The Health & Environmental Impact of Sanding & Polishing

What are VOCs and Why Do They Matter?

Volatile Organic Compounds (VOCs) are gases emitted from certain solids or liquids. In the context of floor finishes, these chemical compounds are released into the air during the application and curing process of the coating. While some VOCs are relatively harmless, many can have significant health and environmental consequences.

Health Concerns: High concentrations of VOCs indoors can be a concern for occupants, especially children, the elderly, and those with respiratory sensitivities like asthma. Short-term exposure can lead to:

• Headaches and dizziness

• Nausea

• Eye, nose, and throat irritation

• Respiratory issues and exacerbation of asthma

Prolonged or high-level exposure to certain VOCs has also been linked to more serious, long-term health issues, including kidney, liver, and central nervous system damage, and even certain cancers. The "off-gassing" of VOCs can continue for weeks or even months after a finish is applied, slowly releasing these chemicals into your indoor air.

Environmental Concerns: Beyond indoor air quality, VOCs contribute to outdoor air pollution and the formation of ground-level ozone, a major component of smog. They can also contribute to greenhouse gas emissions.

The Finish Line: VOCs in Different Timber Floor Finishes

The level of VOCs varies significantly between different types of timber floor finishes. Here's a breakdown:

1. Solvent-Based Polyurethane Finishes:

   • Concerns: These traditional finishes are known for having high levels of VOCs, often ranging from 300-850 grams per litre (g/Lt). They emit a strong odour during application, and off-gassing can persist for an extended period. Some solvent-based polyurethanes can contain harmful chemicals like toluene diisocyanate (TDI), which is a known respiratory sensitiser and can be particularly problematic for health. In many parts of Europe, these finishes are actually banned due to their health and environmental impact.

   • Recommendation: While they offer extreme durability, due to the significant health and environmental concerns, we generally recommend alternative options, especially for residential properties. If used, it is crucial to ensure maximum ventilation, and for occupants (especially children, pets, and those with respiratory issues) to vacate the premises for at least 7-14 days, or until the strong odour has completely dissipated.

2. Water-Based Polyurethane Finishes:

   • Benefits: These are our most recommended option for a balance of durability, aesthetics, and safety. Water-based polyurethanes use water as the primary solvent, drastically reducing VOC emissions (often below 90 g/Lt). This means significantly less odour, faster drying times, and a much healthier indoor environment post-application. Modern water-based formulations offer excellent wear resistance that rivals or even surpasses traditional solvent-based options, without the associated health risks. They also typically don't yellow over time, preserving the natural colour of your timber.

   • Recommendation: Highly recommended for both residential and commercial projects where indoor air quality and environmental responsibility are priorities. You can often remain in your home during or shortly after application, with good ventilation. Look for products with certifications like GREENGUARD Gold, which ensure strict chemical emission limits.

3. Natural Oils & Hardwax Oils:

   • Benefits: These finishes are generally very low in VOCs, often containing natural plant-based oils (like linseed, tung, or sunflower oil) and waxes. They penetrate the timber rather than forming a film on top, allowing the wood to breathe and showcasing its natural beauty with a matte or low-sheen finish. They are excellent for those seeking a truly eco-friendly timber floor finish and can often be spot-repaired without needing to re-sand the entire floor.

   • Concerns: While healthier, they may require more frequent maintenance coats than polyurethane and might not offer the same level of resistance to harsh chemicals or extreme wear in very high-traffic areas.

   • Recommendation: A fantastic choice for homeowners prioritising non-toxic floor finishes, a natural aesthetic, and the ability to easily maintain their floors. Ideal for living spaces and bedrooms where a softer, more organic feel is desired.

Our Commitment to Health and Environment

We here at MyFlooring we believe that beautiful floors shouldn't come at the expense of your health or the environment. That's why we prioritise the use of low VOC timber floor finishes and eco-friendly floor polishing solutions. Our expert team is highly trained in best practices for ventilation and safe application, ensuring minimal disruption and maximum safety for you and your family in Melbourne.

When you choose us for your timber floor restoration, you're choosing a partner committed to:

• Cleaner Indoor Air: By recommending and expertly applying water-based or natural oil finishes.

• Reduced Environmental Impact: Minimising chemical emissions and supporting sustainable practices.

• Your Peace of Mind: Providing transparent information and safe procedures.

Don't compromise on your health or the beauty of your floors. Contact us today to discuss the best, healthiest, and most environmentally conscious timber floor sanding and polishing options for your home. We're here to help you achieve stunning floors you can breathe easy around.