Cornerstone Powder Fine Filler is a breathable fast-setting natural cement and lime fine surface filler for small cracks and blemishes. Suitable for internal or external use. Available in 1kg and 4kg.
Price range: £6.89 through £14.31
Cornerstone Powder Fine Filler is a breathable fast-setting natural cement and lime fine surface filler for small cracks and blemishes. Suitable for internal or external use. Available
in 1kg and 4kg.
Cornerstone Powder Fine Surface Filler is a dry, ready-mixed natural cement and lime filler designed for fast setting and early sanding on lime or cement backgrounds. Available in the colour tan.
Manufactured by Cornerstone using 100% pure natural cement and lime and conservation- appropriate additives to create a breathable fine surface filler for lime walls and ceilings.
Well-suited for lime plaster walls or ceilings with minor cracks or surface imperfections and can be painted once carbonation is complete.
Cornerstone Fine Surface Filler is suitable for cracks up to 8mm in diameter as long as the surface is not hollow or debonded. Once dry, the filler will present a light tan colour. Looking for a white filler? Explore Cornerstone Putty Fine Surface Filler. This dry powder needs clean, potable water added to it to be used as a filler.
To apply, ensure surfaces are clean and free of dust and other debris; if the crack is very fine, chase it out as required. Less absorbent dense backgrounds should require minimal to no dampening. Absorbent backgrounds will require sufficient dampening to prevent rapid drying.
Mix the required quantity of filler with clean potable water to achieve a slightly wetter than toothpaste-like consistency. Refrain from adding too much water and mix slowly to avoid creating dust.
Press the filler into the crack using a spatula or flat-edged trowel, moving along the fissure in a diagonal motion in both directions. Over-fill the area slightly. The set time is approximately 45-60 minutes, depending on the environmental temperature. Drying time will vary depending on the substrate absorbency but is approximately 1-2 hours. Once dry, sand the filler back level to the wall.
Lightly mist the filler 2-3 times daily for 2-3 days after application, but do not saturate.
Shrinkage should not occur unless applied to the highest suction substrates. If shrinkage does occur, re-apply the filler to any new cracks within 48 hours of application.
The filler will carbonate over time but stay alkaline at the surface for a minimum of 5 weeks.
Certain paints, such as mineral or modern synthetic polymer paints, will be incompatible until carbonation occurs. Painting with a limewash or lime paint should be viable within 1 week. If using a mineral or clay based paint, we would advise waiting 4 weeks before painting.
Consumption rates will change based on the amount and size of the cracks to be filled. On-site trials are advised for the best yield indication for your specific project. Supplied in 1kg and 5kg paper bags.
Do not use in temperatures below 5°C or above 30°C, or if freezing conditions are predicted within the following few weeks, including wind chill. Protect from adverse environmental conditions, including frost, rain, direct sunlight and drying winds.
See the Technical Data and Documentation section for detailed product information, application guidance, and datasheets. Always review any available documents before use. Each project is unique, always seek professional advice before undertaking a project.
Brand
Cornerstone
Always read any available datasheets and documentation before use.
Stock Quantities and Lead Times
Stock quantities and lead times are estimated and may differ or increase based on the order size and shipping method. If your timeline is sensitive, get in touch with the team.
Palletforce
Pallet orders with Palletforce Economy are typically dispatched from Cornish Lime within 1-2 business days, providing your item is in stock and not made-to-order. Once dispatched, Palletforce will deliver your order within 3-5 business days, depending on your location. Please ensure that your site can accommodate articulated lorries or similar-sized vehicles.
Local Delivery
The Cornish Lime team provides local delivery with a 18-tonne vehicle with a crane to assist with unloading. You will be contacted by phone to arrange delivery and ensure your site can accommodate our vehicle.
APC Parcel Courier
Orders shipped by APC parcel courier are typically shipped the next business day and arrive within 2-3 business days, providing your item is in stock and not made-to-order. APC will contact you via email with delivery information, and orders can be tracked on the APC website.
Premium or Expedited Service
For a premium or expedited delivery service, please get in touch to discuss if this option is available for your order.
For further information, see our delivery information page.
A small amount of pigment may be added to Cornerstone Powder Fine Surface Filler; however, results will vary, and the product’s natural colour may resurface over time, overriding the tint. Before committing to this adjustment, we advise setting samples and curing them using the same method planned for the final application. Keep in mind that
pigments can alter setting times, typically accelerating the process, so take extra care when preparing larger batches.
Generally, lime fillers can be painted just like other common household fillers. However, lime is alkaline and will remain so for at least a month or longer, which means certain paints will require the filler to reach carbonation before they are applied. Check the application guidance for your chosen product to ensure the filler has had a chance to carbonate before you paint.
If working with breathable lime plaster walls, it only makes sense to pair them with a breathable filler and a breathable paint. Which paint you choose depends on the durability you’re looking for, but Cornerstone Lime Paint or Beeck Maxil Pro Internal Mineral Paint are two great options.
Aftercare is quite simple but important step. Lightly mist spray the putty filler a few times day for 2-3 days after application. This lime filler shouldn’t experience shrinkage unless applied to the highest suction substrates. If this any cracks are found, re-apply the the material into any new cracks.
We always advise using a breathable lime filler for repairing cracks and imperfections on lime plastered walls. This helps to maintain the breathability of wall, especially when paired with a breathable paint.
Filling minor cracks, holes or imperfections in lime-plastered walls only requires a few steps. Generally speaking, this will include preparing the area, including removing any dust or debris, lightly dampening the area if your background is highly absorbent, and using a flat tool, such as a trowel, to apply and press the filler. Like lime plaster or mortar, a lime filler
will require aftercare. Always follow the application guidance of the specific product you select to use. See our range of lime plastering and rendering tools, including trowels of various sizes.
Keep this stored in covered and dry conditions, in unopened bags and clear from the ground. Always protect the bag from water and damp. Reseal part bags after opening if unused product is present. Use within 6 to 8 weeks of the manufacturing date.
Reviews
There are no reviews yet.