{"id":214993,"date":"2026-07-05T07:00:15","date_gmt":"2026-07-05T11:00:15","guid":{"rendered":"https:\/\/www.constructionspecifier.com\/?p=214993"},"modified":"2026-07-02T14:10:40","modified_gmt":"2026-07-02T18:10:40","slug":"rethinking-titanium-dioxide-in-coatings","status":"publish","type":"post","link":"https:\/\/www.constructionspecifier.com\/rethinking-titanium-dioxide-in-coatings\/","title":{"rendered":"Rethinking titanium dioxide in coatings"},"content":{"rendered":"
\"A<\/a>
Photo \u00a9Tuulum\/courtesy Dreamstime.com<\/em><\/figcaption><\/figure>\n

The coatings industry and its suppliers readily acknowledge the severe carbon footprint associated with titanium dioxide (TiO2<\/sub>) production. However, as their primary customer, the new construction and maintenance market shares an equal measure of this environmental responsibility. This interconnectedness has inadvertently driven both sectors into a precarious situation. But is there a viable escape route?<\/p>\n

Architects, developers, and builders prioritize efficiency in their daily operations, generating business, managing resources, and serving clients. Consequently, they often overlook the profound impact of a single raw material, TiO2<\/sub>, on their ecological footprint, as highlighted by the Sustainable Paint Index.1<\/sup> This impact extends beyond the coatings to encompass the labor and time involved in their extraction, production, supply, and application, regardless of economic conditions.<\/p>\n

Since 1921, TiO2<\/sub> remains the immutable material in paints and coatings. This naturally occurring, finite resource, provides unparalleled opacity\u2014the essential whiteness and refractive index that defines paint\u2019s hiding power. Yet, this very utility creates a paradox, contributing to both economic and environmental burdens through high production costs and an out-of-control carbon footprint.<\/p>\n

Akzo Nobel\u2019s 2017 exploration of a world without it revealed the challenge: significantly more coats (beyond the typical 2.5\u20133 using TiO2<\/sub>) were required using zinc (the average using zinc goes up to five coats), the next best alternative. Bound by traditional formulation design that struggles with diminishing returns, chemists can only increase its content so much before the cost-benefit ratio becomes unfeasible.<\/p>\n

As the largest consumer of global paints and coatings, the construction and maintenance market accounts for more than 66 percent of the industry\u2019s total life-cycle waste, emissions, and carbon profile of society at large. While minimizing costs for better margins is a constant driver, it should ideally align with environmental considerations. However, aligning cost-saving measures with environmental considerations often means sacrificing either performance or maintaining affordable pricing.<\/p>\n

The sustainability conversation once centered on volatile organic compound (VOC) limits\u2014a concept that took a generation to permeate the construction industry, yet yielded limited environmental benefit despite its relevance to human health. Today, the focus has shifted to CO2 footprint and waste reduction, resonating with an increasingly informed consumer base that demands tangible and quantifiable environmental action from the products they purchase. This directly influences how the construction sector procures and uses coatings for its clients.<\/p>\n

In today\u2019s landscape, costs are inextricably linked to carbon emissions and waste footprint as much as to supply-side economics. Both are fundamentally determined by the number of coats or gallons required and the opacity or hiding power provided by TiO2<\/sub>. Controlling the number of coats or gallons means controlling both economic and environmental costs. Achieving this, however, requires gaining control over this pivotal material.<\/p>\n

\"A<\/a>
This naturally occurring, finite resource, provides unparalleled opacity\u2014the essential whiteness and refractive index that defines paint\u2019s powerful hiding power. Photo \u00a9Norman Pogson\/courtesy Dreamstime.com<\/em><\/figcaption><\/figure>\n

TiO2<\/sub>: The linchpin of sustainability in construction coatings<\/h2>\n

A groundbreaking sustainable construction technology, leveraging advanced light scattering and optimized TiO\u2082 usage, offers a novel universal coatings system for diverse substrates and market segments\u2014potentially resolving a critical industry dilemma. This method, termed \u201cSelf-Build Technology,\u201d maximizes the efficiency of paint\u2019s core function: opacity, upon which all other performance benefits depend.<\/p>\n

Insufficient opacity detrimentally affects peripheral benefits such as UV resistance, adhesion, washability, moisture resistance, color retention, and gloss level. The need to \u201cpaint another coat\u201d is more than just a minor inconvenience; it reflects fundamental limitations in how coatings perform in real-world conditions. Application variables such as user skill, tools, and the number of coats applied directly influence how well a coating adheres, how durable it is, and how consistently it delivers color or gloss. No other function is more universally tied to performance, cost, and reliability across all markets and coating sectors than opacity.<\/p>\n

