Defence Spray booths & Finishing Systems
Defence Spray Booths & Finishing Systems
Engineered Environmental Control for Defence Infrastructure
Defence finishing facilities are not ordinary industrial spaces. They are regulated environments where coating integrity, environmental stability and delivery certainty directly affect asset durability and program timelines.
Junair designs and supplies high-specification spray booths and curing systems for defence contractors, defence primes and major infrastructure projects. Our systems are engineered to deliver stable airflow, precise temperature control and, where required, tightly controlled humidity conditions to support advanced military coating systems.
Features that set Junar as the Defence Industry choice in Spray booths.
Defence Coatings.
Defence coatings — including CARC systems and specialist protective finishes — are sensitive to environmental variation.
Junair systems maintain consistent spray, flash-off and bake conditions, ensuring repeatable film build, controlled solvent release and reliable curing performance.
Finishing Facilities.
In modern defence programs, finishing facilities are often delivered within large construction frameworks managed by Tier 1 contractors. These organisations require technically credible subcontractors who present minimal delivery risk.
Junair provides detailed engineering documentation, defined interface coordination, commissioning support and national service capability, ensuring smooth integration within complex infrastructure projects.
Large Defence Assets.
Large defence assets — including armoured vehicles, aerospace assemblies and structural systems — require carefully engineered airflow distribution.
Junair booths are designed to deliver balanced, laminar airflow across extended surfaces, reducing contamination risk and minimising rework.
Energy Efficiency.
Energy efficiency is critical in high-duty defence facilities.
Junair integrates intelligent airflow reduction, recirculation strategies and auxiliary airflow systems to reduce lifecycle energy consumption without compromising environmental precision.
Layout, Planning, Commissioning & Installation.
From facility layout planning through installation and commissioning, Junair operates as a total finishing solution provider. We deliver engineered, compliant and low-risk finishing environments for mission-critical defence programs.
Frequenty Asked Defence Industry Questions
Are Junair spray booths suitable for aerospace and defence environments?
Yes.  Junair designs engineered coating environments for regulated aerospace and defence manufacturing and sustainment facilities.
These environments require:
- Stable airflow
- Structured curing cycles
- Temperature control
- Optional humidity control
- Process repeatability
Junair systems are engineered to suit defined performance criteria rather than adapted from standard automotive configurations.
What airflow configurations are available for aerospace and defence applications?
Junair designs airflow architecture to suit the specific coating process, component geometry and facility constraints.
Configurations may include:
- Full downdraught systems
- Cross-draught systems with supply plenums integrated into access doors
- Semi-downdraught systems
- Custom air distribution layouts engineered for specific manufacturing programs
Large aerospace booths may utilise cross-draught airflow with supply plenums built into the access doors to achieve uniform air distribution across long fuselage or structural components. In other defence applications, semi-downdraught configurations may be engineered to suit building constraints and operational requirements.
EVAC (in-ground plenum) and LEVAC (raised floor extraction) systems are available where appropriate. However, aerospace and defence projects are frequently engineered as fully customised airflow solutions rather than standardised configurations.
Airflow design is calculated to achieve:
- Balanced velocity
- Controlled solvent evacuation
- Minimal turbulence
- Uniform curing conditions
Do defence spray booths use standard automotive models?
No.
Defence applications typically require customised engineering due to:
- Specific coating system requirements
- Environmental performance specifications
- Facility constraints
- Program-specific workflow requirements
- Compliance and documentation needs
Junair frequently engineers bespoke solutions including:
- Custom airflow configurations
- Project-specific control logic
- Modified Siemens-based control architecture
- Integrated environmental control systems
- Tailored material handling interfaces
Defence spray environments are engineered to meet defined performance outcomes rather than supplied as standard catalogue products.
Do you provide precise temperature and humidity control?
Yes — where required by coating specification.
Junair can integrate:
- Controlled spray temperature
- Structured flash-off and bake cycles
- Active humidification systems
- Dehumidification systems
- Chilled air systems
Environmental control is designed around the coating system and substrate requirements, particularly where composite materials or advanced aerospace coatings demand stable curing conditions.
Do Junair systems provide data logging and process traceability?
Yes. Booths equipped with iSystem³ can log:
- Temperature
- Cycle duration
- Operational parameters
This supports internal quality assurance systems and audit traceability requirements common in aerospace and defence environments.
Spray booths themselves are not NADCAP-certified. However, Junair systems can be engineered to support the environmental control and repeatability expected within NADCAP-aligned facilities.
How is energy managed in large aerospace and defence booths?
Large-format aerospace booths can be significant energy consumers if airflow is not properly controlled.
Junair integrates:
- Variable Airflow Technology (VAT)
- Fuel Saver Mode (FS Mode)
- EcoMode airflow reduction
- QADsâ„¢ (Quality Air Drying System) auxiliary airflow
Fan speeds can be automatically adjusted according to process phase rather than operating at full airflow continuously. Recirculation during non-spray phases reduces heat demand while maintaining temperature stability.
Energy management functions are automated via iSystem³ where specified.
Can Junair integrate material handling systems?
Yes. Junair integrates material handling systems suited to aerospace and defence production environments, including:
- Overhead conveyor systems
- Floor rail systems
- Transfer trolleys
- Custom component handling frames
- Drive-through configurations where required
Material handling integration:
- Protects sensitive components
- Improves workflow efficiency
- Reduces manual handling risk
- Supports batch or controlled production models
Are the cabin wall panels fire-rated?
Yes. Junair spray booth cabin wall panels are constructed using non-combustible rock wool insulated panels.
Junair does not use EPS or PIR foam-core cooler-room panels.
Rock wool insulation is selected for improved fire performance, durability and compliance considerations.
Does Junair design complete aerospace and defence finishing environments?
Junair designs and delivers the engineered spray booth and coating environment package within larger aerospace and defence infrastructure projects.
Scope typically includes:
- Spray booth engineering and manufacture
- Air handling plant and ductwork design
- Environmental control integration
- Extraction system design
- Siemens-based control systems (iSystem³ where specified)
- Material handling interfaces
- Commissioning and performance verification
Junair operates as the specialist finishing systems contractor within the broader infrastructure project managed by the principal contractor.
Do Junair booths comply with Australian standards?
Yes. All Junair spray booths conform to AS/NZS 4114:2020 — the current Australian and New Zealand standard for spray painting booths.