methods and materials for containment and cleaning up:
Cover drains.
Collect, bind, and pump off spills.
Observe possible material restrictions.
Take up dry.
Dispose of properly.
Clean up affected area.

FIRE FIGHTING MEASURES of SILRES BS 16:
-Extinguishing media:
*Suitable extinguishing media:
Carbon dioxide (CO2)
Foam
Dry powder
*Unsuitable extinguishing media:
For this substance/mixture no limitations of extinguishing agents are given.
-Further information:
Prevent fire extinguishing water from contaminating surface water or the ground water system.

EXPOSURE CONTROLS/PERSONAL PROTECTION of SILRES BS 16:
-Control parameters:
--Ingredients with workplace control parameters:
-Exposure controls:
--Personal protective equipment:
*Eye/face protection:
Use equipment for eye protection.
Safety glasses
*Body Protection:
protective clothing
*Respiratory protection:
Recommended Filter type: Filter A
-Control of environmental exposure:
Do not let product enter drains.

HANDLING and STORAGE of SILRES BS 16:
-Conditions for safe storage, including any incompatibilities:
*Storage conditions:
Tightly closed.
Dry.

STABILITY and REACTIVITY of SILRES BS 16:
-Chemical stability:
The product is chemically stable under standard ambient conditions (room temperature).
-Possibility of hazardous reactions:
No data available