Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Product Type
- Technologies
- Product Families
Features & Benefits
- Ready-to-Use Product Features
- Advantages
- Provides resistance to the majority of concentrated oxidizing acids, such as nitric acid to 50%, sulphuric acid to 75%, hydrochloric acid to 36%, phosphoric acid to 85%, sodium hydroxide to 50% and sodium hypochlorite.
- It is also resistant to hydrofluoric acid (with carbon-based filler) and a large number of concentrated alkalis and salts.
Applications & Uses
- Markets
- Application Method
- Typical Uses
- It is one of the most corrosion-resistant materials on the market.
- It is an extremely flexible material that can be installed as a coating, membrane, mortar, screed or concrete, depending on the coarseness of the powder component.
- This versatility allows for its installation in a number of applications such as; general tiling/masonry work, trenches, pits, floors, walls, plinths, tanks and storage areas.
- Classifications
Typical Use Installed Thickness Filler (ParticleSize) VE60 Mortar 1 - 10 mm ≤0.7mm - Chemical Resistance
Provides the maximum resistance to even the most aggressive chemical environments, including Hydrofluoric acid.
- Surface Preparation
- For all pre-existing surfaces of metal or concrete, abrasive blast or scarify to remove all laitance and surface contaminant.
- A primer base should be applied before application to ensure sufficient key.
- The surface should be dust-free and dry and the ambient temperature should be above the dew point of air.
- Prepare the substrate with either PE120 membrane (metal) or AC90 primer (concrete) to ensure an adequate bond with the the material.
- For new-build concrete constructions, a damp tolerant primer AC95 is recommended and can be applied within 48 hours of the concrete set, potentially expediting any construction schedule.
- It is recommended, to ensure a sufficient key between the primer and the product, that a light scatters of inert material (typically sand) is applied to the primer to provide a non-sheen finish.
- The product can then be applied once priming has been completed.
- For coatings and membranes on vertical surfaces, it is recommended to apply the coating of the product whilst the primer layer is still slightly tacky (ie usually within 2 hours of primer application).
- This will allow a bond to form between the primer and the top coat layer improving adhesion and reducing run or pooling of the top coat.
- When casting thicker slabs of the product, formers should be constructed of firmly braced wood or metal, which has been given a light coating of release agent.
- The release agent will prevent the product from adhering to the screeds or formers, but should not leave a residue on the freshly cast material.
- The formers are to be completely sealed and rendered watertight with heavy consistency pliable caulking. Seal formers placed over horizontal rough surfaces.
- Do not apply over any standing water. In severely aggressive environments, corrosion-resistant reinforcement must be used in place of formers.
- Do not impose loads until final set has been achieved.
- Lower temperatures will require longer cure periods.
- Coverage
Typical coverage rates on a relatively smooth concrete surface for a Novolac Vinylester materials:
Typical Use Thickness Coverage VE60 Mortar/Screed 2mm
5mm2 kg/m²
5 kg/m²
For fully bedded and jointed (4mm) VE60 mortared bricks of dimensions:
Brick/Tile Powder Solution Unit 230x114x75mm
(Wall-114mm)17 5 kg/m² 230x114x65mm
(Wall-114mm)19 5.5 kg/m² 230x114x50mm
(Floor- 50mm)9 2.5 kg/m² 230x114x38mm
(Floor-38mm)7 2 kg/m² 230x114x20mm
(Floor-20mm)5.5 1.5 kg/m² - Application
- It typically comprises a vinyl ester solution and a catalyzed filler powder.
- Prior to application, the epoxy components must be mixed thoroughly before the addition of any filler powder.
- Ensure that both the epoxy solution and hardener components are at approximately 20°C before mixing to ensure a workable viscosity.
- Values are an intended guide.
Mixing ratio of Solution to Powder VE60 ~8.5kg Solution to 25kg VE55 Powder
~1L Solution to 3L VE60 Powder
- Using an inclined mixer or paddle mixer, place the powder in mixing vessel and add the solution.
- Mix thoroughly for at least 3 minutes; the powder will ‘wet’ out to a mortar. For coatings, apply by paint brush, roller or float/trowel depending on thickness/application desired.
