Malcolm Koch presents The Unbent Curve, an exhibition exploring the boundaries of structural form and surface tension. Created entirely in a curved state, Malcolm’s oil paintings and copper sheets endure immense physical stress while undulated or rolled.
This literal tension alters the behaviour of the tools, mediums, and chemicals used, fundamentally reshaping their surfaces. By applying marks, making saw cuts, and triggering chemical reactions in this restricted state, Malcolm allows time to act as a primary medium.
Once unfurled and flattened for observation, the works reveal striking, unexpected patinas and fluid landscapes—proving that flattening the surface is the very act that brings the curve to life.
Only when the work is finally unfurled and flattened for observation is the final state revealed—leaving behind striking patinas and fluid landscapes that hold the permanent memory of the curve.
- Exhibition: The Unbent Curve by Malcolm Koch
- Location: 44 Nelson Street, Stepney, South Australia
- Run Dates: 1 August–31 August
- Hours: Monday—Friday, 10am—5pm (or via private appointment)

Meander Flat is an artwork made of copper that is visible from both perspectives, but not at the same time.
About Meander Flat
Conceived and executed entirely within a restricted, curled state, Meander Flat explores the boundaries of structural form and surface tension. By forcing the canvas into tight folds, the material endures an immense physical stress that fundamentally dictates how tools, mediums, and chemistry interact.
By applying marks, saw cuts, and interconnecting holes—and triggering chemical reactions while the work was bent—the physical boundaries between the front and reverse sides are completely dissolved. Accordingly, this shared DNA erases the traditional priority of an “obverse” or “reverse” surface, empowering the viewer to decide where the artwork truly begins.
Once unfurled and flattened for observation, the work reveals a striking patina anchored by a solid, central wave—proving that the curve is born the moment the material is returned to the flat plane.

The Unbent Curve Exhibition features the illuminated copper artwork Reductionism.
About Reductionism
This work is a two-dimensional map of a three-dimensional event. Created while the copper sheet was coiled in a cylinder, a single series of drill strikes pierced through the layered metal, creating a synchronised network of voids. When unfurled, these points of impact align into two rigid vertical pillars—a visual order born from a hidden, circular geometry.

The copper artworks Chemical Weave and Unified Pulse are on display at The Unbent Curve exhibition.
About Chemical Weave
Flattened into a 2D plane, the work provides material evidence of a curve that cannot be replicated through traditional application. The synchronised drill holes and mirrored patinas are artefacts of a 3D history—a permanent record of spatial tension and chemical time captured on a singular surface.
About Unified Pulse
This work explores the intimate bond between Australia’s cool coastal waters and its sun-drenched soils, mirroring the interconnectedness of the human experience. A visual rhythm resonates across the canvas; the inland pulse and the salt-sprayed sea are a single expression. As a result, there is no definitive line between land and water and no true separation between individuals.

The copper artworks of Smouldering Cosmos and Eucalyptus Oxidised are on display at The Unbent Curve exhibition.
About Smouldering Cosmos
Sharp-edged holes appear while softer ones recede. However, many of these marks are interconnected, including the oxidised waves. Formed as a single entity within a curved spatial construct, they appear separated on the flat image plane. The artist’s fingerprints are evidence of human involvement in the unfurling process. As a result, it creates a non-linear journey that challenges our observations and encourages a deeper process of reflection.
About Eucalyptus Oxidised
This painting explores the geological evolution of the Australian landscape. Through colour, texture and oxidised verdigris. It shows the deep, long-lasting bond between the mineral-rich layered earth and the living landscape. It highlights the continuous story of structural transformation. Linking the environment’s beauty to the rugged and weathered past.

The copper artwork Symbiotic Self is on display at The Unbent Curve exhibition.
About Symbiotic Self
This copper artwork looks at human nature by balancing deep inner convictions with fleeting daily moments. Its scratched, chemical surface represents daily chaos, rubbed back to reveal a path to our core identity. Interconnected from underneath, a tight structural curl echoes our hidden internal convictions that ground the marks to the natural curve. Now unfurled and suspended over silver mirrors, the complete system proves that every fleeting mark is vital to our collective self.
- Exhibition: The Unbent Curve by Malcolm Koch
- Location: 44 Nelson Street, Stepney, South Australia
- Run Dates: 1 August–31 August
- Hours: Monday—Friday, 10am—5pm (or via private appointment)
About the process
The Copper Project is a series of work created for my SALA Festival exhibition, 2024 (South Australian Living Artist Festival). Further evolving the distinctive expressive style of Membrane Art® – see Artist Statement. Although copper is a part of everyday lives, it has toxic properties that must be managed in a responsible way. To do this, I primarily use household products such as vinegar, salt and ammonia. Also, I minimise water usage and reuse chemical byproducts as much as practicable. Most pieces are coated with a micro-crystalline wax to slow and stop the oxidation process.


































































































