Interior Paints

Milk Paint is a powdered paint made from milk protein, lime, clay, and earth pigments such as ochre, umber, iron oxide, lampblack. Milk paint creates a matte, velvet, chalky finish that sticks to a majority of surfaces without priming or sanding. This product is made from 100% organic materials and is free of VOCs.

Mineral paints, like Romabio's EcoDomus, provide a great alternative to acrylic paints. They are toxin-free, odorless, asthma-free, and naturally mold-resistant. EcoDomus is available in Matte, Eggshell, and Satin finishes. EcoDomus is an extremely durable, high-performing, mineral paint. The matte paint is designed for interior use, and the eggshell and satin can be used both for interior and exterior wall and trim finishes. This product is also backed by a 20-year warranty against chipping, peeling, and flaking. Thirteen of Romabio's paints, including this one, are Cradle to Cradle Silver Certified. Titanium Dioxide is being used for pigmenting, the whiter the pigment, the more titanium dioxide.

Note: We will update the HPD once we received the renewed one. Manufacturer foresees early 2023 for renewal.

Mineral paints, like this one, provide a great alternative to acrylic paints and primers. They are toxin-free, odorless, asthma-free, and naturally mold-resistant. BioGrip is Romabio’s mineral primer. This primer is designed for interior and exterior use and works well on drywall, portland cement, cementitious siding, and stucco. In 2015, this product was verified by a third party to be free of the harmful ingredients on the International Living Future Institute’s Red List. Titanium Dioxide is being used for pigmenting, the whiter the pigment, the more titanium dioxide.

Note: We will update the HPD once we received the renewed one. Manufacturer foresees early 2023 for renewal.

Linseed oil paint offers a healthy, durable alternative to acrylic products. Ottosson’s product is manufactured at their facility in Genarp, Sweden, which was established in the late 1980s. The technique used in making their paints, however, dates back to the 16th century. Cold-pressed raw linseed oil and natural pigments are ground in a triple-cylinder mixer, incorporating the pigments evenly into the linseed oil. The result is a linseed oil paint that creates a breathable, easy to maintain surface that doesn’t peel or bubble up.

*NOTE: Ottosson Linseed Oil Paints contain zinc oxide, a natural fungicide. It adds hardness to the paint finish and is a necessary additive in several North American climates. Zinc requires a warning label due to potential aquatic toxicity under Swedish law. When disposed of responsibly and used as directed, it poses no threat to the health of humans or the environment

(as reported by Earth and Flax https://www.earthandflax.com/)

Graphenstone has updated traditional lime paint formulas with their product by adding graphene, a material made from carbon. Graphene lends the paint extreme strength, durability, and washability. Additionally, the use of lime creates a paint that is not only free of harmful substances, but one that also actively improves indoor air quality by absorbing toxics and CO2. The white interior and exterior paint have a Cradle to Cradle Gold certification.

This product meets HML's criteria for low embodied carbon in part because of its use of renewable energy and CO₂ absorbing ingredients. As the product is produced in Spain, shipping can negate it's low emission score.

*NOTE: Recently, researchers have raised health concerns about graphene. According to the manufacturer, Graphenstone uses Nano Fibers of Graphene (NFG), which has a larger structure that is not harmful to human health.

Clayworks clay plasters are blends of unfired clays mixed with natural minerals and pigments. They provide a 100% natural alternative for gypsum plaster and paint wall finishing. Clayworks clay plasters are non-toxic, avoid synthetic additives and emit zero VOCs or formaldehyde. They are free of heavy metals and can be composted.

The clay plasters help regulate indoor relative humidity and temperature, absorb toxics and odors, and are easily repaired. They are made in the UK and supplied in a dried form, ready to mix with water and apply with conventional plastering tools and skills. The BM-1 hazard on the HPD relates to respiratory protection. The clay plasters also contribute to WELL and LEED certifications.

Per Claywork's product-specific EPDs, this product meets HML's criteria for low embodied carbon.

AURO high grade Lime Paint No. 344 is a breathable and opaque mineral based paint. It has no VOCs or synthetic additives. The mixture is primarily water and slaked lime. Titanium Dioxide is used for pigmenting. AURO consistently uses natural materials and discloses 100% of their ingredients on their website's Raw Materials Guide. This includes what the ingredients are typically used for, as well as where they are sourced from.

The Ecoprocote DuraSoy ONE Paint + Primer by Eco Safety Products is a dual water-based and acrylic interior/ exterior paint and primer. The product is VOC-free, APE and NPE-free, non-toxic, and formulated by crosslinking solvent free acrylic with biobased emulsion. The bonding technology provides stain resistance for the protection of stucco, plaster, wood, drywall and concrete. DuraSoy ONE Paint + Primer has been screened to contain no PFAS or PFC's, CDPH VOC Emissions Certified, and qualifies for WELL and LEED. The product is biopreferred certified. Titanium Dioxide is being used for pigmenting, the whiter the pigment, the more titanium dioxide.

Mineral paints provide a healthier alternative to acrylic paints and primers as it is made from Potassium Silicate. They avoid asthmagens, are odorless, and are naturally mold-resistant. Keim Mineral Silica Paint has low to no VOCs. It is made from natural ingredients. This product is NaturePlus certified and has Cradle2Cradle Material Health Gold certification. The Innostar Line is a matte, scrub-rate class A finish with a coverage efficiency that allows for one primer & one paint coat only. Titanium Dioxide is being used for pigmenting, the whiter the pigment, the more titanium dioxide.

