I have been struggling with sights on my rimfire pistol which keep coming loose. A couple of helpful fellows from the forum pointed out that Purple Loctite will work wonders. Unfortunately getting this magical potion (here in Ontario) is not so easy. Canadian Tire only seems to carry red and blue (not purple -- low strength). Brafasco carries a 50ml bottle for a whopping $50.94!!! Does anyone know where to source this stuff without breaking the bank?
Purple Loctite (Where and How Much)
- Thread starter xtro
- Start date
I've used a drop of crazy glue for a similar problem. It sticks to metal, but quite poorly. It'll hold the sight, but can be knocked out easily if needed.
Try it on a couple small pieces of metal and see if that does the trick for you...
Try it on a couple small pieces of metal and see if that does the trick for you...
Gregg distibutors or Acklands should have small bottles of it in stock.
MauserMike
CGN Ultra frequent flyer
- Location
- SW Ontario
try clear nail polish
Go in to your nearest Fastenal store or order online. 10mm bottle of Loctite 222 threadlocker at $18.00. There's 171 stores across Canada, it certainly isn't that hard to find.
http://www.fastenal.com/web/products/detail.ex?sku=0150387&ucst=t
http://www.fastenal.com/web/products/detail.ex?sku=0150387&ucst=t
for threads use the blue loctite....it will hold but can also be loose'nd if need be....use the purple and you may need to apply heat in order to loosen the screw...different uses and applications for different colors of loctite....be sure you get the right one for the right job
Loctite 641 retaining compound may be another alternative if your sites are dovetailed, if you need to lockdown a screw blue loctite or as mentioned above clear nail polish. If the site is dovetailed a few punch marks in the bottom of the dovetail will tighten that sucker up as well.
chingascook
New member
- Location
- Brampton,Ontario
Purple threadlocker(Permatex)
Go to Amazon.com and you can buy a 6 ml tube for $8.28 plus shipping
Go to Amazon.com and you can buy a 6 ml tube for $8.28 plus shipping
222 is purple, low strength, 242 is blue, medium strength, 271 is red, max strength. The one I use the most is 290, green, low/medium strength and is a wicking compound, it is very low viscosity and will follow threads or tight channels. It was designed to use mainly to secure set screws and small fasteners after they were assembled, makes them vibration proof, works well on dovetail sights, after adjustment, a couple of drops will hold them in place, not too hard to remove.
Last edited:
Purple is low strength used for machine screws, read up on stuff before giving poor advice.
You will have to use heat on BLUE loctite long before even thinking of heating purple.
Purple locktite
Purple locktite (I use Permatex Brand) is LOW strength, weaker than blue. It is recommended for real small screws etc. I use blue on bases but purple on rings. Comes apart no problem.
Question why does "Locktite Brand" put the blue in the red tube and the red in the blue tube. How many times have people been told use blue and bought the blue tube, which is red high strength locktite. Dosn't make sense to me. Cheers
Purple locktite (I use Permatex Brand) is LOW strength, weaker than blue. It is recommended for real small screws etc. I use blue on bases but purple on rings. Comes apart no problem.
Question why does "Locktite Brand" put the blue in the red tube and the red in the blue tube. How many times have people been told use blue and bought the blue tube, which is red high strength locktite. Dosn't make sense to me. Cheers
