How does the manufacturer test the table’s resistance to stains from sunscreen or lotions?

Manufacturers employ rigorous, standardized testing protocols to evaluate a table's resistance to stains from personal care products like sunscreen and lotions. This process is a critical part of quality control for furniture destined for homes, outdoor spaces, and commercial settings.

The testing typically begins with the selection of specific, common chemical agents. Laboratories use formulated synthetic sweat or standardized solutions that mimic the chemical composition of popular sunscreens (containing oils, titanium dioxide, or zinc oxide) and moisturizing lotions (with emollients and fragrances). These are applied to sample table surfaces—whether laminate, veneer, solid wood, or coated metal—in controlled droplets.

A key phase is the "dwell time." The substance is left on the surface for a predetermined period, often 24 hours, under specific temperature and humidity conditions. This simulates real-world scenarios where a spill might go unnoticed. After this period, technicians meticulously clean the surface using manufacturer-recommended methods. The area is then inspected under consistent lighting for any permanent discoloration, etching, or change in gloss.

For quantitative results, many labs use spectrophotometers to measure color difference (Delta-E value) before and after exposure. A high Delta-E value indicates a noticeable stain. Manufacturers compare results against internal standards or industry benchmarks, such as those from the American Society for Testing and Materials (ASTM). Passing these tests ensures the table finish offers practical durability, allowing for easy cleanup and long-term aesthetic preservation, giving consumers confidence in their purchase.