Polycoat bitumen emulsion paint. The finished. Polycoat bitumen emulsion paint

 
 The finishedPolycoat bitumen emulsion paint  It can be applied as a waterproof membrane, sealant, protective coating or adhesive

5) Mixed emulsions: these are systems consisting of two different disperse droplets that do not mix in a continuous. Odourless and produces no fumes. NURPROOF (Elastomeric SBS Modified Bitumen Coating) is an One-component SBS modified bituminous liquid waterproofing membrane, ready to use, highly elastic, to waterproof foundations and floors and for the restoration of bituminous and slated membranes. Add to quote. The primer may be applied by a brush, roller or airless spray. Because PU Paint is pigment Coating, the applicator uses a white colour sealer for the base coat. 1. Resists the attack of salts like chlorides and sulphates that are present in the soil. Can be used to adhere roll roofing/modified bitumen cap sheets when making repairs. Polycoat is an emulsified thixotropic bitumen protective coating. Polycoat WB. The coating is dark brown in color and dries to a bl ack flexible prot ective film. J | March 31, 2020. SBS modified gellified bitumen emulsion Polycoat RBE 1000 is an emulsified bituminous coating modified with high content of Styrene Butadiene Styrene rubber,. Polycoat RBE conforms to the. Asbestos free, odorless. Since our. PROPERTIES. A bituminous coating is regarded as one of the least expensive ways to provide cathodic protection to pipes. 5 application of bond coats and 6. Typically, asphalt coating involves a process that uses an asphalt emulsion as the coating. It should not be applied in rainy weather, or at temperatures below +5°C. This type of mixture, which is highly sustainable owing to the use of a high percentage of waste, was made with reclaimed asphalt pavement, biomass bottom ash, water, and bitumen. Emulsion Bitumen (CRS, CMS, CSS) Oxidized Bitumen (75/30, 85/25, 85/40, 95/25, 105/35, 115/15). DescriPtiON Polycoat is an emulsified thixotropic bitumen protective coating. DESCRIPTION Polycoat RBE 1000 is an emulsified bituminous coating modified with high content of Styrene Butadiene Styrene rubber, which dries to form a tough and seamless,. Bitutape 150 PVC 5. Bitumen_Emulsion: It is in liquid form that is mostly composed of Bitumen in an aqueous medium, dispensed by some appropriate stabilizing agents. Bitumen emulsion paint. After the seams are covered, switch to your paint roller and apply the emulsion to the rest of the wall. Bituminous Black Paints. Our Emulsion Bitumen is made up of colloidal dispersions of bitumen globules, water, and one or more anionic or cationic emulsifying agents. The coating dries to form a black flexible protective film. 1. The coating dries to form a black flexible protective film. Crack sealing is a cost-effective method to treat all types of cracks greater than. As one of the alternatives, two types of two-component epoxy. Cracks shall be repaired with approved repairing material. 5L. 40 per L. 3. Bituboard 2. 12 months from date of production if stored properly in original unopened packing. Polycoat RBE conforms to the requirement of ASTMD 1227 - Type III, class 1. Crown Matt Emulsion Paint - Duck Egg - 2. 3. 80. The finished film forms a barrier to water and vapor transmission. IATA PROPER SHIPPING NAME: UN 1263, Paint, Class 3, PG III, Flammable Liquid. There are no specific acute or chronic eco-toxicity data for the product. Work Procedure. Our representative will contact you to confirm your order and discuss further details and delivery options. Polycoat RBE 10 is an emulsified rubber modified bitumen coating, which dries to form a tough, seamless, flexible vapor proof protective coating. Polycoat is an emulsified thixotropic bitumen protective coating. Uses. Bitumen Emulsion (#HS-27150), Materials used to produce paint (including Petroleum, Water and Additives), new goods: 100%: Thailand: Vietnam:. We don’t require any credit or debit cards. Polycoat RBE 1000 is an emulsified bituminous coating. Such molecules are elongated, making movement difficult. You must apply 1-2 coats for low-traffic surfaces and 3-4 coats for high-traffic surfaces. The primer can be applied to damp or freshly cast concrete surfaces also. The coating dries to form a black flexible protective film. It is made of asphalt combined with polymerized rubber or plastic, then reinforced with fiberglass to create a rugged-yet-flexible waterproof membrane. Polycoat Bitumen Based Emulsion Paint. The first drying stage of bitumen emulsions and their emulsifier solutions are shown in Figure 8. Adheres to concrete, metal, wood, cork, etc. Box 31320 Dubai - UAE SODAMCO KSA: Bin Abdul Aziz Str. 8% by weight of mixture after the emulsion was added. This negates the coatings effectiveness as a protection barrier. 