What is Griffon Devmor used for?

This white developer spray is used to detect surface cracks, welding defects, and porosities in metals and non-porous plastics.

Can this developer be used on its own?

No, Devmor is always used as part of a three-step inspection system alongside Griffon Verimor (penetrant) and Griffon Primor (cleaner).

How does the developer reveal defects?

After applying and wiping off Verimor, spray Devmor. Any cracks appear after a few minutes as bright red lines against the white background.

What is the minimum application temperature?

Do not use this spray at temperatures of +5 °C or below.

How do you remove the white layer after testing?

You can easily remove the white developer layer using Griffon Primor cleaner.

GRIFFON DEVMOR developer for crack testing icm Primor/Verimor white (300ml spray can) - 1235612

Name: GRIFFON DEVMOR developer for crack testing icm Primor/Verimor white (300ml spray can) - 1235612
Brand: GRIFFON
SKU: 02084491
Price: 11.23 EUR
Availability: InStock

Supplier number: GRIFFON 1235612 | EAN 8710439918013

11.23 tax incl.

€9.28 excl. VAT (incl. all environmental contributions)

On stock - immediately available

Ordered before 20:00 - delivered tomorrow 02/10/2026
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL

✆ Talk to a specialist

Accurate crack detection by Griffon

Practical benefits

Sharp white background contrast: The white developer layer highlights defects as bright red lines so you spot hairline cracks immediately.
Versatile non-porous surface use: You reliably inspect metals and non-porous plastics for welding flaws, grinding defects, and fatigue cracks.
Safe chloride-free formula: Thanks to the chloride-free formulation, you carry out non-destructive testing without risking corrosion on sensitive surfaces.

In a nutshell

The right choise for

With the 300 ml Griffon Devmor developer spray, you can instantly detect microscopic surface defects that are invisible to the naked eye. This white developer spray serves as the crucial step in non-destructive penetrant testing alongside Griffon Primor and Griffon Verimor. Once applied, the white contrast layer draws the penetrant dye out of surface flaws, exposing hairline cracks, welding defects, and porosity as sharp red lines. Its chloride-free formulation ensures safe inspection on metals and non-porous plastics without damaging the material. Ideal for dependable maintenance inspections and rigorous quality control on welded joints and pipework.

Product information FAQ

€11.23

In stock - tax incl.

Key features according to our expert

Net volume: 300 ml
Principal hazard property: GHS02 Flammable
Packaging: Spray can
ADR packing group: Not applicable
ADR class: 2
UN number: UN1950
Relative density: 0,489
H-statements: H222; H229; H319; H336
Hazard class: GHS02 Flammable; GHS07 Harmful or irritant
Physical state: Aerosol
Flash point: -97 °C
P-statements: P101; P102; P210; P211; P251; P261; P410 + P412; P501

Product description:

White developing liquid for the detection of material defects (crack detection)in metals and non-porous synthetics.

Field of application:

For the detection of material defects (crack detection), such as quenchingcracks, fatigue cracks, porosities, grinding cracks, welding defects, and othersurface defects in metals and non-porous synthetics.
Use in combination withthe Griffon Primor and Verimor.

Properties:

Chloride-free
White

Precautionary statements

P101: If medical advice is needed, have product container or label at hand.
P102: Keep out of reach of children.
P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P211: Do not spray on an open flame or other ignition source.
P251: Do not pierce or burn, even after use.
P261: Avoid breathing dust/fume/gas/mist/vapours/spray.
P410 + P412: Protect from sunlight. Do no expose to temperatures exceeding 50°C/ 122°F.
P501: Dispose of contents/container to ... (see safety data sheet).

Hazard statements

H222: Extremely flammable aerosol.
H229: Pressurised container: May burst if heated.
H319: Causes serious eye irritation.
H336: May cause drowsiness or dizziness.

All Features

Net volume: 300 ml
Principal hazard property: GHS02 Flammable
Packaging: Spray can
Adr packing group: Not applicable
Adr class: 2
Un number: UN1950
Relative density: 0,489
H-statements: H222; H229; H319; H336
Hazard class: GHS02 Flammable; GHS07 Harmful or irritant
Physical state: Aerosol
Flash point: -97 °C
P-statements: P101; P102; P210; P211; P251; P261; P410 + P412; P501
Content: 300 ml
Length: 59 mm
Width: 59 mm
Colour: White
Weight: 275 g
Height: 195 mm

Brand GRIFFON
02084491
EAN 8710439918013
Supplier number GRIFFON 1235612

Frequently asked questions about this product

Answered by specialists

What is Griffon Devmor used for?: This white developer spray is used to detect surface cracks, welding defects, and porosities in metals and non-porous plastics.
Can this developer be used on its own?: No, Devmor is always used as part of a three-step inspection system alongside Griffon Verimor (penetrant) and Griffon Primor (cleaner).
How does the developer reveal defects?: After applying and wiping off Verimor, spray Devmor. Any cracks appear after a few minutes as bright red lines against the white background.
What is the minimum application temperature?: Do not use this spray at temperatures of +5 °C or below.
How do you remove the white layer after testing?: You can easily remove the white developer layer using Griffon Primor cleaner.