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What Inspection
Penetrants Do
THEY ARE A SAFE, SURE, FAST, EASY, SENSITIVE LOW COST WAY TO FIND HIDDEN
DEFECTS. Penetrants highlight flaws and leaks that are open to the surface and are too
small to see by normal visual inspection. Inspection penetrants show the presence,
location, nature and size of defects. Penetrants are convenient. They can travel anywhere
in the field or be used where work space is limited. Penetrants can be used if the product
being tested is very large or complex. Inspection penetrants are used indoors and outside.
Inspection penetrants are recommended for the production inspection of large volumes of
critical components where reproducibility is essential. Inspection penetrants are capable of detecting leaks as small as 1x10 -4 Std. cc/sec.
The
Benefits of Using Inspection Penetrants
Inspection penetrants are a nondestructive tool used to find defects which
you might not otherwise notice. When a destructive test is performed, you are limited to
the examination of a small percentage of parts (which are destroyed by the test). With
non-destructive testing, you have the advantage of being able to examine, at a very low
cost per part, 100% of the parts put into service.
Who Uses
Inspection Penetrants
Penetrants are used world wide by quality control, welding, N.D.T. and
maintenance personnel. Almost all industries which work with metal rely partially or
exclusively on inspection penetrants. Industries which use inspection penetrants widely
include: aircraft manufacturers, welders, automobile manufacturers, the military (Air
Force, Army, and Navy), engine manufacturers and rebuilders, nuclear power stations,
ships, trains, primary metal producers, metal fabricators, machine tool
manufacturers/users, electric utilities, mining, pulp & paper, refineries,
petrochemical plants, subway, bus, and train maintenance.
When to
Use Inspection Penetrants
Penetrants are one of the most widely used inspection methods in modern
industry. Penetrants provide a non-destructive means of locating and evaluating flaws
during a product’s fabrication, installation, or service life. Inspection penetrants
are used for leak testing. Penetrants are an important part of manufacturing quality
control, failure analysis, preventive maintenance and evaluation of repair adequacy.
Penetrants are used to find cracks which occur in processes such as casting, welding,
forging, heat treating, grinding, stamping, extruding, or machining. Routine use will
detect fatigue cracks and deterioration resulting from operating stress, vibration, or
corrosion long before breakdown occurs. See How to Use
Inspection Penetrants
Why
Flaw Finder Penetrants Are Better:
- Dependability: Consistent results from batch to batch
- Approved and qualified to latest revision of MIL-I-25135
and the Qualified Products List Performance Specification SAE-AMS2644
- Penetrants meet major corporation specifications
- Variety: many penetrants & systems to choose from
- Available in a wide variety of containers
- Developers produce strong, sharply defined indications
- Developers are easy to apply, easy to remove & do not contain toxic
materials
- Low toxicity to protect personnel
- Available in all sensitivity levels
- Very short penetration time required
- Guaranteed stable for five years in unopened drums
- Excellent heat and UV stability
- High degree of wettability, so will find flaws on all surfaces
- Low viscosity allows better coverages & minimum drag out
- Easy to remove
- Low volatility, so safer to use & inoffensive odor
What
Materials Can Inspection Penetrants Be Used On?
Inspection penetrants are used effectively in the examination of any
non-porous solid. All metals can be tested in this way. Metals commonly tested using
inspection penetrants include aluminum, magnesium, steel, copper, stainless steel, brass,
bronze and titanium. Ceramics, carbides, molded rubber, plastics, powdered metal products
and glass are also widely tested using inspection penetrants. Penetrants cannot be used to
test materials for discontinuities that are not open to the surface or have an extremely
porous surface.
Why
We Should be Your Inspection Penetrant Supplier
Flaw Finder® inspection penetrants have been supplied to the government
and industry for over 15 years. We are experienced, willing and interested in your
problems.
Customer service is very important to us. Our toll free number is 1-800-288-3647. We know
that you have to work within budget constraints and that your time is valuable. We will
help you find the penetrant system that will work the most effectively for you. We will
ship using any method you specify. Almost all of our penetrants are available immediately
from stock. Call us for detailed data sheets on our formulas and for material safety data
sheets.
The American Gas & Chemical Flaw Finder inspection penetrant system is subject to
rigorous quality control standards. Flaw Finder penetrant systems are tested under
stringent conditions and are, of course, on the military Qualified Product List (Q.P.L.).
Our aerosols have excellent spray patterns and are good to the last drop. Our prices are
just about the lowest on the market. Our penetrants were developed with value in mind.
Discontinuties
Found by Using Inspection Penetrants:
- Forming Tears, Cracks, Laminations, Seams
- Forging Cracks, Tears, Laps, Bursts, Seams, Flakes, Laminations
- Casting flaws porosity, Shrinkage cracks, Coldshuts, Blow holes, Stress
induced cracks, Handling cracks
- Machining & grinding tears, Thermal cracks
- Maintenance inspection stress corrosion, Fatigue, Erosion
- Welding & Brazing, Lack of fusion, Surface porosity, Slag inclusions,
Stress cracks
- Other fatigue cracks, Heat treating cracks
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