Hi Lee, great shots! I could TOTALLY believe 1046's bulkhead seal (shown in pic 2) is the same exact material shown in pic 4.
And assuming the bulb diameter is ~16mm, the same stuff was on 1010...not on the bottom edge of the engine cover - either missing or never fitted there - but running along either side of the engine bay. Seems like a logical choice for the bulkhead seal too. Curious what you think?!