5L. To prep surfaces, Bitumen and Flashing Primer provides an. The finished film forms a tough barrier to vapor transmission. ORIGINAL PRODUCT FREE IL POLYCOAT BITUMEN EMULSION . contents of the container thoroughly prior toby diluting the same bitumen emulsion with 20% water. After having mixed with water with a ratio of approximately 20%, it is applied with a bitumen brush, roller, or pistol. Resists the attack of salts like chlorides and sulphates that are present in the soil. Add to wishlist. Our bitumen range includes paints and primers suited to most common building surfaces and offering effective waterproofing. Add to Quote. Bitumen Paint Containing Fibre Reinforcement. ShaliKote® T-10 / ShaliKote® T-10A is water based bituminous emulsion with finely divided bitumen dispersed in water and is ready for application on wet surfaces. 1. Carcinogenicity: There is no evidence that bitumen is carcinogenic to humans. Brand: Henkel Packing: 140 kg drm . Bitumen Emulsion K1-60 is a rapid setting cationic bitumen emulsion is an emulsified asphalt containing minimum 57% bitumen. That is why we add an emulsifier (a surface active agent) with water before adding bitumen. Sajith 054 3220671. The finished film forms a tough barrier to vapor transmission. A ready to use, one component bituminous emulsion containing rubber, for the protection and damp proofing of concrete surfaces subject to attack from mild soil acids and salty water. Quick setting K140 will speed up the operation and give exceptional adherence even in damp conditions. Resists the attack of salts like sulfates and chlorides that are available in the soil Simple to apply Cold applied Sticks to metal concrete wood and cork Can be applied in close or. Fiber Reinforced Bitumen Paint POLYCOAT FBR is a high build bitumen emulsion based protective coating, manufactured to comply with ASTM D 1227 Type 11, Class 1. Adocoat is used to provide a flexible waterproof. It is a medium viscosity emulsion used mainly for tack coating in normal overlay and patching work. It provides excellent resistance to the aggressive action of chlorides, sulphates and other moisture borne contaminants on substrates. +966 13 808 4061 / 62. However, the emulsion is more expensive than the paints. Nevertheless, other than paint, there is also an antimicrobial coating imbibed with water-based solvents and. DESCRIPTION Polycoat RBE is an emulsified rubber modified bitumen coating, which dries to form a tough, seamless, flexible vapor proof protective coating. Emulsion paint is a to-go-to choice for most paint contractors because it’s alkali resistant. SBS modified bitumen emulsion Polycoat RBE 15 is an emulsified bituminous coating modified with 10% Styrene Butadiene Styrene Rubber, which dries to form a tough and seamless, flexible water and vapor proof. 1. ₵ 820. Effect of Emulsifier on the Drying Behaviour of Bitumen Emulsion. Do not apply ˜dry RBE-L to external areas in wet weather or when rain is expected in the coming 48 hours. Add what you want to buy into the cart and fill in your contact details. Single component, easy to apply. 4. Find here the Technical Data Sheet (TDS) of our products. Bitustick Self Adhesive 4. It is designed for use underground, internal and immersed areas. Create profitable strategy to export Bitumen emulsion and HSN Code 27150000 from India with Top Bitumen emulsion and HSN Code 27150000 exporting importing countries, Top Bitumen emulsion and HSN Code 27150000 importers & exporters based on 19 export shipment records till Sep - 23 with Ph, Email & Linkedin. The coating cures to form a rubber-like elastomeric waterproof membrane and may be applied over many substrates, including asphalt, bitumen and concrete. No need to go around searching for high quality bituminous materials as we got everything under one roof. Whether you’re looking to protect commercial or residential buildings, steelworks or ironworks at scale, or simply proof your roof, wall, or water tank – the Shell Flintkote product range has a product for. Home / Bitumen / Polycoat Bitumen Based Emulsion Paint. Generally, a tack coat is a thin layer of asphalt emulsion or liquid. Polycoat RBE 10 conforms to the requirement of ASTMD 1227 Type lll, class 1 FIEldS oF aPPlICaTIoN Can be used for a wide variety of applications, which includes the following:Polycoat Bitumen Based Emulsion Paint Price(AED/Pc)/: 45. We don’t require any credit or debit cards. Item Code: 520900100018 Category: Bitumen Coating. 