Limeworks ' Ecologic Potassium Silicate Paint is a durable interior and exterior silicate dispersion paint made from silicates. It chemically bonds to masonry substrates such as brick, stone, mortar, stucco and cement through penetration and curing. It is VOC free, naturally mildew resistant and water repellent. It dries with an opaque and matte finish. Note: Methyl Methacrylate is used as a dispersion agent and as a binder at up to 10%. Currently, research is not conclusive; per manufacturer, there aren't viable alternatives at this time. HML is continuing to watch this component.

St. Astier's Lime Paint is composed of over 90% pure high calcium non-hydraulic hydrated lime. As it absorbs into the substrate, it penetrates the wall. It can be used on many materials, both interior and exterior. This product allows the surface to breathe. It is sold as a powder.

Leinos 660 interior paint is a flat/matte, breathable, water-based emulsion paint. It is cellulose based with zero VOCs. It can be applied on wallpaper, previously painted walls, drywall, pH-neutral plaster, interior concrete walls, plywood, masonite, OSB, and untreated wood. Note: The distributor referred to here, sells the product under the name Flat Interior White Cellulose Paint. This paint product goes as Naturharz-Dispersionsfarbe or Natural Resin Emulsion Paint in other countries.

Ecologic™ Waterglass by Limeworks is a paint primer and masonry consolidant. Potassium silicate is used as a binder which can fortify concrete, cement, brick, stucco, rock, and lime plaster. It is vapor permeable, and can be used as a thinner for silicate dispersion paints. Note: Methyl Methacrylate is used at up to 10%. Current research is not conclusive. HML is continuing to watch this component.

Classico Limewash is a slaked-lime ( lime mixed with water) paint with which you can achieve wash off effects on interior or exterior brick and masonry. After application, it calcifies to the brick, turning hard as a rock. It does not chip or crack due to allowing moisture to evaporate. The high pH of the paint makes it naturally mold-resistant. As a result, maintenance is minimal. The application is done by brushing the paint on the wetted surface and creating the patina effect by hosing spots off the wall.

Limestrong's Artisan lime plasters are a healthier alternative to traditional wall finishes like paint. This plaster is made of lime, pumice, and a plant-based binder, all sourced from within the US. It is available in 3 finishes of varying levels of shine - Marble, Stone, and Sand. Limestrong uses natural pigments only and has created a palette of 98 colors using a combination of 8 naturally occurring minerals. These plasters are petrochemical and fragrance-free.

This mineral-based paint allows for an exceptionally durable bond between paint and substrate that can last for decades. Free of plasticizers, solvents, preservatives, and biocides, Alkemis does not off-gas and is conducive to a better indoor climate. Alkemis is C2C certified with a Material Health Gold ranking. The paint is a velvet-matte, scrub-rate class A finish.

Bauwerk Limewash Paint is a natural mineral paint, suitable for unsealed interior and exterior applications . This paint is solvent-free and has a VOC content of below 0.01 g/l. It actively supports surface breathability which regulates humidity in masonry structures and helps prevent flaking or peeling of surfaces. It is inherently antibacterial due to its high pH levels and is free from biocides, formaldehydes, and fungicides. The paint uses Titanium Dioxide and mineral earthen pigments as colourants. It is a Class A1 fireproof paint. 

The USHG Old World European Limewash is a natural, non-toxic stain suitable for porous surfaces like bare wood, plaster, and masonry. The formulation of slaked lime putty allows it to penetrate deeply into underlying materials and fine substrates. As a result, once cured, the limewash creates a surface that won't peel, is breathable, and allows vapor permeation. The Limewash uses 100% natural pigments.

BC Materials create a natural breathable plaster of clay, loam, sand and fibers. Different types of sand and clay will determine the color and texture of the plaster. The ingredients are sourced from urban sites in a 250km radius. Léém plaster has been tested to assure it is free of pollution such as: PCB,PFC, asbestos, lead, heavy metals, hydrocarbons, mineral oils, VOCs, flame retardants, phthalates and isocyanates and do not emit any harmful substances.

Baumit Kalkputz Klima RK39 is a naturally white plaster made from hydraulic lime. It is free of cement or petrochemically based ingredients and microplastics. This plaster can be used as plaster and mortar. It is suitable for both manual and machine application and is non-flammable.

Keim Tisenza interior paint has the same positive qualities as Innostar - it is mineral-based, is C2C Material Health Gold certified - with the added benefit of a formula that excludes titanium dioxide, the nanoparticles of which are considered an occupational carcinogen according to OSHA. Available in the EU in whites and shades, this matte paint has a Class 1 wet abrasion resistance.

Kreidezeit Clay Paint is a natural matte paint suitable for absorbent indoor renders including wallpaper. It is free from preservatives and synthetic resin binders and comes in smooth and textured options. This clay paint is made in Germany and primarily available in the EU. Tockay Inc. is the North American distributor located in Canada.

The Auro No. 331 High-grade Clay Paint is a water-based clay and mineral paint for interior walls. It has a moisture regulating effect and is highly breathable. It meets the EU EcoLabel, Indoor Air Comfort Gold, Nordic Swan, WELL, BREEAM, and LEED standards. It is free from preservatives. The paint comes in white only, natural pigments can be added.

Made of clays and natural pigments, BioShield Clay Paints can be applied to interior surfaces including masonry, gypsum, plasters, and previously painted surfaces. Clay Paints have moisture regulating and odor reducing properties and they provide optimum breathability. BioShield Clay Paints are matte, low-odor, non-toxic, no-VOC. They are free from acrylic copolymers, formaldehyde, ammonia, ethylene glycol, solvents or toxic heavy metals. The preservative, active ingredients of 1.2-Benzisothiazol-3(2H)-on and 2-Methyl-2H-isathiazol-3-on, is below EU regulation limits and is only in the product to prevent the production equipment from hosting bacteria.