A canvas can hang on that wall for a decade and still appear perfectly reasonable from first glance. At the same time, little changes start popping up. The surface might start to become loose, ocean-wavy, or lose its tautness.
These signs indicate that the canvas may need some re-stretching. It is important to know what to look for so that you can do properly fix the door from a mark located on it and get it back to that clean, professional finish.
What is Re-stretching a Canvas?
Canvas stretching is a process of stretching the canvas with an equal tension across the surface and securing it over a wooden stretcher frame.
The fabric may become loosened over time as it ages or from changes in humidity, the temperature, and habitual movement. The stretcher may no longer hold the canvas flat.
Re-stretching, on the other hand, is when one removes the old tension and retightens the canvas in a controlled manner. The goal is to make the surface level without placing undue stress on the piece.
Try the Surface Test
If you want to check your canvas one of the easiest ways is to see it closely.
The best way is to stand in front of it and observe the painting with adequate light. Look for:
- Small waves or ripples
- Sagging areas
- Loose edges
- Uneven tension
- Previously unseen creases
You can also gently stroke the area with clean fingertips. On your painting, the tension of the canvas should be taut, not soft or floppy.
Do not press hard. Overhandling can also cause damage to older or more delicate artwork.
Check the Corners and Edges
Tension problems, as well, tend to reveal themselves first in the corners. Notice the points where the canvas wraps around the stretcher.
However, if the fabric looks baggy, sags in the top corners, or comes away from the frame it can be time to take corrective action.
Or it can be a sign of distance between the canvas and stretcher, suggesting that there is an original tension change.
This is where professional canvas stretching makes a major difference. A trained framer should be able to analyse the fabric and decide if re-stretching is appropriate.
Has the Canvas Become Uneven?
A canvas does not always show clear wrinkles. In some cases, the issue is a slow shape-change.
Examination of the angle on an artwork. If sections begin to dip inwards or bow out, the canvas may not have a uniform pull anymore.
Because of the amount of area in a sizable piece, these modifications are more readily observable.
When Should You Call a Professional?
Never attempt tightening yourself if the painting is very valuable, antique, or sentimental. Free stretching of the fabric can lead to tearing, distortion of the stretch, or deforming/stretching the stretcher itself.
Specialist framers in Sydney can examine the artwork and better determine whether it needs to be re-stretched, reframed, or undergoes some other type of conservation work before deciding on a solution.
This is especially important if cracks or tears have already started to appear in the canvas surface, or if the canvas has begun warping.
Can Re-stretching Fix Every Problem?
Not always. Certain tension issues can be cured with re-stretching, but not all damage on the canvas can be repaired.
Possible candidates for expert conservation include ultra-raised rips, flaky textile, or damaged pigments. In these situations, stretching should be done as part of a larger repair process.
You should always check the condition of the artwork prior to any work.
Keep an Eye on Your Canvas
If tension problems are identified early, it is relatively easy to carry out a re-stretching. Once in a while − especially after it has been moved to a new house or exposed to major humidity changes − check your artwork.
Professional canvas stretching may be needed instead of tackling the issue with tools around the house to keep an eye out for ripples sagging or loose fabric
A good quality canvas will stay true for many more years with careful treatment and assistance from experienced framers in Sydney.
