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UltraFloor Prime IT Multi-Surface Primer

UltraFloor

UltraFloor Prime It Multi-Surface Primer (MSP) is:

Primer for porous and non-porous substrates

A moisture tolerant, water based acrylic primer, sealer and bonding aid, suitable for porous and non-porous substrates. Prime IT Multi-surface Primer  has been designed to promote the adhesion of UltraFloor smoothing underlayments. It is a pink liquid and dries to give a pink film.

  • Moisture tolerant
  • Enhances adhesion
  • Reduces pinholing
  • Coverage: 200m² at 3:1 dilution
  • Can be used as a curing agent
  • Ready to receive smoothing underlayments: 1-2 hours (at 20oC)
  • Size: 5 Litre
  • Pigmented pink for coverage control
  • Calculation for porous surfaces is based on applying one coat at 3:1 dilution, followed by one coat at 1:1 dilution
  • Calculation for non-porous surfaces is based on applying one neat coat of MSP

UltraFloor Prime IT Multi-Surface Primer further information:

Coverage:

PorousCoverage per 5 litre bottleConsumption per litre of primer
1:1 dilution
3:1 dilution
70-100m2
140-200m2
14-20m2
28-40m2
Non-porous
Neat25-50m25-10m2
Curing Agent
1:1 dilution30-40m26-8m2

Coverage will depend on dilution rates or primer and also texture of subfloor. The rates above are based on a smooth subfloor at the given dilution.

USES

UltraFloor Prime IT MSP stabilises and consolidates the substrate surface and reduces the absorbency, enabling subsequent materials to flow, cure and bond successfully. It is recommended for use prior to the application of smoothing underlayments and between layers when multilayer applications are being carried out to minimise pinholes and maximise interlayer adhesion.

UltraFloor Prime IT MSP can also be used as a curing agent for cementitious based products, diluted 1:1 with water.

SUBFLOOR PREPARATION

All surfaces must be dry and in a sound and stable condition free from contaminants that may prevent adhesion such as dust, oils, grease, surface laitance, water soluble adhesive residues and weak smoothing underlayments etc. Smooth dense surfaces must be roughened by mechanical scabbling to enhance the key. Subfloors should be tested in accordance with BS8203 to ensure a moisture reading of less than 75% RH should be achieved. Where this has not been attained or where there is uncertainty that the subfloor design incorporates a DPC then UltraFloor DPM IT or UltraFloor Suppress IT must be applied (see relevant UltraFloor product technical datasheet).

UltraFloor recommend consultation with subfloor preparation equipment suppliers to ensure correct equipment for the substrates is selected. All substrates must be at a minimum temperature of 5°C before, during and after application of the primer to ensure film forming and bonding is achieved.

MIXING

Shake bottle thoroughly before use. Always use a clean mixing bucket and clean water.

UltraFloor Prime It Multi-Surface Primer video:

APPLICATION

Absorbent Subfloors (concrete, sand & cement, plywood etc): UltraFloor Prime IT MSP should be applied using a brush or roller and scrubbed well into the surface avoiding pooling. The number of coats required will be subject to the substrate (see below). Please refer to the coverage rate chart overleaf for guidance. Drying rates will be directly linked to subfloor absorbency and ambient conditions including temperature and humidity. Always allow the product to dry to a pink film. Under good drying conditions, UltraFloor Prime IT MSP applications will be ready to receive further materials after 1-2 hours.
Non-absorbent Subfloors (power floated concrete, epoxy resin damp proof membranes, steel mezzanine decks, plywood and asphalt etc): UltraFloor Prime IT MSP should be applied neat as a single coat, using a brush or roller. Apply to give a thin uniform coverage with no pooling of primer. Ensure a complete overall application is achieved. Once dry, the primer will exhibit a light tack and is ready to receive smoothing underlayments.

Keep the area free from dust or contamination during the drying time and ensure further products are applied within 36 hours. Ambient conditions should be maintained above 10oC during this time. Drying rates will be directly linked to ambient conditions including temperature and humidity. Always allow to dry to a pink film. Under good drying conditions, UltraFloor Prime IT MSP applications will be ready to receive further materials after 1-2 hours.

SUBSTRATES

Power Floated Concrete: Should be treated as non-porous. Mechanically abrade (shotblast or scarify) to remove surface hardeners and expose the cement/aggregate. Apply UltraFloor Prime IT MSP neat in a thin uniform coating, allowing it to dry fully (usually 1-2 hours).

