1. OBA Free Canvas coated with archival certified print varnish.
The two prints are virtually indestinguishable.
2. Canvas with OBA's coated with archival certified print varnish.
The exposed print has significantly yellowed in both the printed and unprinted areas.
Conclusion
Quality in, Quality out.
Clearly canvas manufactured with Optical Brightening Agents (OBA's)
pose a longevity risk, even when coated with an archival
cerified varnish. As little as a couple of days of sunlight exposure
proves this. Conversely, canvas manufactured OBA-FREE maximizes
longevity and poses little to no risk.
