k and a mixture thereof and a ratio of sio 2 to b 2 o 3 of about 10 1 to about 200 1 and thereafter polymerizing and curing a silicate glass on the sealed anodized aluminum layer by a heating the coated anodized aluminum layer to a temperature of about 200 u00b0 c to about 500 u00b0 c or b exposing the coated anodized aluminum layer to an infrared source the process can further include providing an aluminum surface anodizing the aluminum surface to provide an unsealed anodized aluminum layer and then hot sealing the unsealed aluminum oxide layer to provide a sealed anodized aluminum layer the hot sealing can include a hot sealing time of less than 6 min micron and at least 5 min micron 4 min micron 3 min micron 2 min micron 1 min micron 30 sec micron or 10 sec micron wherein forming the sealed anodized aluminum layer from the unsealed anodized aluminum layer consists of the hot sealing process still further the process can includes a time between the conclusion of the hot sealing process and forming the coated anodized aluminum layer of less than 60 45 40 35 30 25 20 15 10 or 5 minutes preferably the time is less than 5 minutes or is no more than the amount of time necessary to remove the sample from a hot sealing bath or apparatus cool to about room temperature and then immerse in the aqueous silicate solution in practice often less than 1 minute in another instance the sealed anodized aluminum layer may be held in a wet atmosphere in water or coated.