Tamped or Pan Floated Concrete: These should be treated as porous, and any laitance or weak material should be mechanically removed to ensure a sound, dry and dust-free surface. Apply UltraFloor Prime IT MSP diluted 3:1 with clean water and allow to dry fully (usually 1-2 hours). Apply a second coat diluted 1:1 with clean water allowing it to dry to a pink film (usually 1-2 hours).

Sand/Cement Screeds: Weak, friable or damaged screed should be uplifted and repaired. Apply UltraFloor Prime IT MSP diluted 3:1 with clean water and allow to dry fully (usually 1-2 hours). Apply a second coat diluted 1:1 with clean water allowing it to dry to a pink film (1-2 hours).

Existing Smoothing Underlayments: Remove adhesive residues and treat as an absorbent floor. Apply UltraFloor Prime IT MSP diluted 3:1 with clean water and allow to dry fully (1-2 hours). Apply a second coat diluted 1:1 with clean water allowing it to dry to a pink film (1-2 hours).

Calcium Sulphate/Anhydrite/Hemihydrate Screeds: Mechanically remove any laitance and provide a sound, clean, dry and dust-free surface. The relative humidity within the subfloor must read below 75% RH prior to the application of a barrier primer (damp proof membranes or moisture vapour suppressants are not recommended). These types of screeds often incorporate warm water underfloor heating systems (see relevant manufacturers’ technical datasheet) which can be used, along with dehumidifiers, to speed up the drying process. Manufacturers normally suggest this can be conducted after 7 days minimum curing. Apply UltraFloor Prime IT MSP diluted 3:1 with clean water and allow to fully dry overnight. Apply a second coat diluted 1:1 with clean water allowing it to dry to a pink film (usually 1-2 hours).

Surface DPM and MVS: These are considered as non-absorbent substrates. Applications should be carried out within 12 hours of Ultra Floor DPM IT and/or UltraFloor Suppress IT application (see relevant UltraFloor product technical datasheet).

Flooring Grade Plywood: Plywood (including newly installed e.g. SP101) must be of flooring grade and mechanically fixed to a sound strong base of 15mm thickness or greater. Plywood must be sealed on the underside and along all edges to ensure moisture absorption from beneath is kept minimal. For thinner flooring grade plywood subfloors contact UltraFloor’s technical department. Plywood absorbency differs depending on the nature of the surface veneer. Normally a diluted coat of UltraFloor Prime IT MSP (3:1 with clean water) is recommended. For dense veneers of very low absorbency apply UltraFloor Prime IT MSP neat in a thin uniform coating.

Cementitious Backer Boards: These are not usually highly absorbent so a single primer application is suitable. Apply a coat of primer diluted 5 parts water to 1 part primer. Allow to dry completely.

Flooring Grade Asphalt: New asphalt must be left for a minimum of 7 days and degreased to remove surface bloom. Existing asphalt should be assessed for cracks. If cracks are present they need to be repaired to give a continuous strong subfloor. The use of epoxy resins bulked out with sand is normally sufficient. Do not use on roofing grade or tarmac substrates.

Terrazzo/Granolithic Ceramic Tiles: These must be securely bonded, and any surface treatment should be mechanically removed. A good mechanical key should be ensured by abrading the surface using a Surface Texturing & Grinding (STG) machine (a diamond disc is recommended). These subfloors can be treated as low porosity and primed using UltraFloor Prime IT MSP neat.

Non-flexing Steel Floors (e.g. mezzanine decks): UltraFloor Prime IT MSP is only suitable for use on internal steel floors that are rust proof. Floors must be mechanically secure with no deflection between adjacent panels of steel. Ensure any release agents or oils are removed. Mechanically abrade using a suitable mechanical machine (STG or shot blast) or a wire brush to give an abraded shiny corrosion free surface and remove all excess traces of metal.

Existing PU, Epoxy Resin and Painted Floors: Mechanically abrade the surface using a suitable mechanical machine (STG or shot blast) to give a suitable textured surface. This will also help identify any weak or poorly bonded paint which must be removed.

Existing Adhesive Residues: Use only on moisture tolerant adhesives. Best practice is always to remove as much friable or loosely bonded adhesive as possible, leaving only a thin firmly bonded film. Remove high spots of adhesive.

USE AS A CURING AGENT

Dilute UltraFloor Prime IT MSP 1:1 with clean water and transfer into a good quality spray bottle. Spray 8-10 inches away from surface immediately upon completion of laying cement materials, to provide an even, continous film. Do not apply by brush or roller, do not mix with other curing compounds.

STORAGE

Store in a closed original container at temperatures between 5oC and 30oC and out of direct sunlight and frost.

SHELF LIFE

Shelf life is 12 months from manufacture in above conditions.

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