Sikafloor 150 is a two part, low odour, low viscosity, multipurpose, epoxy resin which can be used as an epoxy primer, levelling mortar and mortar screed.

Sikafloor®-150 may only be used by experienced professionals.

Sikafloor 150 can be used for priming concrete substrates, cement screeds and epoxy mortars. It can also be used for moisture control on cement-based substrates with moisture contents of ≤ 4 % CM (99 % RH).

It can also be used as a primer for all Sika Epoxy and PUR floorings, as a binder for levelling mortars and mortar screeds and for substrate consolidation on concrete, cement and anhydrite screeds as well as refurbished substrates.

Quick Links - Click To Jump To Section:

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

Features & Benefits

• May only be used by experienced professionals.
• Low odour, low viscosity.
• Multipurpose, epoxy resin which can be used as an epoxy primer, levelling mortar and mortar screed.
• Primer for all Sika Epoxy and PUR floorings.
• Binder for levelling mortars and mortar screeds.
• For substrate consolidation on concrete, cement and anhydrite screeds and refurbished substrates.
• Suitable for use on underfloor heated screeds.
• Short waiting times.
• Multi-purpose.

Product Information

Shelf Life: 24 months from date of production.

Density: 1.08 kg /l.

Application Temperature: 10°C to 30°C.

Pot Life: 30 minutes (at 20°C).

Mixing Ratio: Part A : Part B = 74 : 26 (by weight)

Solid Content: 100% by volume.

Storage Conditions: The product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5°C and +30°C. Always refer to packaging.

Surface Preparation

• Cementitious substrates (concrete / screed) must be structurally sound and of sufficient compressive strength (minimum 25 N/mm²) with a minimum tensile strength of 1.5 N/mm².
• Substrates must be clean, dry and free of all contaminants such as dirt, oil, grease, coatings, laitance, surface treatments and loose friable material.
• Cementitious substrates must be prepared mechanically using suitable abrasive blast cleaning or planing / scarifying equipment to remove cement laitance and achieve an open textured gripping surface profile suitable for the product thickness.
• High spots can be removed by grinding. Weak cementitious substrates must be removed and surface defects such as blow holes and voids must be fully exposed.
• Repairs to the substrate, filling of cracks, blowholes/voids and surface levelling must be carried out using appropriate products from the Sikafloor®, Sikadur® and Sikagard® range of materials. Products must be cured before applying Sikafloor®-150.
• All dust, loose and friable material must be completely removed from all surfaces before application of the product and associated system products, preferably by vacuum extraction equipment.

Mixing

• Prior to mixing all parts, mix separately part A (resin) using a low speed single paddle electric stirrer (300 - 400 rpm).
• Add part B (hardener) to part A and mix part A + B continuously for 3 minutes until a uniform mix has been achieved.
• When parts A and B have been mixed. Using a double paddle (axis) electric stirrer (>700W), pan type revolving or forced action mixer or other suitable equipment (free fall mixers must not be used).
• If required, gradually add the appropriate granulometry of dried quartz sand and if required Extender T. Mix for a further 2 minutes until a uniform mix has been achieved.
• To ensure thorough mixing pour materials into another container and mix again to achieve a smooth consistent mix
• Excessive mixing must be avoided to minimise air entrainment.
• During the final mixing stage, scrape down the sides and bottom of the mixing container with a flat or straight edge trowel at least once to ensure complete mixing.
• Mix full units only. Mixing time for A+B+quartz sand = 5 minutes.

Application

• Strictly follow installation procedures as defined in information manuals, application manuals and working instructions which must always be adjusted to the actual site conditions.
• Prior to application, confirm substrate moisture content, relative air humidity, dew point, substrate, air and product temperatures.
• If moisture content > 4% parts by weight, Sikafloor® EpoCem® may be applied as a Temporary Moisture Barrier (T.M.B.) system.

Primer

• Pour mixed Sikafloor®-150 onto the prepared substrate and apply by brush, roller or squeegee then back roller in two directions at right angles to each other.
• Ensure a continuous, pore free coat covers the substrate.
• If necessary, apply two priming coats.
• Confirm primer waiting /overcoating time has been achieved before applying subsequent products.
• Refer to individual primer Product Data Sheet.

Levelling Mortar

• Apply the levelling mortar by squeegee/trowel to the required thickness.

Intermediate Layer

• Pour mixed Sikafloor®-150 onto the prepared substrate and spread evenly using a serrated trowel to the required thickness.
• Roll immediately in two directions at right angles to each other with a spiked roller to ensure even thickness and if required broadcast with quartz sand.
• Broadcast between ≥15 minutes minimum, ≤30 minutes maximum (at+20°C), lightly at first and then to excess.

Bonding Bridge

• Pour mixed Sikafloor®-150 onto the prepared substrate and apply by brush, roller or squeegee.
• For epoxy screed, back roller in two directions at right angles to each other.
• Ensure a continuous, pore free coat covers the substrate.
• If necessary, apply two priming coats.

Epoxy Screed/Repair Mortar

• Apply the repair or screed mortar onto the “tacky” bonding bridge.
• For the screed, use levelling battens and screed rails as necessary.
• After a short waiting time, compact and smoothen the mortar with a trowel.
• For the screed, a teflon coated power float (~20 - 90 rpm) is recommended.

CLEANING OF TOOLS

• Clean all tools and application equipment with Thinner C immediately after use.
• Hardened material can only be removed mechanically.

Limitations

• After application, Sikafloor®-150 must be protected from damp, condensation and direct water contact (rain) for 24 hours.
• If temporary heating is required, do not use gas, oil, paraffin or other fossil fuel heaters, these produce large quantities of both CO² and H²O water vapour, which may adversely affect the finish. For heating use only electric powered warm air blower systems.
• Discard any material over the pot life recommendations.
• Do not apply on substrates with rising moisture.
• Sikafloor®-150 mortar screed is not suitable for frequent or permanent contact with water unless sealed.
• Pre-trials must be carried out for mortar mixes to assess suitable aggregate grain size distribution.
• For external applications, apply on a falling temperature. If applied during rising temperatures “pin holing” may occur from rising air. These pinholes can be closed after light grinding by applying a scratch coat of Sikafloor®-150 mixed with ~3 % of Extender T.

• Construction joints require pre-treatment. Treat as follows:
  • Static Cracks: prefill and level with Sikadur® or Sikafloor® epoxy resin
  • Dynamic cracks: to be assessed and if necessary apply a stripe coat of elastomeric material or design as a movement joint.
• The incorrect assessment and treatment of cracks may lead to a reduced service life and reflective cracking on the surface.

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.

Click to go back to the top of the page