Description
Preparing an interior wall before painting? Boysen Masonry Putty B7311 is for small surface defects in a compatible wall-painting system. This listing supplies one 1L container.
At a glance
| Type / use | Water-based acrylic putty · interior concrete and plaster |
|---|---|
| Defect size | Hairline cracks and imperfections below 1 mm |
| Application / cleanup | Putty knife / water |
| Thinning | Use as supplied; do not thin |
| Touch dry / recoat | 30 minutes / 2 hours at 25°C and 50% RH |
Coverage for planning
Boysen publishes a 4L reference of 10–12 m² for full putty or 25 m² for spot putty. Dividing by four gives a calculated 1L estimate of 2.5–3 m² for full putty or about 6.25 m² for spot putty. Actual usage depends on the surface and how much filling is needed; these are estimates, not guaranteed yields.
Where it fits in the paint list
The specified system uses B701 primer, B7311 interior putty and a compatible water-based topcoat. Count the filler separately from your wall paint when budgeting. This item should be selected for the defect and location rather than simply because the wall will be painted white.
Check the wall first
Send a clear photo with a ruler or other size reference beside the damaged area. Tell us whether you are filling scattered marks or skim-coating a larger area, and include the existing primer and topcoat names. Larger or recurring cracks need the cause and repair method assessed before choosing filler. Putty knives, sandpaper, a sanding block and dust-removal tools can be quoted separately.
What is included
One 1L container of Boysen Masonry Putty B7311. Primers, putty, reducers and painting tools are separate purchases unless expressly listed in your order.
Photo and pack notes
The listing size is 1L. Gallery pictures include manufacturer family packaging references and illustrative project guides; the container artwork or size shown may differ from supplied stock. Check the code and pack size on the actual item. Tools shown are sold separately.
Technical reference: Boysen product data and painting guide. Follow the current container label for complete preparation, application and handling instructions.
Manufacturer-verified liquid specifications
Pack volume: 1 L. Boysen Masonry Putty B-7311 published density: approximately 1.55 kg/L (tolerance ±0.05 kg/L). Calculated paint/product content mass: approximately 1.55 kg. This figure excludes the container and shipping carton. It must not be confused with the separate provisional packed shipping estimate already shown below; actual gross parcel weight and dimensions still require verification.
Source: Boysen manufacturer technical data. Checked 12 October 2026.
Estimated packed shipping details
Provisional estimate: approximately 2.0 kg and 16 × 16 × 20 cm (length × width × height) for one packed 1L container. These figures describe the estimated parcel, not the paint-can dimensions. Actual packing may differ. Orders with multiple containers require a new packing quote. We confirm the delivery fee and courier availability before payment or dispatch.
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