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Help in choosing the right Levelling Compound

There is without doubt a wide choice of options available and advice should be taken if a specialist compound may be required.

The information below will assist you in the selection process. The PROBOND® Series is designed to make your choice easier, by catering for the vast majority of flooring requirements, while providing a guarantee of quality, when correctly applied.

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We recommend priming for FL307, FL325, and FL330. For FL390 and FL301 priming is essential for surface types highlighted below with (p).

Always check datasheets for more information.

To choose the right type of floor levelling compound, it is necessary to consider the difference in levels needed for a particular floor, compatibility with the type of substrate, the area of work and the necessary timeframe of the job.

Levelling Compound Selector – check your substrate options

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Fast Setting Flexible
FL307

SURFACE TYPE

Ceramic Tiles

Concrete

Fibreglass

Floating Floors

Floor Grade Asphalt

Floor Grade Bitumen

Metal Surfaces

Natural Stone Tiles

Plywood Overlay - Min 6mm

Porcelain

Sand/Cement Screed

Tile Backer Boards

Tongue & Groove Boards*

Underfloor Heating

Vinyl Tiles

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2 Part Multi-Purpose 
FL325

SURFACE TYPE

Ceramic Tiles

Concrete

Floor Grade Asphalt

Floor Grade Bitumen

Natural Stone Tiles

Plywood Overlay - Min 15mm

Porcelain

Sand/Cement Screed

Tile Backer Boards

Underfloor Heating

Vinyl Tiles

 

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2 Part Rapid Setting High Performance 
FL390

SURFACE TYPE

Adhesive Residue (Existing)

Below DPM (Moisture Tolerant)

Ceramic Tiles

Concrete

Epoxy DPM

Fibre Cement Sheet

Fibreglass(p)

Floor Grade Asphalt

Floor Grade Bitumen

Metal Surfaces(p)

Natural Stone Tiles

Plywood Overlay - Min 6mm

Porcelain

Sand/Cement Screed

Tile Backer Boards

Underfloor Heating

Vinyl Tiles

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Fine Flow Smooth 
FL330

SURFACE TYPE

Ceramic Tiles

Concrete

Epoxy DPM

Natural Stone Tiles

Porcelain

Sand/Cement Screed

Underfloor Heating

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Patch Repair Feather Edge 
FL315

SURFACE TYPE

Chipboard Overlay – Min 18mm

Concrete

Existing Floor Tiles

Existing Cement Sheet

Floating Floors

Floor Grade Asphalt

Floor Grade Bitumen

Plywood Overlay – Min 6mm

Sand/Cement Screed

T&G Floorboards

Tile Backer Boards

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Super-Fast 2 Part High Performance
FL301

SURFACE TYPE

Adhesive Residue (Existing)

Below DPM (Moisture Tolerant)

Ceramic Tiles

Concrete

Epoxy DPM

Fibre Glass (p)

Floor Grade Asphalt

Floor Grade Bitumen

Green Screed

Natural Stone

Plywood Overlay - Min 6mm

Porcelain

Rigid Steel /Metal (p)

Sand / Cement Screed

Tile Backer Boards

Underfloor Heating

Vinyl Tiles

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Rapid Flexible Renovation
FL305

SURFACE TYPE

Ceramic Tiles

Concrete

Epoxy DPM

Floating Floors

Floor Grade Asphalt

Floor Grade Bitumen

Green Screed

Natural Stone Tiles

Plywood Overlay

Porcelain

Sand / Cement Screed

T&G Floorboards

Tile Backer Boards

Underfloor Heating

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Rapid Dry Patch Repair Mortar
FL345