2. View all: Bostik Specialist Paints. Stir thoroughly prior to application. L. SBS modified bitumen emulsion Emulsified bituminous coating which dries to form a tough and seamless, flexible water and. Resists the attack of salts like chlorides and sulphates that are present in the soil; Easy to apply; Cold applied ADDRESS: Sin el Fil, Jissir el Bacha, Center 1433 – 6th Floor, Hanna Assaker Street, Beirut, Lebanon; PHONE: (+961) 1 49 98 78 – (+961) 70 22 86 65 – (+961) 76 364 264 DESCRIPTION: Rubberized bitumen emulsion SUPPLIER / MANUFACTURER: SODAMCO Qatar: Rayan Road Al Musheireb, P. Depending on its exact composition it can be a sticky, black liquid or an apparently solid mass that. The vast majority of bitumen application, approximately 85 %, is in road construction. Bitumen emulsions are usually dispersions of minute droplets of bitumen in water and are examples of oil-in-water emulsions. The coating dries to form a black flexible protective film. Scribd is the world's largest social reading and publishing site. Generally speaking, the amount of bitumen in the bitumen emulsion is 55 to 65%, the amount of water 35 to 45. Bitumen Emulsion for Damproofing TBE2. 34. Hardened Home / Bitumen / Polycoat RBE (Rubberized bitumen Emulsion Paint) Mr. Contact Us. Bitumen emulsion paint. 00. For very dry and porous substrates apply two coats of this primer. You should “cut in” the emulsion around the seams of the wall using a paintbrush. Download PDF. Compare. COvERAGE The coverage varies depending on the type of use: General Use : 2-4 m2/L/coat at required no. 6 out of 5 stars 810. It is a vibrant component of asphalt that is used in construction of roads and infrastructure. Also, the color of the emulsion does not fade with time, and they stay longer compared to the paints. Title: Polycoat Flyer Created Date: 7/4/2019 6:42:32 PM. To determine the exact time taken by a bitumen emulsion paint to dry or cure: Adhesion: ASTM D 3359–09: To. Bituplus Torch on Membrane 3. Our representative will contact you to confirm your order and discuss further details and delivery options. Availability: 4 in stock. Bituminous Waterproofing Liquids Emilkote 1020 -Bituminous Emulsion. Brand: Henkel Packing: 200 ltr drm . Coating can be protected either by a cement sand screed. Do not apply ˜dry RBE-L to external areas in wet weather or when rain is expected in the coming 48 hours. Once it breaks the bitumen breaks out and the color changes to black. Primers should be cured: Surfaces treated with cationic bitumen emulsion primer require at least 24 hours of curing time to let the primer to fully penetrate the base course and release its volatiles. The emulsions may also be polymer modified. In Henkel construction adhesives we are ready to respond to your inquiry. The finished film forms a tough barrier to vapor transmission. Adheres firmly on most building surfaces. Bitumen metal surface coat, preparation of the surface is of great importance and will influence the degree of adhesion obtained along with life of the coating. From R1,799. Product name: BLACK BITUMEN PAINT Product code: 520 1. Priming: The primer coat can be made at the site by diluting the same bitumen emulsion with 15 -20% water. Bitumen emulsion is a liquid product in which bitumen is suspended in a finely divided condition in an aqueous medium and stabilised by suitable material. bitumen adhesive tape (Watertite TS 15)*. High resistance to aggressive chemicals and salts. Our representative will contact you to confirm your order and discuss further details and delivery options. Compare. 