SILRES BS 45 (silres bs 45, Polysiloxanes) SILRES BS 45 (silres bs 45, Polysiloxanes) is a solventfree, water-thinnable emulsion of a polysiloxane modified with functional silicone resin. Technical data of SILRES BS 45 (silres bs 45, Polysiloxanes) General Characteristics of SILRES BS 45 (silres bs 45, Polysiloxanes) Property Condition Value Method of SILRES BS 45 (silres bs 45, Polysiloxanes) Solids content - approx. 50 % - Appearance - milky, white ASTM D 2240 Density 20 °C approx. 1 g/cm³ DIN 51757 pH 23 °C approx. 6 - 7 Indicator strips Applications of SILRES BS 45 (silres bs 45, Polysiloxanes) • Silicone Resin & Silicate Plasters • Renders & Plasters • Coatings & Paints • Additives for Plasters and Renders • Exterior Paints • Top Coats & Paints Application details of SILRES BS 45 (silres bs 45, Polysiloxanes) SILRES BS 45 (silres bs 45, Polysiloxanes) may be added undiluted to aqueous masonry coatings and primers either during or after manufacture. We recommend adding 1 - 3 wt% to masonry coatings. SILRES BS 45 (silres bs 45, Polysiloxanes) is an additive used in the manufacture of aqueous masonry coatings and aqueous primers to enhance water repellency and water resistance. It also improves the processability and antiblocking characteristics of the aqueous coatings. Typical application fields are whitewash emulsions, silicate emulsion paints and plasters, highly filled emulsion coatings and silicone resin emulsion paints and plasters. Packaging and storage of SILRES BS 45 (silres bs 45, Polysiloxanes) Storage of SILRES BS 45 (silres bs 45, Polysiloxanes) The 'Best use before end' date of each batch is shown on the product label. Storage beyond the date specified on the label does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons. Product description of SILRES BS 45 (silres bs 45, Polysiloxanes) SILRES BS 45 (silres bs 45, Polysiloxanes) is a solventfree, water-thinnable emulsion of a polysiloxane modified with functional silicone resin. Application of SILRES BS 45 (silres bs 45, Polysiloxanes) SILRES BS 45 (silres bs 45, Polysiloxanes) is an additive used in the manufacture of aqueous masonry coatings and aqueous primers to enhance water repellency and water resistance. SILRES BS 45 (silres bs 45, Polysiloxanes) also improves the processability and antiblocking characteristics of the aqueous coatings. Typical application fields are whitewash emulsions, silicate emulsion paints and plasters, highly filled emulsion coatings and silicone resin emulsion paints and plasters. Processing of SILRES BS 45 (silres bs 45, Polysiloxanes) SILRES BS 45 (silres bs 45, Polysiloxanes) may be added undiluted to aqueous masonry coatings and primers either during or after manufacture. We recommend adding 1 - 3 wt% to masonry coatings. Product description of SILRES BS 45 (silres bs 45, Polysiloxanes) SILRES BS 45 (silres bs 45, Polysiloxanes) is a water-dilutable solventless emulsion of a silicone resin used as a binder in the production of silicone resin emulsion paints and plasters. Application of SILRES BS 45 (silres bs 45, Polysiloxanes) SILRES BS 45 (silres bs 45, Polysiloxanes) is employed as the main binder in silicone resin emulsion paints and plaster. If formulated properly, the products made with it characterized by high permeability to water vapor and CO₂, low water absorption, low soiling tendency, a mineral appearance and long life. An excellent beading effect is also achieved if SILRES BS 1306 is added. Facades must be primed before painting for optimal protection. Storage of SILRES BS 45 (silres bs 45, Polysiloxanes) The containers must be protected against sunlight. Stir well before taking emulsion from drums. The "Best use before end" date of each batch is shown on the product label. Storage beyond the date specified on the label does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons. Product description SILRES BS 45 (silres bs 45, Polysiloxanes) is a solventless silicone concentrate that is based on a mixture of silane and siloxane. SILRES BS 45 (silres bs 45, Polysiloxanes) is dilutable with organic solvents. Dilute solutions of SILRES BS 45 (silres bs 45, Polysiloxanes) in organic solvents serve as high-quality general-purpose water repellents for impregnating and priming