Reviews
Part of Judging decorative paper: start by holding the sheet up to the light
One level tray matters more than a level bench in decorative paper work
Wet decorating work wants different surfaces from cutting. Trays, glass, blotting boards, and why a level bath matters more than a level bench.
What to take away
- Nothing was bought or tested for this article. It compares surface types for wet decorating work.
- The tray matters more than the bench, because the bath has to sit dead level.
- A wet sheet has no strength, and the surface you lift it onto decides whether it survives.
- Choose surfaces by which agent of deterioration they help against, not by how they look.
Wet work needs different surfaces from dry work
Binding surfaces are chosen for cutting and pressing. Decorating surfaces are chosen for liquid: holding it, draining it, and not reacting with it. A self-healing mat under a tray is a mistake, because it holds water underneath and cups.
Decorating surfaces and their weaknesses
Surface
- Photographic or seed tray
- Holds the bath
- Plate glass
- Draining, paste work
- Melamine board
- Blotting, general
- Acrylic sheet
- Lifting wet sheets
- Bare or coated wood
- Nothing wet
Role
- Photographic or seed tray
- Flexes if unsupported
- Plate glass
- Heavy, cold, sharp edges
- Melamine board
- Swells if edges raw
- Acrylic sheet
- Scratches, static
- Bare or coated wood
- Warps, stains, acidic
Weakness
- Photographic or seed tray
- Plate glass
- Melamine board
- Acrylic sheet
- Bare or coated wood
Wet work needs different surfaces
Role
- Photographic or seed tray
- Holds the bath
- Plate glass
- Draining, paste work
- Melamine board
- Blotting, general
- Acrylic sheet
- Lifting wet sheets
- Bare or coated wood
- Nothing wet
Weakness
- Photographic or seed tray
- Flexes if unsupported
- Plate glass
- Heavy, cold, edges sharp
- Melamine board
- Swells if edges are raw
- Acrylic sheet
- Scratches, static
- Bare or coated wood
- Warps, stains, acidic
Get the tray level, then forget about the bench
A marbling or suminagashi bath has to be level or the size pools and the pattern drifts to one end. Shim the tray, not the table. Check with a spirit level in both directions and check again after you fill it, because a flexible tray sags under the weight of the liquid.
Support a thin tray on a sheet of board or glass. A tray that flexes changes depth as you work across it, and that shows in the pattern.
Lifting and blotting
A wet sheet has essentially no tensile strength, and it will tear under its own weight if you lift it from one edge. Lift with two hands from a corner and a mid-edge, or slide a sheet of acrylic underneath it.
The Park Service salvage guidance in salvage at a glance for paper-based collections covers flood response, and its handling column applies exactly here.
For friable media such as pastels and chalks, and soluble inks, do not blot. Interleave sheets between folders rather than separate them, and dry by air or freezing. Pressing a blotter onto a freshly decorated surface lifts pigment; laying the sheet onto a blotter does not.
Pick surfaces against a named risk
Park Service guidance on selecting museum storage furniture makes furniture choice the first step against the ten agents of deterioration.
Ten agents: physical forces, fire, pests, light, incorrect relative humidity.
The rest: thieves and vandals, water, pollutants, incorrect temperature, dissociation.
That list is a useful bench test. A wooden shelf above a wet tray fails on water and pollutants. An open rack in a bright room fails on light. Naming the agent tells you what to change.
The practical set
- One rigid tray on a supported, shimmed base.
- A glass or acrylic sheet for lifting and draining.
- A melamine-faced board for blotting, edges sealed.
- Blotters and newsprint, treated as consumable.
- A closed box, away from the wet zone, for finished sheets.
The room layout that holds these is in a small-space setup for decorative paper, and the equivalent dry-work comparison is in work surfaces for binding.
