Local chainsaw shop uses Fullaseal 700 Roof & Gutter - grey ... Has done for years and never had a problem! I note on their spec sheet that it is good to 150C, non-acetic and needs atmospheric H2O and 24hrs to cure.
Dirko is expensive, though for the amount we need each tube goes a long way.
It doesn’t dissolve it as such. In fact gasoline dissolves the 3 you’ve mentioned. It will cause Dirko to swell and in thin areas shrivel.
The three I mentioned are made specifically for use on dirt bike center cases, which is nearly identical to a clam shell chainsaw. I have used Threebond and Yamabond many times and they have always worked perfectly.
Yep agreed, but Dirko works perfectly too, Stihl has used it for decades even though it’s an RTV - which technically shouldn’t be used right? Just seems that any of the following work just fine even though none are fuel proof.
I can't comment on what Dirko is or isn't as I have never used it.
Yep, Dirko is a acetic cure silicone sealant. It has zero fuel resistant properties.
I only bring up the silicone thing because I had a dirt bike that the precious owner used silicone to seal the joint between the intake boot and air box. Gasoline spit back caused the joint to fail and the motor sucked a bunch of sand though it. A cylinder replate, new crank assembly and piston latter and I was back in business, but a very expensive lesson learned. That sort of thing sticks in your mind!
Totally get what you’re saying and totally agree!
So does Motoseal.
