Stopgap F78 Liquid DPM 6/18KG 1-Part Moisture Barrier
Waterproof Blue Membrane
F. Ball STOPGAP F78 is a rapid-drying, one-component waterproof surface membrane for controlling residual construction moisture in absorbent subfloors. Applied in two coats, it can isolate moisture readings up to 95% RH and allows early installation of floorcoverings. Solvent-free, ready to use and blue-pigmented for easy coverage control, F78 is ideal for fast-track residential and commercial flooring projects.
- Product Code: F78
- Availability: In Stock Delivery: 1-3 days
- Brand: Ball
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from £123.72/bottle
- Ex. VAT: from £103.10/bottle
Available Options
| Specification | |
| Open time | Approx. 15–20 Minutes Between Coats |
| Type | One-Component Waterproof Surface Membrane |
| Solvent Free | Yes |
| Drying time | Approx. 30 Minutes After Second Coat |
| Ready to Use | Yes |
| Suitable Subfloors | Absorbent Cementitious Subfloors |
| Waterproof | Yes |
| Size | 6kg / 18kg |
| General info | |
| Condition | New |
| Est. delivery | in 1-3 days |
| Categories: | Flooring Accessories | Adhesives & Primers | | |
| Extras | |
| 1 order = 1 tree planted Shop now! madeofwood.uk/ecologi |
Frequently Asked Questions (FAQs)
How soon can flooring be installed after using this damp proof membrane?
Floor coverings can typically be laid shortly after application, as the product is designed to allow early installation once it has dried.
Is this product suitable for use on all types of subfloors?
It is formulated for common subfloor materials; consult the technical guide for specific compatibility.
What visual indicator helps ensure the membrane has been applied evenly?
The product's distinctive colour assists users in checking for consistent coverage across the surface.
Can this membrane be used in areas prone to high moisture levels?
Yes, it offers robust moisture protection, making it suitable for environments with residual damp.
Is any special mixing or preparation required before application?
No, the product is supplied ready to use, simplifying preparation and saving time on site.