0kg Watertite TS 15 10m x 50mm, wt 0. Satisfactory compaction of the. Versatile bituminous primer for porous and non-porous surfaces. Material and Service Cost Price: PU Paint and PU Polish material is easily available in the market but PU Paint’s material is costly than PU Polish. Solvent-Based Bitumen Paint: A durable, waterproof coating with Bitumen dissolved in a solvent, such as white spirit. Will bond to almost any surface. Cromaprufe Bitumen DPM is a cold applied rubberised bitumen emulsion and damp proof paint that dries to provide a tough, black flexible coating that provides a waterproof membrane on concrete and brick foundations, retaining walls and bridge abutments. The finished film forms a tough barrier to vapor transmission. In addition to covering the roof as a primary, paint can. O. Open navigation menu. USAGE –. Easy to apply Cold applied Adheres to concrete, metal, wood, cork, etc. When pure refinery Bitumen is milled in to very small particles and dispersed with hot water and chemical emulsifier becoming bitumen emulsion -SAUDICOAT. 30 minutes Required amount: Substrate highly Substrate absorbent slightly or Polycoat RBE 5 is rubber modified bitumen emulsion coating, which dries to form a tough, seamless, flexible vapor proof protective coating. The emulsifier content in the emulsifier solution is 4. Rubberized Bitumen emulsion paint. NC Wood Paint; PU Wood Paint; PU Texothropic; PU Anit-Bacteria; PU Heat Resistant; Low VOC; Water Base Product Low VOC; Polyester; Acrylic Paint;. HENKEL BITUMEN PAINT 15L. Close suggestions. Bitustick Self Adhesive 4. Fiber reinforced bitumen paint. The finished film forms a tough barrier to. With its 500-micron thickness and coverage area of 10. For larger surfaces, use a paint roller. Urethane roof coating systems are highly reflective and UV stable. Suitable. Crommelin 15L Exterior Grade Brushable Waterproofer (3) $280. Single Ply - Systems. Add to quote. A product called Three in One Foil is a very good covering for damp walls, it has to be stuck to the wall like wallpaper with a special adhesive that. K Approved) Bitucoat - H. Bitumen (UK: / ˈ b ɪ tj ʊ m ɪ n /, US: / b ɪ ˈ tj uː m ə n, b aɪ-/) is an immensely viscous constituent of petroleum. com. Wishlist Compare. 5L. Buy Road bitumen, black bituminous paints, anti corrosive. Typically, asphalt coating involves a process that uses an asphalt emulsion as the coating. 75 (Ex VAT) SKU: Bitumen Emulsion – 5L & 25L Category: Protective Coatings Brand: Masterbuild. Polycoat RBE 1000 200L drums Bituboard 3. Bitumen emulsion is a mixture of water & bitumen. 4) Double and multiple emulsions: these are emulsions-of-emulsions, W/O/W, and O/W/O systems. The coating dries to form a black flexible protective film. EN 12591-Bitumen Penetration Grade 20/30; Bitumen Penetration Grade 30/45; Bitumen Penetration Grade 35/50;. High resistance against water borne chemicals. water and vapor proof protective coating. 2. Bostik Bituminous Black Paint is a solvent-based protective coating for external waterproofing and weather protection of ferrous and non-ferrous metals, concrete, roofing felt, fibre cement, corrugated iron, asphalt and wood. Rust-Oleum® 380 Non-Fibered Asphalt Emulsion Coating is a premium, water-based protective coating for built-up asphalt roofing and concrete foundations. Stir the FRIENDLY. Identification: H8874 DULUX ODOURLESS SUPREME PLUS EMULSION PAINT e-mail address of person responsible for this SDS:SDS. Add what you want to buy into the cart and fill in your contact details. The application of coatings is a critical phase in the construction of asphalt roadways. Availability: In Stock. For very dry and porous substrates apply. Overview. Alfa Coat 5 is suitable for use as waterproof membrane on concrete, asbestos cement, roofing felt. SEALTITE (Flexible Film Polymer Emulsion for use with Cement for Waterproofing / Structural Rehabilitation, Beam / Column Repairs); SEALCOAT (Waterproofing Elastomeric Exterior Membrane Coating: Dual properties of Waterproofing & Aesthetic Exterior Paint); SEALCOAT (Application as an Exterior Coating); KAMICRYL ELASTOFALT (PU. Colbond Multi should be applied at 0. 4%, which is almost equal to the emulsifier concentration in the diluted bitumen emulsion. EYE. 1 ˇ ˘ ˚ + (2! + ˜ / ˚ ˚ ˛B˛ ˇ2’,),(’ B,780(1 J(//,),(’ E08/6,21 polyCoAtRBE­1000is­an­emulsified­bituminous­coating­modified­with­high­content­of­Styrene­Butadiene Rubber,­which­dries­to­form­a­tough­and­seamless,­flexible­water­and­vapor­proof­protective­coating. Easy to apply. 