Non destructive crack checking products

[Kbach66]

I know there are several non destructive crack checking penetrants and developers out there.....what are some of the better ones?
In a quick check online, I came up with quite a few options but they all seemed to be focused on checking for cracked welds.

I need something for checking cracks on motorcycle/atv transmission gears, cases, frames etc.
I've been using a product from Japan that works real well but lately has been extremely hard to get and very expensive.

Does anybody have any first hand knowledge of some of the best US based products available for this aplication?

[brad inch]

we have a wet mag at transaxle engineering in chatsworth,we could do your small parts , but i do not think your frame will fit.

mcmastercar sells some canned stuff,it works ok.it takes three dif cans and makes a mess
call brad at 818 998 2739

[5racer]

makes a mess

understatement for sure its like haveing dykem in your swamp cooler

[fathead]

Call MPM Products and ask for Shawn, 909-947-8464.
They are a NDT supply company.
The development of penetrant testing dates back to the railroad days, originally called " The oil and whiting method" After welding the track together, they would rub used motor oil over the area and let it sit. They would then wipe it as clean as possible, then powder it with something like flour, corn starch, or baby powder. The oil seeps into poors and is revealed with the contrast of the white powder.
*****Bonus words for the day. Capilary action. This is what is taking place by the oil seeping into the poors. Easiest way to see it in action is to put some dish soap in a glass and run water in it. Notice how long it takes to get the soap out.



By the way, this is all from memory so don't flame if I'm alittle bit off.

[RyanWiW]

I use the dye check stuff that comes in three cans as stated above. It does make a mess, but is very good at revealing small cracks that are to small for the naked eye. it cleans up easily with some brake parts cleaner, and is simple to use.

http://www.grainger.com/Grainger/items/3WU62

[Kbach66]

Thanks for the help everybody.

I'll check into some of those listed.

[loufish]

One more:
http://www.aircraftspruce.com/catalog/topages/magnaflux.php

Two tips for dye penetrant success:

1) Do a real good job cleaning the parts to be checked, Brake cleaner and such to remove as much oils as possible.
2) Get the parts warm, like leaving them in the sun, if smaller like gears then maybe an oven set at 170 degs...

[powerbox_builder]

If you are doing a lot of stuff, give Inspection Technologies a call, they can sell you a yoke, a UV light, and the solution to wetmag stuff yourself. Thats the best way to check gears, but wont work on non ferris stuff (cases).
http://www.ndtpros.com/main.aspx

[loose_nut]

on our chassis we use mag particle. its an electro magnet and a powder works very well

[rharriman]

we have a wet mag at transaxle engineering in chatsworth,we could do your small parts , but i do not think your frame will fit.

mcmastercar sells some canned stuff,it works ok.it takes three dif cans and makes a mess
call brad at 818 998 2739

Hope that number was already public:eek:

[LinkdChevy]

I use a product line called Magnaflux at work. The kit has the cleaner, penetrant, and developer.

[fathead]

If you are doing a lot of stuff, give Inspection Technologies a call, they can sell you a yoke, a UV light, and the solution to wetmag stuff yourself. Thats the best way to check gears, but wont work on non ferris stuff (cases).
http://www.ndtpros.com/main.aspx

Again, going from memory....
You don't want to check gears/ cranks/ cams etc. with mag yokes. Due to the contour of the parts mag yokes have a hard time getting in the valleys. Also mag yokes do not have the high amperage capability necessarly needed for the mass of gears, cranks, etc. You want to use a wet horizontal unit, these units usually have the capability to produce longitudinal and circular fields...Wit the capability of a much higher amperage.

[9rocky]

Mag. particle is done by inducing an electrical current through the piece being inspected, which will then produce a magnetic field. The size of the magnetic field depends on the amount of amperage applied in either the straight (head shot) or circular (coil shot) directions, in the case of the wet continuous method. Aircraft and military mag. specifications require both directions to be used, with an inspection after each.