The 3mm Internal Plastic Corner Section is a rigid PVC 90° corner joint designed for creating clean, accurate internal corners when joining 3mm thick boards, panels and plywood sheets. Manufactured from durable PVC, this lightweight profile provides a simple and effective solution for finishing panel corners while improving the overall appearance and strength of the installation.

Ideal for use in signage, shopfitting, exhibitions, displays and fabrication projects, the 3mm Plastic Internal Corner allows panels to be joined neatly at right angles without the need for complex fixings. Its rigid construction helps maintain a professional finish while protecting panel edges and providing a reliable corner detail for a wide range of applications.

The easy-to-cut PVC material makes installation straightforward, whether used for permanent commercial projects or temporary display structures. The clean white finish provides a smart, discreet appearance that complements many board materials and panel systems.

For a complete panel finishing solution, this 3mm Internal Plastic Corner can be used alongside matching profiles such as the 3mm J Section for edge protection and the 3mm Butt Joint for connecting boards in a straight line. These complementary profiles provide a versatile system for creating neat, durable and professional-looking panel installations.