Table 2: Effect of different surface sealing methods on the indoor formaldehyde concentration.

Sealing methodsFormaldehyde concentration (ppm)

Substrate, no sealed edge1.20
Veneer, sealed edge0.81
Slim wood veneer, sealed edge0.10
Panel decorated by melamine, no sealed edge0.10
Panel decorated by melamine, sealed edge0.02
Polyester paint panel, no sealed edge0.09
Polyester paint panel, sealed edge0.02
SH covered panel, sealed edge0.08
Stick film, sealed edge0.03