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Self-Build Technology maximizes the efficiency of paint\u2019s core function: opacity, upon which all other performance benefits depend. Photo \u00a9Ingvald Kaldhussater\/courtesy Dreamstime.com<\/em><\/figcaption><\/figure>\n

Interestingly, while the industry acknowledges the challenge of optimizing TiO\u2082, it often overlooks its core value because traditional formulations cannot address opacity directly. This innovation changes that. Through a unique \u201cmechanism of action,\u201d which allows paint molecules to self-assemble in real time like Lego bricks during standard application, yielding equivalent performance from thinner film build thickness (and all other desired properties) of multiple coats from traditional coatings, but without the need of a primer or a second coat and with significantly greater durability. The technology uses \u201cthin film building\u201d as it does not rely on heavy, thick coats to function, but the film build result is equivalent to multiple coats and not thinner.<\/p>\n

The underlying concept poses a simple yet profound question: \u201cIf conclusive opacity, the visual queue to stop painting, is currently achieved through multiple coats applied sequentially over time, how can these layers, and therefore the complete result, be achieved instantaneously during a single application?\u201d<\/p>\n

This idea draws inspiration from the optical behavior of sodium chloride (NaCl). In its static form, NaCl is transparent. However, when many grains are clustered together (mechanism of action), they become opaque, effectively scattering light. Remarkably, although TiO2<\/sub> boasts a significantly higher refractive index (2.61 versus 1.54 for NaCl), traditional coatings still require multiple layers to achieve complete opacity.<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
Category\u00a0\u00a0\u00a0 <\/em><\/strong><\/td>\nCurrent system: Uncontrollable chain reaction in economy and environment<\/em><\/strong><\/td>\nProposed system: Total control through reduced consumption<\/em><\/strong><\/td>\n<\/tr>\n
System characteristics<\/td>\nMaximum waste recycling infrastructure and CO2e\/GHG emission generation.<\/p>\n

 <\/p>\n

No control of the system using the second and third \u201cR\u201d (reuse\/recycle).<\/td>\n

Total control with 66 percent reduced TiO2<\/sub> means 66 percent reduced consumption through the supply
\nchain and maximum reduced Scope
\n1, 2, 3 emissions.Achieved through the principle
\nof the first \u201cR\u201d (reduce).<\/td>\n<\/tr>\n
Coats and coverage<\/td>\nTwo-and-a-half to three coats average. The general measure is one coat to a gallon, which averages 33 m\u00b2 (350 sf) of paintable space. The average DIY paint job is a purchase of 12 L (3 gal) or 100 m\u00b2 (1,076 sf).<\/td>\nEliminating the primer and second coat through Self-Build Technology.<\/td>\n<\/tr>\n
Raw material stage<\/td>\nRaw material suppliers extract and supply inherently limiting natural resources in opacity, such as TiO2<\/sub> with no synthetic counterpart, initiating excessive life-cycle waste and CO2e\/GHG emissions.<\/td>\nReduce TiO2<\/sub> extraction, which reduces all other material inputs through production and supply through to the end user.<\/td>\n<\/tr>\n
Manufacturing stage<\/td>\nManufacturers overproduce due to opacity limitations, compounding waste, and CO2e\/GHG per gallon.<\/td>\nOptimize opacity, the core utility
\nof coatings.<\/td>\n<\/tr>\n
Regulatory and association impact<\/td>\nCoatings associations charge
\n\u201ceco-taxes\u201d to fund fledgling recycling infrastructure to manage their image, further compounding life-cycle impacts as, ironically, recycling requires waste generation to be successful.<\/td>\n		Not directly applicable in proposed list, but implicitly addressed through reduction strategy.<\/td>\n<\/tr>\n
Users\/construction\/maintenance stage<\/td>\nUsers\/construction\/maintenance generate significant annual
\n\u201cpost-production and use waste\u201d
\n(16 percent of production\/860M litres
\nin North America), CO2e\/GHG per gallon at this stage hits 18 kg (40 lb).<\/td>\n		To control the number of coats
\nis to control costs, minimizing labour,
\ntime, and materials.<\/td>\n<\/tr>\n
Recycling and end-of-life<\/td>\nPaint and product care recapture an insignificant 0.3 percent of annual waste for reuse. No demand for recycled products leads to repeated costly processes and eventual landfill disposal, continuously compounding waste and CO2e\/GHG emissions.<\/td>\nControl of eco-effects\u2014maximum possible prevented CO2e\/wastes means detaching growth from footprint.<\/td>\n<\/tr>\n
Overall outcome<\/td>\nExcessive life-cycle waste, carbon footprint, and inefficiency throughout the value chain.<\/td>\nThis minimizes all waste across the supply\/value chain: raw material extraction, finished goods production, containers, transport, energy, water, CO2e\/GHG emissions, Scope 1,2,3, and recycling infrastructure limitations.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

