Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Product Type
- Technologies
- Product Families
Features & Benefits
- Ready-to-Use Product Features
- Features
- PE120 will form a membrane on the substrate surface improving resistance to abrasion, impact and staining.
- It is provided in two-component format comprising, an epoxy solution and an epoxy-based hardener.
- Advantages
- In comparison with more traditional paints or primers, PE120 shows a great advantage in that it becomes part of the concrete and will therefore not flake off.
- It can actually restore defective screed due to its penetrative qualities.
- The poorer the condition of the screed the greater the impregnation and therefore the strengthening effect.
- It can be used in conjunction with glass cloth and mats, to build up a membrane, typically being applied between two or more coatings of PE120 to form a composite material such as PE120-GM290.
Applications & Uses
- Applications
- Typical Uses
- PE120 may also be used to renovate friable stone or brick surface.
- Other applications include use as a penetrative primer to provide a key prior to laying an epoxy or other resin-based flooring and chemical-resistant tiles or bricks.
- Easy to apply, it provides an attractive low sheen to the surface, rendering it nondusty, with resistance to oil and an extensive range of aggressive chemicals.
- It also makes the floor waterproof so cleaning becomes much easier.
- PE120 can also be used as an expansion joint material for concrete and tile preparations.
- Chemical Resistance
PE120 will not withstand high concentrations of some strong oxidizing acids such as sulphuric or nitric.
- Surface Preparation
- For all pre-existing surfaces of concrete or metal, abrasive blast or scarify to remove all laitance and surface contaminants.
- The surface should be dust-free and dry and the ambient temperature should be above the dew point of air.
- Application
- The primer comprises an epoxy solution and an epoxy-based hardener.
- Nominal primer thicknesses above concrete surface of up to 1mm are recommended.
- Values are an intended guide.
Mixing Ratio 1 part Solution to 1 part Hardener By weight
By volume~25kg Solution to 25kg Hardener
~1L Solution to 1L Hardener
- Using a paddle mixer, place Hardener in mixing vessel and mix thoroughly for at least 3 minutes.
- Once Hardener has been thoroughly homogenized, add Solution component and mix again for 3 minutes.
- Apply by paint brush or roller, for large areas a soft sweeping brush is best.
- Apply until absorption of concrete is satisfied without allowing the materials to form into pools or flood the area.
- Leave to cure, and if necessary 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 create an expansion joint, apply by pouring into joints and allowing a natural level to be found.
- Leave to cure, and if necessary after 12- 16 hours apply a top up layer if expansion joint is not flush with concrete surface but not later than 48 hours after the first, to even off the finish and give an attractive gloss.
- In the case of substantial falls, powder filler can be supplied to combine with the liquid mix to prevent flow and yet retain the properties of adhesion and flexibility.
- Where a secondary epoxy or other resin-based flooring layer is scheduled, the application of a fine quartz scatter before full cure is recommended to provide a key for subsequent layers.
- All tools and equipment should be cleaned off with solvents and damp cloths to ensure their continued use.
- Coverage
Typical primer coverage on a relatively smooth concrete surface for a mixed PE120 system is 0.5kg/m² at 1mm thickness.
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.
- It is pertinent to mention that PE120 is flammable and all sources of ignition; naked flames etc should be removed.
- 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)
- Hardener - 25kg in 25L UN drums (24 per pallet)
Storage & Handling
- Pot Life
- at 20°C - 60mins
- at 30°C - 40mins
- at 40°C - 25mins
- 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 25°C.
- Do not store a combined stack of Solution and Hardener components.
- Accidental leakage could lead to flash setting of material, producing smoke.
- Storage at, or exposure to, high temperatures may initiate a setting reaction.
Shelf Life:
- Solution - 12 months
- Hardener - 12 months