SURFACE TYPE

Ceramic Tiles

Concrete

Epoxy DPM

Natural Stone Tiles

Porcelain

Sand / Cement Screed

Tile Backer Boards

Underfloor Heating

* Minimum application depth on timber substrates is 4mm

Levelling Compound Selector – compare performance with your requirements

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Fast Setting Flexible
FL307

Apply From
2 – 50mm

Working Time
20-30 mins

Foot Traffic
3 hrs

Cover Ready
Tile 3 hrs
Resilient Flooring 24hrs

Flexural Strength
6N/mm2 at 28 days

Compressive Strength
25N/mm2 at 28 days

Approximate Coverage
20kg = 4.2m2 at 3mm

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2 Part Multi-Purpose 
FL325

Apply From
2 – 12mm

Working Time
20-25 mins

Foot Traffic
2 hrs

Cover Ready
Tile 4 hrs
Resilient Flooring 12hrs

Flexural Strength
6N/mm2 at 28 days

Compressive Strength
20N/mm2 at 28 days

Approximate Coverage
20kg = 5m2 at 3mm

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2 Part Rapid Setting High Performance 
FL390

Apply From
2 – 12mm

Working Time
20-25 mins

Foot Traffic
90 mins

Cover Ready
Tile 3 hrs
Resilient Flooring 4hrs

Flexural Strength
7N/mm2 at 28 days

Compressive Strength
16N/mm2 at 28 days

Approximate Coverage
20kg = 5m2 at 3mm

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Fine Flow Smooth 
FL330

Apply From
Feather - 20mm

Working Time
20-30 mins

Foot Traffic
3 hrs

Cover Ready
Tile 3 hrs
Resilient Flooring 24hrs

Flexural Strength
7N/mm2 at 28 days

Compressive Strength
30N/mm2 at 28 days

Approximate Coverage
20kg = 4.2m2 at 3mm

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Patch Repair Feather Edge
FL315

Apply From
0 – 3mm
(12mm Max. successive coats)

Working Time
10-15 mins

Drying Time 
15 mins
(depends on substrate)

Cover Ready
15 mins
(depends on substrate)

Flexural Strength
6N/mm2 at 28 days

Compressive Strength
n/a

Approximate Coverage
11kg = 50m2 at 1mm

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Super-Fast 2 Part High Performance
FL301

Apply From
2 – 15mm

Working Time 
10-15 mins

Foot Traffic 
30 mins

Cover Ready
90 mins
(Ceramic 45-60 mins)

Flexural Strength
6N/mm2 at 28 days

Compressive Strength
16N/mm2 at 28 days

Approximate Coverage
20kg = 4.5m2 at 3mm

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Rapid, Flexible Renovation
FL305

Apply From
3 – 40mm

Working Time 
20-30 mins

Foot Traffic 
2- 2.5 hours

Cover Ready
4 hours

Flexural Strength
5N/mm2 at 28 days

Compressive Strength
25N/mm2 at 28 days

Approximate Coverage
20kg = 5m2 at 3mm

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Rapid Dry Patch Repair Mortar
FL345

Apply From
1 – 20mm

Working Time 
10 mins

Foot Traffic 
30 mins

Cover Ready
90 mins

Flexural Strength
4.5N/mm2 at 28 days

Compressive Strength
40N/mm2 at 28 days

Approximate Coverage
10kg = 3.2m2 at 2mm

Application Temperature +5ºC to + 30ºC

Know your levelling compounds and looking for a particular benefit?

When all levelling compounds are right for the job, consider what benefits make the job easier for you – the PROBOND® 300 Series has it covered.

Doesn't require a Primer*
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When speed and simplicity is important
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Rapid setting
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When a fast walk on time is required
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Levels to a depth up to 30mm*
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For uneven floors
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Levels to a depth over 30mm*
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For vastly uneven floors
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Extra Fine and Fast Flowing
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Ideal for sheet vinyl / no rubbing down
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2 part solution
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When no water is no site
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For feather finish

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Need a fast setting solution

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For patch repairs

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Need a fast setting solution

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*See selector guide for substrates that require priming. Note: in some cases priming will be required.

How much will you need?