This innovative approach reaches opacity through thin film building, where paint molecules adhere to the substrate and each other, capitalizing on refined surface tension principles. This is achieved during production through a controlled shearing effect, \u201cmagnetizing\u201d paint molecules through specific treatment and sequencing of raw materials within each chemical component. Despite this distinctive outcome, the system uses 90 percent of the same raw materials and standard equipment manufacturers use globally. This method yields three times the opacity of traditional architectural construction coatings, using two-thirds less TiO2<\/sub>.<\/p>\n

While traditional coatings excel at surface adhesion, they often shift and move before drying, leading to an incomplete finish that necessitates multiple layers\/gallons to achieve opacity and, subsequently, all other desired properties, such as sheen, texture, color, and durability. This reliance on layering is the established hallmark. Critically, opacity remains the only uncontrollable aspect of a coating\u2019s performance, as current techniques and methods in formulation cannot tame it.<\/p>\n

With TiO2<\/sub> emerging as an environmental concern, its reduction seems inevitable. The EU is considering bans, while some producers, such as Chemours, acknowledge its systemic impact, subtly encouraging reduced consumption. Resin suppliers, such as Arkema, are also exploring long-term alternatives through stakeholder conferences. Meanwhile, global trade dynamics, such as China\u2019s anti-dumping tariffs, add further instability that spirals a global industry and customer base.<\/p>\n

\"White<\/a>
Current standards inadvertently position titanium dioxide (TiO2) as an adversary when it could become a valuable ally, enabling genuine control over the environmental footprint while encouraging economic growth. Photo \u00a9Luchschen\/courtesy Dreamstime.com<\/em><\/figcaption><\/figure>\n

Publicly, this signals that simply banning TiO2<\/sub> without a viable alternative would likely exacerbate the problem. This would lead to increased material consumption to compensate for reduced opacity, further burdening the production infrastructure and supply chain. Without a new formulation paradigm, manufacturers will continue to purchase more TiO2<\/sub> and pass their limitations onto construction and its customers, perpetuating a less sustainable system that affects national and global markets.<\/p>\n

To remain competitive, construction requires a more responsible approach to both business and the environment. Current standards inadvertently position TiO2<\/sub> as an adversary when it could become a valuable ally, enabling genuine control over the environmental footprint while encouraging economic growth.<\/p>\n

The implications of construction gaining control over this systemic issue extend far beyond a single raw material. By effectively optimizing TiO2<\/sub> use and consumption, the industry can inherently control the demand for all material inputs to serve its function. Just as planets orbit the sun, peripheral materials such as additives, resins, water, fillers, energy, transport, and packaging will naturally reduce to their minimum required levels. This is the profound power of this control: the ability to shrink supply chain consumption across the board and prevent maximum life-cycle waste from the outset. This represents the only path to sustainability when using all coatings.<\/p>\n

Achieving this goal allows the coatings industry to offer the construction sector a significantly minimized eco-footprint as a tangible benefit, nurturing a new era of environmental stewardship. Customers should not be expected to pay a premium for eco-friendliness; rather, the responsibility lies in innovating apex solutions that deliver environmental benefits while increasing economic viability. This genuine integration is the only way forward and acts as a double incentive model to perpetuate its success.<\/p>\n

\"A<\/a>
As the largest consumer of global paints and coatings, the construction and maintenance market accounts for more than 66 percent of the industry\u2019s total life-cycle waste, emissions, and carbon profile of society at large. Photo \u00a9Noppon Kobpimai\/courtesy Dreamstime.com<\/em><\/figcaption><\/figure>\n

Echoing the sustainability messaging of leading manufacturers, who aim to \u201cdetach growth from environmental footprint,\u201d the reality remains that the most environmentally friendly coating is used least. However, the current global market lacks a readily available paint product portfolio that supports this aspiration.<\/p>\n

This concept aligns with the principles of extended producer responsibility systems (EPRS), initially conceived by governments to curb post-consumer waste. While EPRS evolved into a manufacturer-led initiative funded by consumer eco-fees for recycling Self-Build Technology and its control over TiO2<\/sub> and, therefore, the entire footprint of the construction industry can revive a somewhat forgotten inclination to control waste at the source\u2014from the point of raw material extraction.<\/p>\n

A paradigm shift: From uncontrolled waste to total control<\/h2>\n

The following illustrates the fundamental difference between the current life-cycle system and this proposed novel system, where the construction sector leverages its influence to drive real change in coatings consumption back up the chain:<\/p>\n

Current system: Uncontrollable chain reaction in the economy and the environment<\/h5>\n