Clevo Overheating/Suggestions for metal thermal paste please ?

So, after talking to PCSpecialist Customer Support about my overheating Clevo(i7 8700k, gtx 1080, P7xxTM1 (U3E1), 32gb ram) they advised me to change the paste on the processor. The processor and motherboard would reach 90 degrees while playing league of legends and 55-65 degress on idle.
My question to you guys is : which liquid metal thermal paste should I use ? As I've metioned above the processor is I7 8700K. Can you please provide links ?

 

I use thermal grizzly liquid metal. I hope you have read up on the dangers and proper handling/application method? Also be aware it is likely to void your warranty.

 

So the reseller told you to do your own repaste to fix their bad job?

I guess that's why their reputation is what it is.....

Since you are well within your rights to demand a labour issue be fixed under warranty I would at least want in writing from them that any damage you may accidentally do while repasting, would still be covered by them as they are directing a non-trained person to service their own product

I wouldn't cop that myself, and would insist on RMA under warranty. You don't know if there are other issues (warped heatsink or bad heatpipe etc) that mean liquid metal won't fix your temps. Warranty repair makes that all their problem.