Sika Level 01 Primer is an one part, white acrylic resin polymer water based dispersion, used to prime and seal concrete or mortar substrates prior to underlayment mortar application.

Sika® Level-01 Primer is used for sealing of mineral substrates and enhancing the bond of cementitious underlayments, industrial grade screeds and mortars suitable for priming anhydrite screed substrates. Particularly suitable for using prior to the Sika® Level range of underlayments.

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• Features & Benefits
• Product Information
• Application
• Limitations
• Health And Safety

Features & Benefits

• Used to prime and seal concrete or mortar substrates.
• Seals concrete surfaces in a single, economic operation.
• For improving the bond between the substrate and the mortar.
• Excellent bond strengths throughout the range of application temperatures.
• Quick drying and fast film formation.
• Easy to apply.
• Can be used at different dilution rates depending on the substrate porosity.

Product Information

Shelf Life: 12 months from date of production.

Storage Conditions: Stored properly in original, unopened and undamaged sealed cans, in dry conditions at temperatures between +5°C and +25°C.

Chemical Base: Water based acrylic resin.

Consumption: ~ 0.10–0.20 kg / m²/coat (5–10 m²/ kg/coat ) of diluted product. Some substrates will require higher consumption than indicated above. This figure is theoretical and does not include for any additional material required due to surface porosity, surface profile, variations in level and wastage, etc.

Application

Substrate Preparation

• Surfaces must be sound, open textured, clean and free from frost, cement laitance, surface water, oil, grease, coatings, all loose or friable particles and any other surface contaminants.
• The substrate must be prepared by suitable mechanical preparation techniques such as high-pressure water or abrasive blast cleaning equipment.
• All dust, loose and friable material must be completely removed before application of the product, preferably by brush and/or vacuum.
• The substrate can be dampened to a saturated surface dry (SSD) condition prior to application of the diluted Sika® Level-01 Primer.

Mixing

• Sika® Level-01 Primer is supplied as a concentrate for dilution.
• 1 or 2 coats at a 1:3 Sika® Level-01 Primer to water dilution by volume is adequate for most cases.
• Add Sika® Level-01 Primer to the pre-measured amount of clean drinking quality water according to the desired dilution rate (see mixing ratio above) and stir thoroughly (~1 minute) until a homogeneous mix is achieved (mixing by hand is adequate).

Application

• Application is best done by brush or by roller (which achieve better penetration and productivity).
• Spray application is also possible, but ‘ponding’ on the surface must be avoided.
• The suitability of any spray equipment must be tested first.
• Wait for the first coat to dry tack-free before applying the second coat.

Cleaning Of Tools

• Clean all tools and application equipment with water.
• Hardened/cured material can only be removed mechanically.

Limitations

• In hot weather (above +25°C) store Sika® Level-01 Primer in a cool place prior to use.
• In low temperatures (below +15°C) the product may thicken and be less easy to apply.
• Do not apply to substrates at temperatures below +10°C and / or relative humidity above 75 %, which will hinder the film formation and may lead to poor film formation and pinholes in the levelling layer.
• The substrate should be surface dry with relative humidity of surrounding air low enough to allow efficient drying of the primer.
• Do not use product which has been subject to frost.
• Do not add the water to the concentrate as it will cause the product to foam.
• Spray equipment can be used, but ponding must be avoided. Brush or rollers help the product to penetrate better into the substrate.
• This product does not form a moisture barrier. Do not apply when a damp proof membrane is nonexistent or has failed.
• The product can be used in combination with industrial self levelling screeds after adequate texturing of the concrete substrate to provide sufficient mechanical bond.
• The application of an excessive amount of the primer may actually reduce the resulting bond strength values. This amount will vary depending on the substrate.
• Sika® Level-01 Primer is not designed as primer for Sika® PU or AT based adhesives, see relevant productdatasheet for suitable primers.
• If in doubt, apply a test area first.

Health And Safety

Further information about hazardous influences and protection are detailed in individual health and safety data sheets.

Please contact Rawlins Paints' Technical Support Team on 0113 2455450 (option 2) or send a message to [email protected] for more information.

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