mineral and highly alkaline substrates. Special features of SILRES BS 45 (silres bs 45, Polysiloxanes) - good depth of penetration - high resistance to alkalis - tack-free drying - effective even on damp substrates - rapid development of water repellency After application to the mineral substrate, SILRES BS 45 (silres bs 45, Polysiloxanes) reacts with the atmospheric moisture or pore water in the substrate, thereby generating the active ingredient while liberating alcohol. The active ingredient greatly lowers the water absorbency of the substrate, which nevertheless retains a very high degree of water vapour permeability since neither pores nor capillaries are clogged. Application of SILRES BS 45 (silres bs 45, Polysiloxanes) SILRES BS 45 (silres bs 45, Polysiloxanes) is suitable for imparting water repellency to absorbent, porous, mineral construction materials, e. g.: - brickwork - all kinds of concrete - aerated concrete - sand-lime brickwork - cement fiberboards - mineral plasters - mineral-based natural and artificial stone - mineral paints SILRES BS 45 (silres bs 45, Polysiloxanes) is also suitable as primer for exterior paints.SILRES BS 290 is not suitable for rendering gypsum water repellent. SILRES BS 45 (silres bs 45, Polysiloxanes) is not suitable for rendering gypsum water repellent.windows and other non-absorbent surfaces properly because the product cures so quickly that it will be extremely difficult, if not impossible, to remove after a few hours. Wipe off any splashes on window panes immediately, using a solvent if necessary. For this reason, the figures quoted below are intended as a guide only: windows and other non-absorbent surfaces properly because the product cures so quickly that it will be extremely difficult, if not impossible, to remove after a few hours. Wipe off any splashes on window panes immediately, using a solvent if necessary. For this reason, the figures quoted below are intended as a guide only: Processing of SILRES BS 45 (silres bs 45, Polysiloxanes) Flooding, preferably not under pressure, is the best technique for applying SILRES BS 45 (silres bs 45, Polysiloxanes), which is ready to use after dilution. Apply several coats, wet on wet, until the substrate is saturated. Generally, at least two applications suffice for all substrates.Do not leave long breaks between coats. Apply the next when the substrate has absorbed the previous one and is no longershiny (wet-on-wet working). The substrate must not have damp spots, i. e., it should look dry. The requisite quantity of SILRES BS 45 (silres bs 45, Polysiloxanes) depends on the adsorbency of the substrate. The amount of impregnating agent required for a substrate and the effectiveness of the impregnation should be determined on site by testing a small area of the material to be treated. Dilution of SILRES BS 45 (silres bs 45, Polysiloxanes) The solvents best suited for diluting SILRES BS 45 (silres bs 45, Polysiloxanes) are aliphatic hydrocarbons (e. g. White Spirit 130/175), aromatic hydrocarbons (solvent naphtha, e. g. Shellsol A) or low-odor isoparaffin hydrocarbons. The solvent used should have a boiling range of 140-190°C and an evaporation number of 30-90. If the above-mentioned hydrocarbon solvents are used, SILRES BS 290 should be diluted in a weight ratio of 1:11 to 1:15. Anhydrous alcohols, such as ethanol or 2-propanol, could also be used and are even indispensable whenever contact of the impregnating agent with solvent-sensitive materials (such as expanded polystyrene, bitumen, etc.) cannot be avoided. The alcohol must be completely anhydrous. If alcohol is used as a solvent, a dilution ratio of 1:12pbw is recommended. When impregnating slightly damp substrates, SILRES BS 290 will give better results if diluted with hydrocarbons than with alcohol. Stir vigorously when adding the diluent to SILRES BS 290. Since SILRES BS 290 reacts with humidity, prolonged contact with air must be avoided. The containers must be hermetically sealed. Before applying SILRES BS 45 (silres bs 45, Polysiloxanes), be sure to cover Storage of SILRES BS 45 (silres bs 45, Polysiloxanes) The 'Best use before end' date of each batch is shown on the product label. Storage beyond the date specified on the label