Air Spray Gun Filters & Accessories

About Air Spray Gun Filters & Accessories

Air spray gun filters and accessories are essential components for achieving professional-quality finishes in painting and coating applications. These products work behind the scenes to ensure clean, consistent spray patterns by removing contaminants from compressed air and paint before they reach your workpiece. From inline water traps and filter elements to replacement pots and syphon cups, these accessories maintain the performance and longevity of your spray equipment whilst preventing costly defects in your finished work.

Quality filtration is critical when working with modern coating systems, particularly HVLP (High Volume Low Pressure) and LVLP spray guns that demand exceptionally clean air supplies. Moisture, oil particles, and debris in compressed air lines can cause fish-eyes, orange peel, and other surface defects that require time-consuming rework. MyToolShed.co.uk stocks inline water traps from trusted brands like Draper that capture moisture before it reaches your spray gun, replacement filter elements to maintain optimal filtration, and practical accessories such as Sealey paint filter pots and syphon cups that keep your spray system operating at peak efficiency.

Applications

• Automotive Sprayers: Professional bodyshop technicians requiring contamination-free finishes on vehicle refinishing work
• Furniture Manufacturers & Restorers: Cabinet makers and French polishers applying lacquers, stains, and protective coatings
• Decorators & Painters: Professional painters using spray equipment for interior and exterior coating applications
• Woodworkers: Joiners and carpenters finishing custom joinery, doors, and wooden furniture pieces
• Industrial Finishers: Factory workers and coating specialists in manufacturing environments applying protective finishes
• DIY Enthusiasts: Home improvers and hobbyists investing in spray equipment for renovation projects
• Marine & Aircraft Refinishers: Specialist technicians working with high-performance coating systems requiring exceptional cleanliness

Choosing The Right Air Spray Gun Filters & Accessories

Compatibility: Always verify that replacement parts match your specific spray gun model. Check thread sizes (typically 1/4" or 3/8" BSPP in the UK), connection types, and whether components are designed for syphon feed, gravity feed, or pressure pot systems.

Filtration Requirements: Consider the type of coatings you're applying and the finish quality required. Water-based materials and automotive refinishing demand finer filtration (5-10 micron) compared to heavier industrial coatings. Inline water traps are particularly important in UK workshops where compressed air often contains moisture due to our climate.

Air Flow Capacity: Ensure filters can handle your spray gun's air consumption without causing pressure drops. HVLP guns typically require 10-14 CFM, so choose filters rated above your equipment's requirements to maintain optimal spray quality.

Maintenance Costs: Factor in the cost and availability of replacement filter elements. MyToolShed stocks disposable filters offering convenience and cleanable filters that reduce consumable costs over time. Keep spare elements in stock to avoid downtime during critical projects.

Safety Information

When working with air spray equipment, always follow HSE guidelines for respiratory protection and workplace ventilation. Wear appropriate PPE including respiratory masks rated for paint mist (minimum FFP2), eye protection, and protective gloves. Ensure all compressed air equipment is regularly inspected according to PUWER regulations. Never exceed maximum working pressure ratings marked on filters and accessories, as over-pressurisation can cause components to rupture. Maintain adequate workshop ventilation and ensure compressed air systems are properly earthed to prevent static discharge when working with flammable materials.

Frequently Asked Questions

How often should I replace spray gun filters?

Replace inline air filters every 3-6 months under normal use, or sooner if you notice reduced air pressure or spray pattern quality. Paint pot filters should be changed whenever you switch coating types or if material flow becomes restricted. Monitor pressure gauges before and after filters to identify when replacement is needed.

Do I really need an inline water trap for spray painting?

Yes, particularly in UK workshops where atmospheric moisture is common. Water contamination causes fish-eyes, poor adhesion, and blistering in painted finishes. An inline water trap positioned near your spray gun provides essential protection, especially when working with water-sensitive materials like polyurethane or catalysed coatings.

What micron rating do I need for my application?

For general purpose spray painting, 30-40 micron filters provide adequate protection. Automotive refinishing and high-quality furniture work benefit from 10-15 micron filtration. Very fine finishing work may require 5 micron filters. Consider using multi-stage filtration with coarser pre-filters protecting finer final filters to extend filter life whilst maintaining superior air quality.