Not every cure step happens at a fixed station. Repairs, rework, and large fabrications often need the lamp brought to the part. The Incure F400 is a portable UV flood curing lamp that delivers a uniform curing field in a hand-movable package, so light-curable adhesives and coatings can be cured wherever the work is.

What the F400 Is

The F400 is part of Incure’s F-Series arc flood lamp line. It produces a broadband ultraviolet output over a flood field suited to bonding, sealing, and coating tasks that a spot lamp cannot cover in one exposure. Its portability makes it useful both as a primary cure tool for low-volume work and as a secondary tool alongside a fixed line.

Where Portability Helps

• On-site and in-place repair: Cure a bonded joint or a touch-up coating without moving the assembly to a curing station.
• Large or awkward parts: Reach areas of a fabrication that will not fit under a benchtop head.
• Restricted-access features: Position the field where a fixed enclosure cannot.
• Prototyping and short runs: Cure light-curable materials during development without dedicating a station.
• Inspection and containment: Apply a localized cure during quality checks or field service.

Understanding Flood Field and Dose

A flood lamp illuminates a rectangular area with a controlled irradiance in mW/cm². The energy the coating absorbs is the UV dose: irradiance multiplied by exposure time. With a portable lamp, hold the working distance constant, because irradiance falls off steeply as the head moves away from the surface. A simple standoff jig or spacer keeps the dose predictable from cure to cure.

Selecting and Using the F400

• Wavelength and spectrum: Confirm the lamp output overlaps the photoinitiator absorption in your adhesive or coating.
• Field coverage: The uniform window should cover each bond in a single exposure; larger areas need indexed exposures with overlap.
• Exposure time: Derive it from the material’s target dose and the measured irradiance at your working distance.
• Eye and skin protection: Operators must wear UV-blocking eyewear and keep the beam contained; the field is bright enough to cause injury on direct exposure.
• Duty cycle: Allow the cooling cycle between exposures that the lamp specifies.

Keeping a Portable Cure Repeatable

The main risk with a hand-positioned lamp is inconsistent working distance. Irradiance falls roughly with the square of distance in the near field, so a head held 30 mm away instead of 20 mm can deliver less than half the intended energy. Three practices control this:

• Use a standoff: A simple spacer, bracket, or fixture that sets the head at a fixed height off the part.
• Verify with a radiometer: Measure irradiance at the intended working distance and calculate exposure time from the material’s target dose.
• Check cure, not just appearance: A film can look glossy and still be under-crosslinked. Confirm with a solvent rub or hardness check on a sample. The guide to selecting a UV lamp for resin curing covers matching source output to a material’s dose need.

Portable Versus Fixed Curing

A portable flood lamp is the right tool when the assembly cannot move, when the cure point changes from job to job, or when the volume does not justify a dedicated station. Once the same part runs in quantity at a fixed location, a benchtop head or an enclosed chamber gives better dose consistency, operator protection, and throughput. Many shops keep a portable F-Series lamp for rework and field service alongside a fixed line for production.

Handling Larger Areas

When the cured area is bigger than the uniform field, index the lamp across it in overlapping steps. Overlap each pass by 15–20 percent of the field width so the seams are not under-dosed, and keep the same working distance and dwell time for every step.

For help selecting the right F-Series model and field size for your work, Email Us.

Applications

The F400 suits field bonding and sealing, assembly rework, coating repair on large panels, prototype development, and any process where the cure must travel to the part. For fixed benchtop work with smaller parts, a chamber or a mid-size flood head is often the better fit; the guide to matching a cure chamber to lamp and part size covers that comparison.

Maintenance

Keep the emitting window clean, since contamination lowers delivered dose before any obvious failure. Replace the bulb at its rated service life rather than waiting for a cure defect, and verify irradiance periodically with a band-matched radiometer.

Frequently Asked Questions

Q: Can the F400 replace a fixed curing station?
A: For low volume, rework, and jobs where the part cannot move, yes. Once the same part runs in quantity at one location, a fixed head or a chamber gives better dose consistency and operator protection.

Q: How do I cure an area larger than the lamp field?
A: Index the lamp across it in overlapping steps, overlapping each pass by 15 to 20 percent of the field width, and keep the same working distance and dwell time for every step.

Q: What protective equipment does an operator need?
A: UV-blocking eyewear rated for the lamp’s output, and a work practice that keeps the beam contained and off skin. The flood field is intense enough to cause injury on direct exposure.

To specify an F400 or another F-Series lamp for your process, Contact Our Team.

Visit www.incurelab.com for more information.