Sustainability
Sustainable Finishes for Natural Wallcovering
How protective finishes and coatings can extend natural wallcovering lifespan without compromising sustainability — water-based vs solvent-based, UV protection, stain resistance and antimicrobial options.
Key Takeaways
- See detailed sections below.
What Finishes Are Available?
| Finish Type | Purpose | Sustainability |
|---|---|---|
| Water-based stain repellent | Protects against spills and marks | Low-VOC, eco-friendly |
| UV-protective coating | Reduces sun fading | Water-based options available |
| Antimicrobial treatment | Resists mold and bacteria | Silver-ion = sustainable; check chemical type |
| Fire retardant | Improves ASTM E84 rating | Halogen-free options are eco-friendly |
| Solvent-based sealant | Maximum protection | High-VOC — avoid for green projects |
How Do You Choose the Right Finish?
- High-traffic commercial: Water-based stain repellent + UV protection — standard for hospitality
- Healthcare/wellness: Antimicrobial (silver-ion) + low-VOC stain protection
- Residential: Often unfinished — natural wallcovering's character shines without coating
- Museum/gallery: UV protection essential — prevents artwork-damaging off-gassing from walls
- Green-certified projects: Water-based only, verify GREENGUARD or equivalent certification for the coating itself
What Should You Avoid?
- Solvent-based coatings: High VOC, environmental impact — conflicts with LEED/WELL
- Thick polyurethane: Seals the fiber, eliminating breathability and natural texture feel
- Untested antimicrobials: Persistent chemicals (triclosan, PFAS) — check restricted substance lists
- Field-applied finishes without testing: Always test on a sample piece first — some coatings darken or discolor natural fiber
Frequently Asked Questions
Do natural wallcoverings come with protective finishes?
Some do. Many manufacturers offer optional stain-resistant or UV-protective coatings applied during production. Ask about available finish options when specifying — factory-applied finishes are more consistent than field-applied.
Will a protective coating change the texture?
Slightly. Most water-based coatings add a subtle sheen and marginally reduce tactile roughness. The effect is minimal with modern formulations. Always request a finished sample alongside an unfinished sample to compare.
Are antimicrobial treatments sustainable?
Some are — silver-ion and copper-based treatments are effective and have minimal environmental impact. Avoid treatments containing triclosan or other persistent chemicals. For WELL and LEED projects, verify the treatment is on approved substance lists.