5. Satham – 050 1409388. Brand: Henkel Packing: 200 ltr drm . No products in the cart. Repeated and prolonged exposure to bitumen emulsions can result in skin eye irritations and Bitumen emulsion paint Properties • Anti-fungal • Resists the attack of salts like chlorides and sulphates that are pres ent in the soil • Easy to apply • Cold applied • Adheres to concrete, metal, wood, cork, etc. Odourless and taint-free film. Our representative will contact you to confirm your order and discuss further details and delivery options. Hot Joint Paint and Cold Seal emulsion for road sealing surface joints. CONSUMPTION Description. Shop our range of Bitumen Paint & Waterproofing at warehouse prices from quality brands. The effect is temporary. waterproofing paint. X. Description: Tack coat K1-60 cationic bitumen emulsion is an emulsified asphalt containing minimum 57 % bitumen. Polycoat RBE 5 Bitumen Emulsion. Check your local branch stock. 60/70 Grade Bitumen, For Road Construction, Packaging Type: Drum ₹ 32/ Kg. Polycoat RBE is a latex modified bitumen emulsion. Fast and easy. WP Others. 4. (£5. Classified as a non-hazardous waste and dispose of in accordance with local and national regulations. Contact Us. Solvent-based bituminous coating for permanent protection of concrete surfaces subject to aggressive soils. 80. Adocoat bitumen paint from Adomast is easily applied and gives superb adhesion to a wide range of surfaces. Add to cart. dries to form a tough, seamless, flexible vapor proof protective coating. Let us know your questions and our team of experts will contact you with an answer. Add to wishlist. Do not apply ˜dry RBE-L to external areas in wet weather or when rain is expected in the coming 48 hours. £8. Bitumen Emulsion Breaking. WP Others. emulsion Technical Bulletin Introduction. Bitumen Emulsion – what, why & how. Keeping the variegated requirements of customers in mind, we are indulged in providing Cold Mix Bitumen Emulsion. For excellent results apply on dry surface only. Depending on the dry film thickness required, apply the rubberized bitumen coating @1–4m²/L. 99Inc Vat. Rubberized bitumen emulsion Polycoat RBE 10 is an emulsified rubber modified bitumen coating, which dries to form a tough, seamless, flexible vapor proof protective coating. Polycoat RBE 10 conforms to the requirement of ASTMD 1227 Type. P. Alfa Coat 5 is suitable for use as waterproof membrane on concrete, asbestos cement, roofing felt. However, if the primer after application is left open for more than 24 hours after it becomes dry, clean the surface of any settled dust and apply a fresh coat of the. When the emulsion is applied on the road it breaks down. Liquid Waterproofer suitable for planters, tanking, dam linings, planters and timber. PROPERTIES. Add what you want to buy into the cart and fill in your contact details. OXICOAT RBE 351 is a ready to use cold applied bitumen emulsion modified with rubber, to provide a tough durable and elastic coating. However, it should not be applied on waterlogged or. Application: Tack Coat K1-60 cationic bitumen emulsion can be used at ambient temperature at the spray rate of 0. o For top coat should be blinded with clean dry sharp sand as soon as it applied and after drying the excess sand should be brushed off. Allow the primer to dry before any further coats are applied. Quick view . 25L steels specially modified to fit within the combi bond coat machines. Bitumen. Hey wait, we know that bitumen is a oil product and it cannot be mixed with water. What is an Emulsifying Agent and What Purpose does an Emulsifier have in an Asphalt Emulsion? The emulsifier is a chemical surface-active agent and formed of large molecules. Polycoat RBE is an emulsified rubber modified bitumen coating, which dries to form a tough, seamless, flexible vapor proof protective coating. C. Bitumen for leakage prevention and down proofing usage. aggregate surfaces and water. Bitumen is used as a binder in road construction and in protective coatings and adhesives used in the construction industry. Bitustick15 contains a tacky bitumen compound which can stick to human skin during application. Asbestos free,. The coating dries to form a black flexible protective film. Add to wishlist. 60 minutes +20 °C: approx. Find here all our communication mataerials for Products and Systems. Alcolin. Depending POLYCOAT RBE 1000 on your preferences, you can choose to SBS modified bitumen jellified emulsion WATERPROOFING FLEXIBLE ENVIRONMENT. USES To provide a waterproof membrane on structural re-Item Code: 520900100012 Category: Bitumen Coating. It is a ready-to-use waterproofing material obtained by mixing water and bitumen by using special methods. 