
Allbäck Zinc Oxide Additive
Description
Zinc Oxide is known to have mildew retarding properties and is especially useful in humid or wet climates. It is generally recommended to add 20% Zinc Oxide when using Allbäck's linseed oil paint outdoors. Add 200 mL of Zinc Oxide Additive to every litre of paint and for all coats. This is a good general rule for most projects but ultimately depends on project conditions.
To be effective, it is recommended to have at least 10% Zinc Oxide, but adding too much Zinc can potentially lighten the colour. When adding Zinc Oxide to your paint, start by adding 10% and work up from there.
Allbäck Zinc Oxide as additive gives full control to the painter over how much to add to the paint to meet the unique demands of each project. For example, in arid climates or in most indoor environments, little to no Zinc Oxide may be necessary. Alternatively, in climates that are especially favourable to microbe growth, more Zinc Oxide, even up to 35%, can increase resistance but may lighten the colour of the paint.
Zinc Oxide can also have a mild siccative effect, meaning that the paint can dry (oxidize) a little faster and become a little harder. This can be useful when painting floors or surfaces that are exposed to a lot of wear.
Allbäck Zinc Oxide Additive is made from zinc oxide powder, dispersed in Allbäck Purified Boiled Linseed Oil, so adding it to the paint is very easy.
Notes on preventing mould & mildew
Mould and mildew can occur on all kinds of surfaces where the conditions for growth are favourable. When planning a strategy to avoid the occurence of microbes on a building surface, we must think about how to maximize the impact of our efforts. Zinc oxide and other paint chemistry is one component, but we must also consider other variables that can have an even greater impact:
- The Environment: Is the relative humidity high? Are surfaces exposed to the sun? Is there good air flow around the building? Are there trees, shrubs, and other vegetation? Are there pollens or other foods for microbes on the surface?
- The Construction: Do the elements of the building shed water adequately? Are there gutters and downspouts installed? Are horizontal surfaces such as window sills sloped away from the building? Are cracks, holes, and joints sealed?
- Paint Chemistry: Is the surface well cleaned? Is there zinc oxide in the paint? Is there an adequate paint film to seal the surface?
Notes on cost
Adding Zinc Oxide to the linseed oil paint does not increase its overall cost per area. For example, adding 20% zinc to the paint gives you 20% more paint and also covers 20% more surface.
About Allbäck Linseed Oil Paint
- Paint and protect exterior and interior surfaces without solvents.
- Lasts for decades on wood, steel, iron, and plastic.
- For masonry surfaces such as concrete, use Allbäck's Emulsion technique.
- Add Allbäck Zinc Oxide Additive when painting outdoors or in humid areas.
Benefits
- Made for craftspeople by craftspeople for more than 40 years.
- Tested and well documented.
- Made with the highest quality ingredients and without solvents.
- Penetrate, protect, and nourish wood from the inside out.
- Superior coverage, longevity, and value.
- Paint in direct sunlight, and store at any temperature.
- Easy to maintain over time with Boiled Linseed Oil or Linseed Oil Wax.
- Clean up with Linseed Soap and water.
- For the health of the building, the craftsperson, and the environment.
Technical Details
- Binder: Allbäck purified, boiled, and well aged linseed oil.
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Pigment: Zinc oxide.
- Drier: Manganese Siccative.
- Thinner: If necessary, thin with max. 5% Allbäck Purified Boiled Linseed Oil. The paint is solvent-free and must never be thinned with solvents.
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Volume solids: 100% by volume. Nothing evaporates from the paint.
VOCs: <5mg / L, natural oil only. - Sheen: Variations in sheen may occur if absorption and/or application is uneven. This will even out over time. During application, the paint builds to an even soft gloss with more coats. Over time, and with exposure, the paint will become matte and stay that way for most of its lifecycle. Maintain the surface and restore the original sheen with Boiled Linseed Oil or Linseed Oil Wax.
- Extra shining: Achieve an even higher shine and harder surface with Linseed Extra Shining Oil. Add 5-10% to the paint. Regulate thickness with Boiled Linseed Oil.
- Substrate: The paint may be used on all clean, dry surfaces, exterior and interior. Max moisture content 14%. May be applied in direct sunlight. Impregnate dry wood and cracks with Raw Linseed Oil before painting. Add 10-20% Zinc Oxide Additive when painting outdoors.
- Application: Stir the paint thoroughly to ensure all the pigments are well incorporated. Brush, roll, or spray (high pressure, small nozzle). Thickness approximately 100 microns per coat, using Wet Film Thickness Gauge.
- Coverage: Average 15 - 20 m² per litre (161 - 215 sqft per litre), depending on the surface. Each coat should cover the surface completely and be painted in even layers. Apply the same paint in at least 3 coats on new surfaces, 4 coats on particularly exposed surfaces. Very absorbent surfaces may take more paint. Consider impregnation with Raw Linseed Oil to regulate very absorbent surfaces. Test with a small quantity of paint, or try our Linseed Oil Paint Intro Kit.
- Cleaning: Allbäck Linseed Soap and water or other neutral cleaning agent. For surfaces, hands, brushes, and tools. Rinse well and allow to dry.
- Storage: Store brushes suspended in Raw Linseed Oil.
- Keeping: May be kept indefinitely, even below freezing.
- Drying time: Approx. 24 hours at room temperature, with good ventilation, and low humidity (≥50% RH).
- Transport: No restrictions - not hazardous goods.
Documents
Technical Documents
- Little Handbook About Allbäck Linseed Oil Paint
- Le Petit livre de la peinture à l'huile de lin Allbäck
Companion Guides by Sage Restoration
- General Guidelines for Allbäck Linseed Oil Paint
- Conditions générales d'utilisation de la peinture à l'huile de lin Allbäck
Safety Data Sheets
