Stopgap 300 HD Heavy-Duty Floor Smoothing Compound & Wearing Surface

STOPGAP 300 HD – Heavy-Duty Floor Smoothing Compound & Wearing Surface

STOPGAP 300 HD is a fast-drying, self-levelling floor smoothing compound designed for preparing absorbent and non-absorbent subfloors in light to heavy-duty environments. Ideal for commercial and industrial flooring projects, this heavy-duty levelling compound delivers excellent flow, high compressive strength, and a smooth finish ready for LVT, vinyl, carpet, resin coatings, and other floorcoverings.

Suitable for use as both a smoothing compound and wearing surface, STOPGAP 300 HD is perfect for warehouses, workshops, corridors, storerooms, and high-traffic commercial areas. With rapid drying properties, it is walkable in approximately 90 minutes and can receive floorcoverings from around 6 hours, helping flooring contractors complete projects quickly and efficiently.

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Key Features

• Heavy-duty self-levelling smoothing compound
• Suitable for commercial & industrial flooring applications
• Walk on from approx. 90 minutes
• Install floorcoverings from approx. 6 hours on absorbent surfaces
• Application thickness: 2mm – 20mm
• Can be used as a wearing surface for exposed floors
• Excellent self-levelling and smoothing properties
• Suitable for hand or pump application
• Protein-free & low odour – ideal for hospitals and sensitive areas
• Suitable for concrete, screeds, terrazzo, asphalt, tiles & existing residues
• Coverage: approx. 5m² at 3mm thickness per 25kg bag

How to mix and apply Stopgap 300 - Heavy-Duty Floor Smoothing Compound