O.S. Engine OS49469450 GF40 Thermal Insulator Sheet for Model Engine Accessories  [OS49469450]

Reduce heat transfer on R/C power units

The O.S. Engine OS49469450 Thermo Insulator GF40 is a dedicated thermal insulation sheet for R/C engine accessories and routine engine care. It is intended to sit between hot elements and surrounding parts to limit heat flow, helping components maintain steadier temperatures during operation and when being carried or stored.

The GF40 is provided as a lightweight, thin sheet that you can cut to fit around cylinder heads, muffler flanges, or intake areas without adding significant bulk. Its role is practical: by preventing direct heat soak to nearby components, it promotes predictable engine behavior and simplifies temperature-related adjustments.

Fitting is simple on common layouts. Trim the material to the shape required, fix it with existing clamps or removable tape as needed, and be careful not to block vents or exhaust routes. For routine maintenance inspect the sheet for oil saturation or compression that could reduce insulating function and replace when worn.

The insulator is broadly compatible with R/C engine accessories rather than being chassis-specific, so visually check clearances before final installation. Only use this item on model engines and related components.