Met-L-Chek® D-702 - High Temperature Inspection Developer
Overview
Technical Data SheetMet-L-Chek® D-702 is a special application high temperature inspection developer, form “f”, used with Met-L-Chek® VP-302 to enhance detection of surface cracks and porosity on hot surfaces. Met-L-Chek® D-702 dries quickly and produces a thin white film, which is easily removed with water after inspection.
Commonly used in field welding and welding repair inspection, D-702 is also used in the inspection of refinery processing equipment at elevated temperatures. Met-L-Chek® D-702 reduces inspection process time by eliminating the total cool down period required for standard penetrant.
APPLICATIONS
- Surface crack detection
- Porosity of hot surface detection
- See full list of approvals below
FEATURES
- Use range of 51.6 ˚C – 176.6 ˚C (125˚F -350˚F)
- Low in sulfur, chlorine, fluorine and other halogens
- Safe on titanium and high nickel alloys found in nuclear components
- Reduces inspection process time by eliminating the total cool down period required
NDT Material Classification
TEST METHOD
Penetrant Testing – High Temperature Developer
TYPE
Visible: Type 2 (special application) – Visible High Temperature Penetrant Only
METHOD
Visible: C – High Temperature Remover Only
FORM
Visible: f
- Use range of 51.6 ˚C – 176.6 ˚C (125˚F -350˚F)
- Milky liquid, clear after standing/white sediment
- Low in sulfur, chlorine, fluorine and other halogens
- Safe on titanium and high nickel alloys found in nuclear components
- Spray On
| Authority | Specification | 
|---|---|
| ASME | ASME B&PVC, Section V | 
| ASTM | ASTM E-165 | 
| ASTM | ASTM E-1417 | 
| Department of the NAVY | NAVSEA-250-1500-1 | 
| ISO | ISO 3452-2 | 
| Military | MIL-I-25135C, Interim AM-4 | 
MCGEAN’S FULL PRODUCT DISCLAIMER CAN BE FOUND HERE
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                Test MethodPenetrant Testing – Developer TypeFluorescent: Type 1 Method
 Visible: Type 2Fluorescent: A, B, C & D Form
 Visible: A, B, & CFluorescent: d 
 Visible: e
- Met-L-Chek® D-72A – Dry Powder Developer
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                Test MethodPenetrant Testing – Developer TypeFluorescent: Type 1 MethodFluorescent: A, B, C and D FormFluorescent: a 
- Met-L-Chek® D-76B – Water Soluble Developer
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                Test MethodPenetrant Testing – Developer TypeFluorescent: Type 1 Method
 Visible: Type 2Fluorescent: B, C & D Form
 Visible: B & CFluorescent: b 
 Visible: b
- Met-L-Chek® D-78B – Water-Suspendible Developer
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                Test MethodPenetrant Testing – Developer TypeFluorescent: Type 1 Method
 Visible: Type 2Fluorescent: A, B, C & D Form
 Visible: A, B & CFluorescent: c 
 Visible: c
 
                                             
                                             
                                            