This section is from the book "Complete Self-Instructing Library Of Practical Photography", by J. B. Schriever. Also available from Amazon: Complete Self-Instructing Library Of Practical Photography.
Enameling Glossy Or Special Glossy Prints. This grade of paper can be burnished with an ordinary burnisher, but care must be exercised that the burnisher is not too hot. Another method is to place the wet print, face down, on a ferrotype tin and then, with the print roller, bring the print in absolute contact with the tin and allow it to become bone dry. It can then be readily peeled off by raising one corner with a pen knife. The surface of the print will have assumed a very high lustre. If your ferrotype tin has been used for some time portions of the print may stick. To prevent this it is advisable to prepare the tins as follows: Dissolve one ounce of paraffine in 10 ounces of benzine. Allow this solution to stand for a few hours. This will give the undissolved parts time to settle. Wash each ferrotype plate with clean water. Next swab the plate with this paraffine and benzine solution. After the solution has been applied be careful to rub the entire plate dry with clean cloth or absorbent cotton. If too much of this solution is kept on the ferrotype plate, the prints will have a greasy appearance on the surface. If the print is not brought in contact with the ferrotype plate there will be spots on the print which will lack the high lustre. If you find the prints will not peel from the plate, the plate has not been properly prepared. It will then be necessary to place both print and plate in water to soak, until the print will peel off. Then, carefully wash your plate and apply the solution again.
Tacking The Print Instead Of Pasting Upon The Mount. All platinum prints, or those which lay flat without mounting solid, should only be tacked at the upper edge - of course such prints must be dried and trimmed before tacking - and as light-weight mounts are usually used for this purpose, special paste which will not cockle should be employed. The following formula is easily made and will keep for months:
1230. To make 3 ozs. of this paste, take 1 oz. dextrine to 2 1/4 ozs. of water. Mix until all is dissolved, then place on the stove to boil, stirring constantly until it thickens, after which remove and allow it to cool. Before cooling, however, add a few drops of oil of wintergreen. Winter-green preserves the paste and keeps it from spoiling.
Mounting The Print. Only the upper edge of the print should be pasted and for this purpose a small one-quarter inch Faber brush should be employed. The print is adjusted to the mount and immediately weighted down with a piece of glass. The print and mount will then dry spontaneously. Where much mounting is done, several pieces of glass should be used, although as many as a dozen prints may be stacked one on top of the other, the weight holding them firm and free from cockling. After ten or twelve prints are mounted, however, another glass should be used to insure perfect contact and to obviate cockling.