F Ball Stopgap Fast Track 30 Floor Smoothing Compound

Unit Price £22.95 + VAT

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Product Name

Bag Size

Bag Coverage m²

, ,

Application Thickness

Compatible Liquids

Working Time

Walk On Time

Ready For Use

Foot Traffic

Subfloor Type

Floor Preparation


Installation Type

Installation Method


Stopgap Fast Track 30, Rapid Setting Smoothing Underlayment

Stopgap fast track 30 is a rapid setting and rapid drying, self-levelling smoothing underlayment that incorporates the latest advances in cement technology providing a truly fast-track solution. It is suitable for use in light to heavy-duty applications for preparing sound absorbent and non-absorbent subfloors prior to the installation of new floorcoverings, such as both textile and resilient floorcoverings to be installed from as little as 45 minutes at 20°C.

Stopgap fast track 30 is suitable for use over a wide range of subfloor types including stopgap waterproof surface membranes, sand/cement screed, concrete, calcium sulphate (e.g. anhydrite), granolithic, terrazzo, epoxy and polyurethane resins, ceramic and quarry tiles.

A 25kg bag of Stopgap fast track 30 powder mixed with 4 litres of clean water will cover approximately 5.6m² at a thickness of 2mm


Gauging LiquidWater
Subfloor TypeAbsorbent and Non-Absorbent
TraffickingLight to Heavy Duty

Bag Sizes

16 kg bag


Standard mix – Add 4 litres of clean water into a mixing bucket and gradually add all the powder whilst stirring with a power whisk fitted in an electric drill until a smooth creamy lump free consistency is achieved. The material should be mixed for a minimum of 2 minutes.

Area Coverage Per Unit

When mixed with 4 litres of clean water.

5.6m² at a thickness of 2mm

2.2m² at a thickness of 5mm

1.1m² at a thickness of 10mm

Note: Coverage rates will depend on the condition and
absorbency of the subfloor.


It is essential to prime all surfaces.

Absorbent surfaces – Prime with dilute Stopgap P131 to prevent rapid drying of the underlayment. For dry (<75% RH) and suitably prepared anhydrite screeds use neat Stopgap P121.

Non-absorbent surfaces – such as flat firmly bonded minimal adhesive residues, terrazzo, quarry tiles and waterproof surface membranes should be primed with neat Stopgap P131 to ensure that good adhesion is obtained between the underlayment and substrate.


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Latest Reviews

Based on 268 reviews
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    Very happy with the tiles, they have now been layed and look stunning

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  3. Jimmy (store manager)

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    Highly recommend this company spoke to Brad on the phone first for a bit of advice and he really knows his stuff, Answered the phone straight away and all was delivered when i needed it

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  4. Steven N.

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  5. Steven N.

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    First class service. Quick delivery and excellent price.

    (0) (0)
    • FloortoyourDoor (store manager)

      Hi Steven

      We really appreciate you taking time out of your day to leave us such great feedback, I will pass this on to all the Floortoyourdoor team

      Many Thanks Paul

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