- Apply until a smooth coating has been established without allowing the materials to form into pools or flood the area.
- Leave to cure, and then apply second coat 12- 16 hours but not later than 48 hours after the first, to even off the finish and give an attractive gloss.
- To aid adhesion of the second coat, the application of a fine quartz scatter before full cure is recommended to provide a key for subsequent layers.
- Where necessary, enhanced strength and durability of coatings can be achieved through the addition of a fine weave glass matting material.
- To provide anti-slip facilities to the coating it is recommended that the mixed product is allowed to cure for 1 hour before application of an anti-slip scatter material.
- As such, examination of the lining should be made after the second coat has been applied to ensure complete coverage.
- Vinylester-based materials also stay tacky for a number of days after installation.
- Prevent access during this time or apply a light scatter of inert material to prevent footmarks or the adherence of dirt.
- For mortars, application should be made with either float or trowel to all jointing surfaces to ensure a complete chemical barrier.
- For all trowel/float applications, regular brushing of tools with solvents ensures a smooth (non-drag) finish.
- However, do not apply too much solvent or this will lead to blistering of the vinylester finish.
- All tools and equipment should be cleaned off with solvents and damp cloths to ensure their continued use.
Properties
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Density | 1180.0 | kg/m³ | — |
| Specific Volume | 0.84 | m³/tonne | — |
| Tensile Strength | 11.5 | N/mm² | — |
| Compressive Strength | 80.0 | N/mm² | — |
| Flexural Strength | 80.0 | N/mm² | — |
| Bond Strength (Wire Cut Bricks) | 4.2 | N/mm² | — |
| Coefficient of Expansion | 16.0 | 10⁻⁶ °C | — |
| Water Absorption | 0.25 | % | — |
| Maximum Operating Temperature | 105.0 | °C | — |
| Coverage - Mixed Primer | 2.0 | m²/kg | — |
Regulatory & Compliance
- Certifications & Compliance
Safety & Health
- Safety
- Adequate ventilation must be provided whilst work is in progress and is compulsory for closed or indoor applications.
- The instructions on storage, fire and explosion are to be observed.
- No releases to the sewers or drains are to be permitted under any circumstances.
- Ventilation is required with special consideration for enclosed or confined areas.
- Air movement must be designed to ensure turnover at all locations in work area and adjacent areas to avoid build-up of heavy vapors.
Packaging & Availability
- Standard Packing
- Solution - 25kg in 25L UN drums (24 per pallet)
- Powder - 25kg lined poly weave bags (40 per pallet)
Storage & Handling
- Pot Life
- at 20°C - 25mins
- at 30°C - 20mins
- at 40°C - 10mins
- An initial set occurs approximately 4hours after mixing, light foot traffic permissible after 12hours and with a full chemical cure occurring after 5-7days.
- The materials should never be exposed to water, steam or chemical environments before a full chemical cure is completed.
- Do not mix more material than required by pot-life.
- It cannot be reconstituted. Never add unapproved materials to the mix, in particular water.
- After mixing spread out on to the surface to avoid self-generated heat.
- Large mixed volumes that are not thinned will flash set, becoming extremely hot and producing smoke.
- Storage Information
Storage Condition:
- Store in a cool, dry, frost-free place.
- Normal storage conditions in up to 10°C.
- Do not store a combined stack of Solution and Powder components.
- Accidental leakage could lead to flash setting of material, producing smoke.
- Storage at, or exposure to, warmer temperatures or UV light may initiate a setting reaction.
- In particular, storage at temperatures higher than 30°C will lead to the premature setting of the solution component.
- It is recommended that air-conditioned storage is used at all times before use.
- Prior to mixing, ensure solution and powder components are warmed to approximately 20°C to ensure sufficient viscosity for mixing.
- During extended (unforeseen) storage time periods, the reactivity of the Novolac Vinylester components will begin to reduce.
- The formulation is flexible so that additional accelerator can be added to the solution and/or additional accelerator added to the powder.
- Small test samples are advised before proceeding.
Shelf Life:
- Solution - 12 months
- Hardener - 12 months