does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons. Product description of SILRES BS 45 (silres bs 45, Polysiloxanes) SILRES BS 45 (silres bs 45, Polysiloxanes) is a nonionic, solvent-free, water-dilutable emulsion of a reactive polysiloxane Application of SILRES BS 45 (silres bs 45, Polysiloxanes) SILRES BS 45 (silres bs 45, Polysiloxanes) is used in undiluted form as a hydrophobizing additive for aqueous masonry paints or plasters to increase water repellency, water resistance and water vapour permeability as well as to enhance processability and anti-blocking properties. Suitable for: - silicone resin emulsion paints and - silicone resin emulsion plasters - silicate emulsion paints and plasters - highly-filled emulsion-based coatings - emulsion-modified whitewash - stoppers Paints and plasters modified SILRES BS 45 (silres bs 45, Polysiloxanes) are characterized by an excellent water beading effect. Processing of SILRES BS 45 (silres bs 45, Polysiloxanes) SILRES BS 45 (silres bs 45, Polysiloxanes) can be added in undiluted form to aqueous masonry paints or plasters during or after their production. The addition of 1 to 3 wt.-% is recommended. Storage of SILRES BS 45 (silres bs 45, Polysiloxanes) The 'Best use before end' date of each batch is shown on the product label. Storage beyond the date specified on the label does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons. SILRES BS 1360 is non-ionic, solvent-free, water-dilutable emulsion of a reactive polysiloxane. Acts as a water repellent. SILRES BS 1360 increases water repellency, water resistance and water-vapor permeability as well as enhances processability and anti-blocking properties. In particular, silicate emulsion paints and plasters modified with this additive are characterized by extremely long-lasting and reliable water repellency. The hydrophobizing action is unaffected by long storage of the liquid paint system. SILRES BS 1360 is suitable for silicone resin emulsion paints and silicone resin plasters, highly-filled emulsion-based coatings and emulsion-modified whitewash. Application details of SILRES BS 45 (silres bs 45, Polysiloxanes) SILRES BS 45 (silres bs 45, Polysiloxanes) is applied after compatibility test with the phenolic resin mixture by mixing and spraying or via an additional spraying equipment applied separately – at the same time or shortly before application of the binder. For this purpose SILRES BS 45 (silres bs 45, Polysiloxanes) can be diluted with any quantity of water. Based on the glass or stone fiber mass the addition ratio varies between 0,05 and 0,2 weight % for stone wool and 0,1 and 0,3 weight % (always based on the weight of the dried final product) for glass wool. The quantity of SILRES BS 45 (silres bs 45, Polysiloxanes) to be applied also depends on the desired water repellency of the end product given. Individual tests must always be conducted in order to define the necessary quantities. To impart water repellency to expanded perlite or similar porous materials, SILRES BS 45 (silres bs 45, Polysiloxanes) is applied by spraying as well. 0,2 to 0,4 % by weight SILRES BS 45 (silres bs 45, Polysiloxanes) are recommended as a dosage rate for perlite, 0 ,1 to 0,2 % for expanded clay aggregates. It can be sprayed onto the warm expanded material in order to avoid an additional drying process. Prolonged heating of the siliconized material must however be avoided. Guide formulation for laboratory tests to make perlite water-repellent (no guarantee can be given due to substrate and process variations): Mix 0,80 g SILRES BS 45 (silres bs 45, Polysiloxanes) with 400 g of deionized water. Thoroughly mix or spray 200 g of perlite with this impregnating solution in a mixer until the liquid has been completely absorbed. Fill the moist material into a large dish and dry in a drying oven at 50°C for seven days. Fill the impregnated perlite into fine-meshed nylon sacks and immerse in deionized water. The sacks must be covered by 5 cm of water. Weigh the samples after gentle centrifuging (to remove adherent water) at fixed intervals. The results show that the perlite absorbs about 5 % of its dry weight in water after one day. Untreated perlite absorbs far more than 100 % of its dry weight in water in the same