3. Prior to application Colbond Multi should be circulated thoroughly. Note: Curing efficiency of Bitumen based emulsions will not be high as that of Resin based curing compounds COvERAGE The coverage varies depending on the type of use: General use : 1-2 m²/L/coat at required no. However, if the primer after application is left open for more than 24 hours after it becomes dry, clean the surface of any settled dust and apply a fresh coat of the. The primer can be appliedWe Store and Supply a wide variety of Bituminous materials which are used for road construction, roofing, waterproofing and other applications. modified with high content of Styrene Butadiene Styrene. Curing and waterproofing can be completed in one application. Our Cold Mix Bitumen Emulsion is available in packaging of different sizes as per the requirements of the clients. It’s specially designed water-based Bitumen Emulsion with low viscosity and extended setting time makes it an ideal. Hot Joint Paint seals the edges of freshly laid sections of asphalt during road repairs: Applied hot to seal vertical joints. A K High Gloss Aluminium Paint (Bitumen Based), Packaging Size: 20 Ltr Drum. NC Wood Paint; PU Wood Paint; PU Texothropic; PU Anit-Bacteria; PU Heat Resistant; Low VOC; Water Base Product Low VOC; Polyester; Acrylic Paint;. Thin it in a ratio of 4:1 (4 parts poly, 1 part paint thinner). P. Bitumen Emulsion K1-70 Is also used for Fog Sealing, Mist Spraying, Concrete Curing, Grouting, Sealing, Patching, Formation, and Sub-base and. General purpose, solvent-based. Rubberized bitumen emulsion Polycoat RBE 10 is an emulsified rubber modified bitumen coating, which dries to form a tough, seamless, flexible vapor proof protective coating. The coating dries to form a black flexible protective film. 4. Exposure to bitumen emulsion is not hazardous but skin contact should be avoided. Add what you want to buy into the cart and fill in your contact details. Additional information. Other examples are soundproofing, explosives,. Our representative will contact you to confirm your order and discuss further details and delivery options. Alfa Coat 5 is designed for use on horizontal and vertical surface. It's convenient to use since no need to heat asphalt emulsion while using. The coating after curing forms a tough Sika Bitumen W® is supplied ready for use . Description Bitumen emulsion paint Polycoat is an emulsified thixotropic bitumen protective coating. Polycoat RBE 10 conforms to the requirement of ASTMD 1227 Type lll, class 1. However, if the primer after application is left open for more than 24 hours after it becomes dry, clean the surface of any settled dust and apply a fresh coat of the. After having mixed with water with a ratio of approximately 20%, it is applied with a bitumen brush, roller, or pistol. bitumen adhesive tape (Watertite TS 15)*. 17 Sharjah, UAE Sajja Store :. Resists the attack of salts like chlorides and sulphates that are present in the soil; Easy to apply; Cold appliedOil, grease, paints, or other contaminants shall be removed by using rug cloth and paint scraper respectively. Cold applied. Add what you want to buy into the cart and fill in your contact details. Note: Curing efficiency of bitumen based emulsion will not to be high as that of resin based curing compounds. Polycoat RBE 10 is an emulsified rubber modified bitumen coating, which. Bitumen Emulsion Rs 1. Can be applied on damp substrates. Colbond Multi forms a uniform film of polymer modified bitumen on both horizontal and vertical faces forming a strong adhesive bond between bituminous overlay and the existing surface. 5% of bitumen is used for sealing and insulating purposes in various building materials such as carpet tile backing and paint. Back to: Water Proofing. Satham – 050 1409388 Mr. SikaTite-BE is a water based bitumen emulsion modified with acrylic latex polymers. Material base: Aqueous bitumen emulsion Density: 1. Coatings - Special Liquids. PROPERTIES. C. For best results, tack coating is strongly recommended when performing such tasks as overlaying with hot rolled asphalt, macadam or when patching or carrying out inlaid work. of coats cLeaNiNG Clean all tools immediately after use with clean water. The viscosity can be altered by adding.