Answers.Body: <p>In <a href="http://www.lugnet.com/technic/lube" rel="nofollow">this</a> discussion at LUGNET the conclusion seems to be that you could use dry graphite if you are comfortable with graphite powder everywhere. Else you should try lithium grease or canola oil.</p>
  
  <p>There is also a serious warning about using hydrocarbon oils that could damage the rubber seals inside pistons and the rubber air tubes.</p>
  
  <p>One poster also noted that stiff pneumatic cylinders can be unstuck by moving them by hand for a while. This definitely does worth a shot before trying to add any kind of "foreign" material such as oil.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2014-05-27T11:32:42.623Z
Answers.Text: Thanks for the suggestions. Dry graphite is unlikely to work as the pistons had  got a little damp due to my son blowing into them!
Answers.UserDisplayName: Simon Featherstone
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2014-05-26T08:43:44.283Z
Answers.LastActivityDate: 2014-05-26T08:43:44.283Z
Answers.UserDisplayName: zovits
Body: <p>My sons "<a href="https://brickset.com/sets/9641-1/Pneumatics-Add-On-Set" rel="nofollow noreferrer">9641 Pneumatics Add on Set</a>" now suffers from stiction.</p>
  
  <p>How can this be fixed? Can it be cleaned? Is there a recommended lubricant? </p>
  
  <p><a href="https://i.sstatic.net/kLJlj.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/kLJlj.jpg" alt="image of the set in question"></a></p>
  
Tags: <cleaning><pneumatic>
Title: Pneumatic pistons getting sticky
UserDisplayName: Simon Featherstone
ThreadText: # Pneumatic pistons getting sticky
  
  (Asked by: username_0 on 2014-05-22)
  
  My sons "[9641 Pneumatics Add on Set](https://brickset.com/sets/9641-1/Pneumatics-Add-On-Set)" now suffers from stiction.
  
  How can this be fixed? Can it be cleaned? Is there a recommended lubricant?
  
  [![image of the set in question](https://i.sstatic.net/kLJlj.jpg)](https://i.sstatic.net/kLJlj.jpg)
  
  **Tags:** cleaning, pneumatic
  
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  ## 1 answers
  
  ### Answer by username_1 on 2014-05-26. Score: 4
  
  In [this](http://www.lugnet.com/technic/lube) discussion at LUGNET the conclusion seems to be that you could use dry graphite if you are comfortable with graphite powder everywhere. Else you should try lithium grease or canola oil.
  
  There is also a serious warning about using hydrocarbon oils that could damage the rubber seals inside pistons and the rubber air tubes.
  
  One poster also noted that stiff pneumatic cylinders can be unstuck by moving them by hand for a while. This definitely does worth a shot before trying to add any kind of "foreign" material such as oil.
  
  > **Comments:**
  > **username_0**: Thanks for the suggestions. Dry graphite is unlikely to work as the pistons had  got a little damp due to my son blowing into them!  
  
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