period. The test for water repellency according to the standard ASTM 303-77 is recommended. SILRES BS 45 (silres bs 45, Polysiloxanes) has been developed and optimized to be compatible with phenolic resin binders and tolerates without surplus of ammonia varying processing and formulating conditions. It is compatible and can be mixed with most phenolic resins, no side reactions or precipitations are observed. Based on the large variety of phenolic resins used plus further specific additives, however, a specific compatibility test in each plant is necessary. As the shelf life of the various mixtures depends largely on the formulation e. g. on the dilution of the emulsion it is recommended to apply the binder mixture without delay. SILRES BS 45 (silres bs 45, Polysiloxanes) is a very efficient aqueous water-dilutable emulsion of a reactive polydimethylsiloxane. SILRES BS 45 (silres bs 45, Polysiloxanes) is used to impart water repellency to glass wool (fiber glass) or stone wool bound with phenolic resin. It can also be used for expanded minerals such as perlite or vermiculite, or expanded clay aggregates. Properties of SILRES BS 45 (silres bs 45, Polysiloxanes) SILRES BS 45 (silres bs 45, Polysiloxanes) has an ideal viscosity for the feeding and dilution process during application. Once sprayed onto the substrate, in comparison to other emulsions of reactive polydimethylsiloxanes SILRES BS 45 (silres bs 45, Polysiloxanes) shows an especially high thermal stability in the manufacturing process of the thermal insulating material. By enhancing coatings performance, opens up new possibilities for you. has been a global technology leader in silicone products for many years. An ambitious partner for the paints and coatings industry, we develop and produce SILRES BS 45 (silres bs 45, Polysiloxanes) brand liquid resins, powder coatings resins and intermediates which are designed to selectively optimize coating systems so that they meet the highest requirements. Broaden the Property Spectrum of Your Coating! SILRES BS 45 (silres bs 45, Polysiloxanes) resins and intermediates can broaden the property spectrum of your coatings, open up new fields and take existing applications to a whole new level of performance. Whether serving as sole silicone binder or being used for chemical or cold-blend modification of organic binders, such as polyesters, alkyds and epoxies, SILRES BS 45 (silres bs 45, Polysiloxanes) products can impart specific film properties. This ability comes from their excellent resistance to high temperatures, UV radiation and moisture. Profit from Global Presence and Local Customer Support SILRES BS 45 (silres bs 45, Polysiloxanes) products for industrial coatings are available in the same high standard anywhere in the world. We have also set up technical centers across the globe to offer you comprehensive support with applications and selection of SILRES BS 45 (silres bs 45, Polysiloxanes) products for industrial coatings Heat-resistant coatings must provide continuous service at temperatures between 200 °C and 650 °C, with little discoloration and loss of adhesion. This imposes extreme demands on the binder and the formulation. SILRES BS 45 (silres bs 45, Polysiloxanes) silicone resins have proven particularly effective in long-term applications because of their very high inorganic content. SILRES BS 45 (silres bs 45, Polysiloxanes): A Broad Portfolio Chemically, there are three types of silicone resin to choose from: • Pure phenyl polysiloxane • Pure methyl polysiloxane • Mixed phenyl/methyl polysiloxane For Excellent Heat Resistance Phenyl groups are the most thermally stable organic substituents. In highly pigmented paint systems, they provide heat resistance up to 650 °C. Phenyl silicone resins are particularly compatible with organic resins. And More Interesting Properties Methyl groups are the second most stable organic substituents. In coatings with a low pigment content, they confer heat resistance up to 200 °C. A high content of methyl groups in heat-resistant coatings increases their hardness, water repellency and non-stick properties. Methyl resins are ideal for formulating aluminum-pigmented paints that will resist temperatures up to 650 °C. Suitable For Many Coating Systems has innovative and established SILRES BS 45 (silres bs 45, Polysiloxanes) binder alternatives for: • Solvent-borne systems and systems with little or no solvent content • Water-borne systems • Powder-coating systems •Room-temperature-curable systems Temperature [° C] Aluminum FeMn oxide Mica, Miox Zinc dust Ti02/color Clear Heat Resistance As a Function of Pigment/Filler Type The chart illustrates how the maximum heat resistance of a coating varies with the type of pigment/filler. Benefits of SILRES BS 45 (silres bs 45, Polysiloxanes) Binders in Heat-Resistant Coatings • Heat resistance up to 650 °C, combined with perfect adhesion • Durability under extreme temperature variations • Long-lasting corrosion protection • UV and weathering resistance • Low-VOC formulations possible Adjust the Profile to Your Demands! In addition to the binder’s heat resistance, versatile pigmentation is crucial for formulating heat-resistant paints. The right mix of SILRES BS 45 (silres bs 45, Polysiloxanes) silicone resins, heatresistant pigments and fillers will meet most demands. Ideal for Many Applications In conclusion, SILRES BS 45 (silres bs 45, Polysiloxanes) silicone resins are the right binders for any structural element that might get hot when installed between other system parts of: • Vehicles (e.g. exhaust systems, mufflers, engine parts, brakes) •Industrial plant components (e.g. flues, stacks, furnaces, heat exchangers) • Household appliances (wood-burning ovens, stoves and stovepipes, BBQs, pots and pans) Compatible With Many Organic Resins SILRES BS 45 (silres bs 45, Polysiloxanes) intermediates can be reacted in almost any proportions with a wide variety of organic resins. Typical examples are alkyd, polyester, epoxy and acrylic resins. No Undesired Side Effects Modification of organic resins and coatings with SILRES BS 45 (silres bs 45, Polysiloxanes) intermediates leaves the following product properties unchanged: • Hardness • Baking rate • Mechanical resistance • Pigment compatibility • Adhesion Improved Heat Resistance The more SILRES BS 45 (silres bs 45, Polysiloxanes) intermediate added, the more heat resistant the coating becomes. Coatings containing 50% or more intermediate will resist continuous exposure to temperatures above 250 °C – for up to several hundred hours. Effect of Film Thickness For maximum adhesion and resistance to temperature changes, the SILRES BS 45 (silres bs 45, Polysiloxanes) silicone resins must have the right film thickness. Film thicknesses between 10 and 30 µm (for powder coatings: 30 – 70 µm) after baking ensure that the coatings have the maximum lifetime. Note: thicker films may experience adhesion loss. Physical Drying Due to evaporation of solvent (in liquid paints), paint begins to dry as soon as it is applied. The rate of drying depends on the solvent type, spray-booth temperature and air speed in the baking oven. It is vital that the dryer air have a low particle count and be free of oil. Most SILRES BS 45 (silres bs 45, Polysiloxanes) silicone resins ensure tack-free drying at room temperature. SILRES BS 1360 is non-ionic, solvent-free, water-dilutable emulsion of a reactive polysiloxane. Acts as a water repellent. SILRES BS 1360 increases water repellency, water resistance and water-vapor permeability as well as enhances processability and anti-blocking properties. In particular, silicate emulsion paints and plasters modified with this additive are characterized by extremely long-lasting and reliable water repellency. The hydrophobizing action is unaffected by long storage of the liquid paint system. SILRES BS 1360 is suitable for silicone resin emulsion paints and silicone resin plasters, highly-filled emulsion-based coatings and emulsion-modified whitewash. Application details of SILRES BS 45 (silres bs 45, Polysiloxanes) SILRES BS 45 (silres bs 45, Polysiloxanes) is applied after compatibility test with the phenolic resin mixture by mixing and spraying or via an additional spraying equipment applied separately – at the same time or shortly before application of the binder. For this purpose SILRES BS 45 (silres bs 45, Polysiloxanes) can be diluted with any quantity of water. Based on the glass or stone fiber mass the addition ratio varies between 0,05 