Assertion: shellac's use | /r/HasProperty | problematic
Facets:
Source sentences:
text: Exterior use of polyurethane varnish may be problematic due to its heightened susceptibility to deterioration through ultra-violet light exposure.
text: Use of the more opaque shellacs can be problematic as building a ‘grain-filled’ finish can require the application of so much shellac that the wood surface is partially obscured, resulting in an unsatisfactory, muddy finish.
text: Exterior use of polyurethane varnish may be problematic due to its heightened susceptibility to deterioration through ultra-violet light exposure.