Stopgap 800 - Smoothing Compound

STOPGAP 800 is a self-smoothing commercial and industrial grade floor compound used for upgrading and renovating new and existing internal floors in light to heavy duty applications where floor coverings are not required to be installed. It is suitable for use in areas such as storerooms, post rooms, workshops, corridors, warehouses etc. STOPGAP 800 is grey in colour.

STOPGAP 800 is dimensionally stable and is supplied as a pre-blended dry powder, which is designed for application between 5-15mm. It is protein-free which allows it to be used in biologically sensitive areas.

STOPGAP 800 is for application over a wide range of subfloor types including sand / cement screed, concrete, granolithic, terrazzo, epoxy and polyurethane resins and STOPGAP waterproof surface membranes.

In areas where water or other fluids may come into direct contact with the cured material, the surface must be sealed with STOPGAP SEAL. This also helps to protect the floor surface and ease maintenance by reducing the adhesion of dirt and other debris.

STOPGAP 800 can also be pump applied.

COVERAGE

A 25kg bag of STOPGAP 800 mixed with 4.75 litres of clean water will cover approximately 3.0 m² at a thickness of 5 mm.

TECHINCAL INFORMATION

• EN 13813 Class - CT-C35-F10-AR0.5
• Abrasion Resistance (EN 13892-4) - AR0.5
• Slip Resistance (without seal) Dry - 72 (EN 13036-4)Wet - 40
• Working Time@ 20°C - 20 - 30 minutes
• Walk on hardness time @ 20°C - 90 minutes
• Time to traffic: Foot traffic - 3 hours Light traffic - 24 hours Heavy traffic - 3 days
• Compressive Strength N/mm2 (EN13892-2) 1 Day - >20.0, 7 Days - >30.0, 28 Days - >35.0
• Flexural Strength N/mm2 (EN13892-2) 1 Day - >4.0, 7 Days - >7.0, 28 Days - >10.0
• Flow properties using 30mm ø x 50mm flow ring (EN 12706) - 120 - 140 mm
• Consumption per mm thickness - 1.69kg / m2
• Application thickness - 5 - 15mm

SURFACE PREPARATION

Floor surfaces must be suitably prepared: sound, dry (<75%RH) and free from contaminants that may prevent adhesion. Use STYCCOCLEAN C140 for removing grease, oil, polish soap etc. from non-absorbent substrates. Concrete and sand/cement screeds must be fully cured and any laitance or surface treatments must be removed.The temperature of the floor must be maintained above 10°C throughout the application and drying of the compound. Underfloor heating must be off for at least 48 hours before, during and after application.

PRIMING - IT IS ESSENTIAL TO PRIME ALL SURFACES Absorbent surfaces – Prime with a minimum 2 coats of dilute STOPGAP P131 to prevent uncontrolled rapid drying of the compound which may lead to surface pin holing, poor flow characteristics, surface imperfections and colour variation. Very absorbent surfaces may need additional coats of primer. If applying over STOPGAP 600, this should be done within 24 hours and the surface should first be primed with a dilute coat of primer followed by a neat coat.

Non-absorbent surfaces - such as terrazzo, quarry tiles and STOPGAP waterproof surface membranes should be primed with neat STOPGAP P141.

Apply the primer using a soft brush and do not extend the stated coverage. Site and substrate conditions vary, the chosen priming system should be evaluated over a trial area to ensure an optimum surface finish.

Alternatively, STOPGAP F77 may be used as a priming system in conjunction with a kiln dried grit 0.7-1.2mm:

Damp subfloors: Install STOPGAP F77 waterproof surface membrane as directed and within 24 hours apply a second coat of STOPGAP F77. Whilst still wet, fully blind the surface with the grit and allow to cure before vacuuming away all loose grit and installing STOPGAP 800.

Dry, absorbent subfloors: Apply one coat of STOPGAP F77 and whilst still wet, fully blind the surface with the grit and allow to cure before vacuuming away all loose grit and installing STOPGAP 800.

MIXING

Add 4.75 litres of clean water into a STOPGAP 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.

WATER ADDITION

4.5 litres minimum - 5.0 litres maximum per 25kg depending on consistency and flow properties required. Do not exceed 5.0 litres of water per 25kg bag.