The ILA-TIM-SQUARE series, from Intelligent LED Solutions, are a family of thermal heat pads designed specifically for LED squares (58x58mm). They are available in non-adhesive or single/double sided adhesive options.

"Features of the ILA-TIM-SQUARE single-sided and non-adhesive:
Colour: pewter
0.13mm thick
Temperature range: -240°C to +300°C

Features of the ILA-TIM-SQUARE double-sided:
Colour: cream
0.16mm thick
Temperature range: -240°C to +300°C"

Thermal Interface Materials, Intelligent LED Solutions

The ILA-TIM-XXXX-YY series of high-performance, cost effective thermal Interface Material (TIM), from Intelligent LED Solutions, is designed for use with their standard LED array products (such as: 773-3482). The Thermal Interface material fills air pockets between the PCB and the heat sink surfaces, forming a continuous layer to improve the transfer of heat away from the LED.
Intelligent LED Solutions offers three versions of Thermal Interface Material: Double sided adhesive (suffix -2A), single sided adhesive (suffix -1A) and no adhesive (suffix -0A).