[riseric]

Hey everyone,

Looking for advice to buy some Loctite for blocking some small screws holding the ballast to the mounting plate of the DuckWorks HID.

I was surprised to see so many varieties, from 221 to 290...

I'm hesitating between 242, 243, 262 or 270...

What do you guys normally use and should I buy different types for future use??

Thanks!!

 

[tim2542]

Here's a link:

http://www.loctiteproducts.com/product_advisor/index.shtml

Above link should help, but as a rule of thumb, red locktite will/may require heat to allow removal and is much stronger. Blue a bit less locking performance and can be removed with tools only. Green is the wicking product to use on previously assembled parts and supposedly seals also. I have/had a cylinder stud leaking and I believe the green 290 has stopped it. 2 hours now and still dry.
Never would have believed it.
Tim

 

[jarvis]

Based on my experience, I would use 290 on those small screws. 242 would be my (distant) second choice. Definitely would not use 262, 271 (red).

 

[Walt]

242 med strength is the "standard", 290 is med/high strength and may require heat for removal.

 

[Buggsy2]

FWIW, to lock the 7/16" bolts that hold the Sabre prop extension to the engine flange, Sabre requires the use of Loctite 262 (blue, medium strength). For those bolts, just one or two drops. If that's good enough to hold on prop bolts, it must be good enough for other uses.

 

[az_gila]

FWIW, to lock the 7/16" bolts that hold the Sabre prop extension to the engine flange, Sabre requires the use of Loctite 262 (blue, medium strength). For those bolts, just one or two drops. If that's good enough to hold on prop bolts, it must be good enough for other uses.

262 is semi-permanent and requires heat for removal -

http://tds.loctite.com/tds5/docs/262-EN.pdf

Use 242 for general applications that just need an anti-vibration feature.

http://tds.loctite.com/tds5/docs/242-EN.pdf

Note the different disassembly instructions.

Just because a product is good and specified for a particular high value application does not make it "universally good"....

 

[riseric]

Thanks!!

Once more, thanks to all for your quick replies, I definitally will not use the red variety as heat needed to remove these screws will not be welcome!!!

Comparing the technical specs of 242 and 243;

242: "Suitable for applications on less active substrates such as plated surfaces"

243: "It not only works on active metals (e.g. brass, copper) but also on passive substrates such as stainless steel and plated surfaces." In the French version, it says the same but aluminium is stated also as an example of passive substrate.

I'm thinking of going with 243 as it covers a wider range of applications...