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When should you use lining paper?

described By Ray Lewhite.

The use of lining paper the householder may be a little doubtful about. The decorator may suggest to his customer, after inspecting the job, that it would be wise to use a lining paper but his advice is often ignored for the householder suspects he is trying to make an extra job for himself with the customer paying the extra cost. This is a pity for on some occasions it is most essential for a lining paper to be hung if a really good result is to be obtained. There are times when to do without - is penny wise pound foolish as, had it been used in the first place, a great deal of trouble and expense would have been avoided. Naturally when you do the job yourself the only extra expense is the cost of the lining paper and that is not much.
Lining papers vary considerably in price and quality, although the majority of stores may only stock two or three types. Some shops have a number of differently coloured lining papers that are usually with expensive papers of a similar colour. The idea being, if the joins of the wallpaper should open, the plaster wall or white linings would be seen, whereas if the lining paper is coloured this will hide or at least minimise this joint.

When to line

Using lining paper
In general it is desirable to line the walls for all good quality wallpapers but not essential except in the following circumstances;
A. When a paper has a surface that reflects light, such as a varnished, waxed, satin or satinette, then a defect on the plaster, or any uneveness, will be accentuated when these types of papers are hung. The lining will level this surface.

B. All heavy embossed papers, when pasted, have a tendency to stretch as the fibres absorb the paste, and shrink on drying. This often causes the joints to open due to the paper losing its grip on the plaster surface. Lining paper will stop this.

C.When delicate types of paper on which the colours are lightly bound are used the paste is liable to soak into the paper causing stains to appear as it dries. The lining in this case acts as a sheet of blotting paper and takes up the excess paste.

Using lining paper
D.When the surface to be papered is smoothly trowelled plaster, with very little absorption such as a "Keenes" cement surface - once again the paste will be absorbed into the wallpaper quicker than into the wall. Also paper tends to open at the joints as it dries because the smoothness and hardness provides a weak key to receive the wallpaper.

E.Previously painted surfaces, especially the glossy types, have a poor surface for receiving wallpaper and promote condensation which will eventually cause (through damping up) the paper to loosen.

F.When relief decorations such as "Anaglpta" and "Lincrusta" are to be hung. Because they are heavy, lining papers gretly assist in holding them to the ceiling or walls.
The advantage of lining walls before paperhanging is that it provides a ground of uniform absorption and a key for the wallpaper to attach itself.


On painted walls

Using lining paper
Cellulose pastes, have a greater water content than the ordinary cold water pastes, are more liable to soak into the wallpaper unless walls are reasonably porous. Painted surfaces are undoubtedly the worst to hang wallpaper. Even when rubbed down to obtain a key, they remain sealed. Here lining paper is most essential - it has the dual purpose of checking condensation and the springing of the joints as the wallpaper dries out. A good quality lining paper would be best for this purpose.
Occasionally a wall has to be painted and the surface is often far from perfect, having hair cracks and various defects which, although slight, will be seen when painted. Here a lining paper can greatly assist the levelling of the walls. A thin calenered( smooth and glazed type of paper is preferable to a thicker and more absorbent one. Although size is never applied to a surface before painting it, in this case the exception to the rule applies in order to prevent the oil in the paint from being absorbed into the paper. The chemical reaction between the paint oils and the vegetable fibres in the paper will cause the paper to gradually deteriorate and become brittle. The size must be applied thinly to enable it to soak into the paper and not merely lie on the face.


Hanging lining paper

Using lining paper
The hanging of lining paper follows the same practice as applied to wallpaper, except, unless the edges are damaged, it does not require trimming. Long lengths should be folded in a series of pleats as is done when hanging ceiling lengths (Fig.1) each one being approximately 16in. They should be hung horizontally to the walls being right-angled to that of the wallpaper (see Fig.2). This creates good bonding.
This method is no essential when the walls are to be painted or emulsion applied after lining. Overlapping of the joints must be avoided if possible, especially when the top surface will be painted. Should the joints be a fraction open the paint will fill them. If you are going to paint over the lining paper rub any overlapped joints lightly with glasspaper before applying the size. Do not size the lining paper after hanging if wallpaper if wallpaper has to be applied afterwards as it will stop the paste being absorbed and so lessen the purpose of the lining. This also applies when using emulsion paints. Finally remember to allow the lining paper to dry before applying any wallpaper or paint

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Fig.1
Fig.2
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