Silicone baffle adhesive ???

[Larry DeCamp]

Can anyone advise an effective adhesive for silicone baffle strip from ACS ? I have high temp red silicone to seal aluminum baffle on the engine, but not ready to open it yet for a test on silicone. Thanks in advance.

[flyingriki]

I tested several silicones on pairs of baffle scraps and found a pure clear I have was the strongest. I'll get you a part number later. Red didn't do that well, a black I got for sealing baffles to the engine case did better the clear scraps are still stuck together. The rest I pulled apart with varying degrees of ease.

[flyingriki]

The good clear is Dow 732 or P/N 09-27800
The good black is Permatex Ultra Black.

[esco]

Dow has a number of sealants https://www.dowcorning.com/content/p...it/80-3258.pdf:

730 temp range is -85 to 500/-65 to 260 (F/C)
732 temp range is -76 to 350 ("intermittent" 400)/-60 to 177 (204)
736 Heat Resistant Sealant range is -85 to 500 (599)/-65 to 260 (315)