and 0,2 weight % for stone wool and 0,1 and 0,3 weight % (always based on the weight of the dried final product) for glass wool. The quantity of SILRES BS 45 (silres bs 45, Polysiloxanes) to be applied also depends on the desired water repellency of the end product given. Individual tests must always be conducted in order to define the necessary quantities. To impart water repellency to expanded perlite or similar porous materials, SILRES BS 45 (silres bs 45, Polysiloxanes) is applied by spraying as well. 0,2 to 0,4 % by weight SILRES BS 45 (silres bs 45, Polysiloxanes) are recommended as a dosage rate for perlite, 0 ,1 to 0,2 % for expanded clay aggregates. It can be sprayed onto the warm expanded material in order to avoid an additional drying process. Prolonged heating of the siliconized material must however be avoided. Guide formulation for laboratory tests to make perlite water-repellent (no guarantee can be given due to substrate and process variations): Mix 0,80 g SILRES BS 45 (silres bs 45, Polysiloxanes) with 400 g of deionized water. Thoroughly mix or spray 200 g of perlite with this impregnating solution in a mixer until the liquid has been completely absorbed. Fill the moist material into a large dish and dry in a drying oven at 50°C for seven days. Fill the impregnated perlite into fine-meshed nylon sacks and immerse in deionized water. The sacks must be covered by 5 cm of water. Weigh the samples after gentle centrifuging (to remove adherent water) at fixed intervals. The results show that the perlite absorbs about 5 % of its dry weight in water after one day. Untreated perlite absorbs far more than 100 % of its dry weight in water in the same period. The test for water repellency according to the standard ASTM 303-77 is recommended. SILRES BS 45 (silres bs 45, Polysiloxanes) has been developed and optimized to be compatible with phenolic resin binders and tolerates without surplus of ammonia varying processing and formulating conditions. It is compatible and can be mixed with most phenolic resins, no side reactions or precipitations are observed. Based on the large variety of phenolic resins used plus further specific additives, however, a specific compatibility test in each plant is necessary. As the shelf life of the various mixtures depends largely on the formulation e. g. on the dilution of the emulsion it is recommended to apply the binder mixture without delay. SILRES BS 45 (silres bs 45, Polysiloxanes) is a very efficient aqueous water-dilutable emulsion of a reactive polydimethylsiloxane. SILRES BS 45 (silres bs 45, Polysiloxanes) is used to impart water repellency to glass wool (fiber glass) or stone wool bound with phenolic resin. It can also be used for expanded minerals such as perlite or vermiculite, or expanded clay aggregates. Properties of SILRES BS 45 (silres bs 45, Polysiloxanes) SILRES BS 45 (silres bs 45, Polysiloxanes) has an ideal viscosity for the feeding and dilution process during application. Once sprayed onto the substrate, in comparison to other emulsions of reactive polydimethylsiloxanes SILRES BS 45 (silres bs 45, Polysiloxanes) shows an especially high thermal stability in the manufacturing process of the thermal insulating material. By enhancing coatings performance, opens up new possibilities for you. has been a global technology leader in silicone products for many years. An ambitious partner for the paints and coatings industry, we develop and produce SILRES BS 45 (silres bs 45, Polysiloxanes) brand liquid resins, powder coatings resins and intermediates which are designed to selectively optimize coating systems so that they meet the highest requirements. Broaden the Property Spectrum of Your Coating! SILRES BS 45 (silres bs 45, Polysiloxanes) resins and intermediates can broaden the property spectrum of your coatings, open up new fields and take existing applications to a whole new level of performance. Whether serving as sole silicone binder or being used for chemical or cold-blend modification of organic binders, such as polyesters, alkyds and epoxies, SILRES BS 45 (silres bs 45, Polysiloxanes) products can impart specific film properties. This ability comes from their excellent resistance to high temperatures, UV radiation and moisture.