Notifications
Clear all

loctite...  

  RSS
evilphoton
(@evilphoton)
Active Member
loctite...

previously with my mk4s, when i would periodically go through and check screws for tightness, many were loose. maybe some is from the petg creeping over time. when i would find one loose, i would loctite (blue) it back in. when i took it apart last week for the mk4s -> core one upgrade, everything that i loctite'd was tight but most everything else was no longer tight. when i put the core one kit together, i loctite'd everything except the screws on the outside panels. this isn't the first time i've worked with fasteners, so i mostly get it when the instructions include the ambiguous "tight but not too tight" without any sort of torque tool or measurement.

what are others' experiences with this?

Posted : 28/10/2025 3:46 pm
chmax
(@chmax)
Reputable Member
RE: loctite...

funny, I was thinking exactly the same just yesterday... I need to go and check the state of the various screws on the C1 hoping that they will not loosen up as bad as the mk4s

Posted : 30/10/2025 4:57 pm
1 people liked
hyiger
(@hyiger)
Noble Member
RE: loctite...

Or make the same mistake I did and replace the PC-CF parts with Nylon (PA). At the time, I didn't realize how badly unannealed Nylon cold-creeps. 

Posted : 30/10/2025 5:10 pm
mnentwig
(@mnentwig)
Estimable Member
RE: loctite...

Just wondering... A faint memory that Loctite doesn't mix with plastics. Best case, undefined results, and worst case, plastics turning to dust.

Not sure if that's what you meant, just in case someone reads it this way. 

 

Posted : 30/10/2025 6:54 pm
mark
 mark
(@mark)
Reputable Member
RE: loctite...

It depends. There are lots of different kinds of Loctite. Loctite 425 is specified for plastics, but reported not good with Polycarbonate.

Regards,

Mark

Posted : 30/10/2025 7:17 pm
1 people liked
evilphoton
(@evilphoton)
Active Member
Topic starter answered:
RE: loctite...

sorry, i said permatex blue but loctite came out. it's all into aluminum or the square nuts and it seems to do ok. several of the things i took a apart had about 800 hours on them and it didn't seem to do anything weird.. but 800 hours. 

Posted by: @mark

It depends. There are lots of different kinds of Loctite. Loctite 425 is specified for plastics, but reported not good with Polycarbonate.

Regards,

Mark

 

Posted by: @mnentwig

Just wondering... A faint memory that Loctite doesn't mix with plastics. Best case, undefined results, and worst case, plastics turning to dust.

Not sure if that's what you meant, just in case someone reads it this way. 

 

sorry, i meant permatex blue... it seems to be doing ok. 

Posted : 31/10/2025 5:54 pm
Share: