
MET-L-CHEK
Fluorescent Penetrant Testing
TYPE I according to EN ISO 3452-2
Testing products named MET-L-CHEK consist of penetrants which are
- water soluble
- emulsifying
Biodegradable is the following MET-L-CHEK penetrant:
Different sensitivity levels (level ½ to 4) according to AMS 2644E are available.
Products marked with
*** | are qualified to AMS 2644E and listed on the Qualified Products List QPL-2644 | |
** | are Pratt & Whitney PMC listed | |
* | comply with the requirements of AMS 2644E |
Colour Contrast Penetrant Testing
TYPE II according to EN ISO 3452-2
MET-L-CHEK Colour Contrast Penetrants are applicable universally , e.g. for surface crack testing in technical facilities, metal processing and weld testing.
MET-L-CHEK Colour Contrast Penetrants are highly sensitive (class 2 according to EN ISO 3452-2).
- Additionally, the penetrant system MET-L-CHEK offers a special system for testing under high temperatures:
MET-L-CHEK VP-302 + R-502 + D-702
Biodegradable is the following MET-L-CHEK penetrant:

TYPE II according to EN ISO 3452-2
- highly sensitive (class 2 according to EN ISO 3452-2)
Overview | Main Feature | |||
MET-L-CHEK VP-30 | *** | Red | ||
MET-L-CHEK ROT 1001 | * | Red fluorescent | ||
MET-L-CHEK VBP-300 | *** | Biodegradable | ||
MET-L-CHEK VP-302 | - | For high temperatures |
Test medium for colour contrast penetrant testing
*** Qualified to AMS 2644E and QPL-2644 listed
TYPE II, class 2
METHOD
- A Water
- C Solvent




Red fluorescent colour contrast penetrant
* Complies to AMS 2644E
TYPE II, class 2
- Red fluorescent
- AZO-free
METHOD
- A Water
- C Solvent




Biodegradable colour contrast penetrant
*** Qualified to AMS 2644E and QPL-2644 listed
TYPE II, class 2
- Biodegradable
- Free from oils and solvent
METHOD
- A Water
- C Solvent



Overview | Main features | |||
MET-L-CHEK NPU | * | Halogen-free, solvent-based | ||
MET-L-CHEK E-59 A | *** | Halogen-free, solvent-based | ||
MET-L-CHEK R-503 |
*** | Halogen-free, solvent-based | ||
MET-L-CHEK R-504 | *** | Halogen-free, solvent-based |
* Complies with the requirements of AMS 2644E
METHOD
- C Solvent
Class 2
- Halogen-free
- Solvent-based




*** Qualified to AMS 2644E and QPL-2644 listed
METHOD
- C Solvent
Class 2
- Halogen-free
- Solvent-based




- Fast drying remover
- Ideal for pre-indspection surface cleaning and excess removing
*** Qualifiziert nach AMS 2644E und QPL-2644 gelistet
METHOD
- C Solvent
Class 2
- Non-halogenated



Very fast drying remover
*** Qualified to AMS 2644E and QPL-2644 listed
METHOD
- C Solvent
Class 2
- Non-halogenated

*** Qualified to AMS 2644E and QPL-2644 listed
- White developer
- Solvent-based, non-aqueous (alcohol basis)
- Highest sensitivity
- Quick drying
- Creates homogeneous layer
FORM
- d Wet developer, solvent-based, non-aqueous for TYPE I
- e Wet developer, water- or solvent-based, non-aqueous for TYPE II and TYPE III




*** Qualified to AMS 2644E and QPL-2644 listed
- Dry powder
- Water-suspendable
- Even consistence through continuous stirring
FORM
- c Water-suspendable

Overview | Main feature | |
MET-L-CHEK VP-302 | Penetrant for high temperatures | |
MET-L-CHEK R-502 | Remover for high temperatures | |
MET-L-CHEK D-702 | Developer for high temperatures |
Special penetrant for temperatures of +52 °C to 177 °C
TYPE II, class 2
METHOD
- C Solvent-removable
Application in combination with
- Special remover MET-L-CHEK R-502 and
- Special developer MET-L-CHEK D-702


Special remover (class 3) fot temperatures of +52 °C to +177 °C
METHOD
- C Solvent-removable
Application together with
- Penetrant MET-L-CHEK VP-302 and
- Special developer MET-L-CHEK D 702


Special developer for temperatures of +52 °C to +177 °C
FORM
- f for special applications
Application together with
- Penetrant MET-L-CHEK 302 und
- Special remover MET-L-CHEK 502


TYPE I according to EN ISO 3452-2
Testing products named MET-L-CHEK consist of penetrants which are
(A) water soluble
(B) emulsifying
Different sensitivity levels (level ½ to 4) according to AMS 2644E are available.
Water-washable fluorescent penetrants
- Different levels of sensitivity
TYPE I
- Fluorescent
METHOD
- A Water
- C Solvent
Level 1/2 (very low sensitivity)
For application in general metal processing.



*** Qualified to AMS 2644E and QPL-2644 listed
Level 1 (low sensitivity)
- V.O.C.-free, environmentally friendly formula
- Devoid of heavy metals, fats, oils or lubricants (F.O.G.)



*** Qualified to AMS 2644E and QPL-2644 listed
** Pratt & Whitney PMC listed
Level 1 (low sensitivity)
- Application in general metal processing
- Approved for applications in aviation sector



*** Qualified to AMS 2644E and QPL-2644 listed
Level 2+ (medium sensitivity)
- V.O.C.-free, environmentally friendly formula
- Devoid of heavy metals, fats, oils or lubricants (F.O.G.)



*** Qualified to AMS 2644E and QPL-2644 listed
** Pratt & Whitney PMC listed
Level 2+ (medium sensitivity)
Broad application spectrum especially for aerospace and test laboratory applications at high demands.



*** Qualified to AMS 2644E and QPL-2644 listed
Level 3+ (high sensitivity)
- V.O.C. and F.O.G. free, biodegradable penetrant
- Free of heavy metals and solvents



*** Qualified to AMS 2644E and QPL-2644 listed
** Pratt & Whitney PMC listed
Level 3+ (high sensitivity)
- Broad field of applications
- Approved for areospace industry




*** Qualified to AMS 2644E and QPL-2644 listed
Level 4 (ultra-high sensitivity)
- Highest sensitivity and brightness
- For highly critical test application
- Environmentally friendly
- V.O.C.- and F.O.G.-free.



Post-emusifiable fluorescent penetrants TYPE I
*** Qualified to AMS 2644E and QPL-2644 listed
Post-emulsifiable testing products are availe at 3 different sensitivities (level 2 - 4).
METHODs to be applied are :
- B in connection with lipophilic emulsifier MET-L-CHEK E-57
- D in Connection with hydrophilic emulsifier MET-L-CHEK E-58 D, respectively
Level 2 (medium sensitivity)



Level 3 (high sensitivity)




Level 4 (ultra-high sensitivity)



Overview | Main features | |||
MET-L-CHEK NPU | * | Halogen-free, solvent-based | ||
MET-L-CHEK E-59 A | *** | Halogen-free, solvent-based | ||
MET-L-CHEK R-503 |
*** | Halogen-free, solvent-based | ||
MET-L-CHEK R-504 | *** | Halogen-free, solvent-based |
Applicable for most post-emulsifiable penetrants
Overview | METHOD | |||
MET-L-CHEK E-58 D | *** | D |
*** Qualified to AMS 2644E and QPL-2644 listed
- Concentrate
- Immersion bath: dilution with water 1:20
- Aufsprühen: dilution less than 5%
METHOD
- D Hydrophilic emulsifier



Overview | FORM | |||
MET-L-CHEK D-70 |
*** |
d & e |
||
MET-L-CHEK D-78B |
*** |
c | ||
MET-L-CHEK D-72A |
*** |
a |
||
MET-L-CHEK D-76B |
*** |
b |
*** Qualified to AMS 2644E and QPL-2644 listed
** Pratt & Whitney PMC listed
- For fluorescent penetrant testing
- Sputter disposition
- Light loosepowder
FORM
- a Dry developer acc. EN ISO 3452-2 and AMS 2644

*** Qualified to AMS 2644E and QPL-2644 listed
- Dry powder water soluble
- For emulsifiable fluorescent penetrant
- Application in wafer-thin, evenly, transparent layers
- No stirring necessary after dissolving of the powder
FORM
- b Wet developer


