ARMAFLEX 520 adhesive Armacell 2.5 L
€72.95 Incl. VAT
Armacell ArmaFlex 520 high-performance contact adhesive for bonding flexible ArmaFlex insulation materials. The fast-drying formula creates durable, vapour-tight joints, ensuring reliable installation of HVAC, refrigeration and air conditioning insulation systems, 2500 ml.
- Fast delivery across Europe (5-10 business days)
- 30-day returns
- No customs duties within the EU
- Secure payments
ArmaFlex 520 Adhesive For Bonding Flexible Insulation Materials
ArmaFlex 520 is a professional-grade polychloroprene contact adhesive specially developed for bonding flexible ArmaFlex insulation materials. Its fast-drying formula provides strong, durable and vapour-tight joints, helping to maintain the long-term thermal performance and energy efficiency of insulation systems.
Designed for professional HVAC, refrigeration and air conditioning applications, ArmaFlex 520 delivers excellent adhesion to metal surfaces and supports fast, reliable installation. The adhesive offers outstanding resistance to ageing and weathering, ensuring dependable performance in demanding operating conditions with service temperatures from -50 °C to +105 °C.
ArmaFlex 520 is suitable for bonding all flexible ArmaFlex insulation materials except ArmaPrene, ArmaFlex EPDM-based products, HT/ArmaFlex and ArmaFlex Ultima, which require their own dedicated adhesives.
KEY FEATURES & BENEFITS
- High-performance contact adhesive on polychloroprene basis
- Fast-drying formula for efficient installation
- Creates durable, vapour-tight insulation joints
- Excellent adhesion to metal surfaces
- Resistant to ageing and weathering
- Free of aromatic components
- Service temperature range: -50 °C to +105 °C
- Recommended application temperature: +15 °C to +20 °C
- Flash-off time: 3–5 minutes
- Open bonding time: 15–20 minutes
- Full curing time: approximately 36 hours
- Shelf life: 18 months in unopened containers
- 2500 ml
APPLICATIONS
ArmaFlex 520 is designed for the professional installation of flexible elastomeric insulation in HVAC, air conditioning, refrigeration and heating systems. It is ideal for bonding insulation on pipework, ductwork, fittings and other system components, creating durable, vapour-tight joints that help maintain long-term thermal efficiency and reliable insulation performance.
Always ensure that bonding surfaces are clean, dry and free from grease or dust before applying the adhesive. Clean dirty surfaces and the ArmaFlex surface with ArmaFlex Cleaner before starting the application with the adhesive.
ArmaFlex 520 is not suitable for surfaces coated with asphalt, bitumen or lead-based (linseed oil) paints.
The product is highly flammable and should be used in well-ventilated areas while following the manufacturer’s safety instructions.
| Weight | 2.5 kg |
|---|---|
| Dimensions | 175 × 175 × 135 mm |
| Product type | Adhesive |
| Volume (ml) | 2500 |
| Temperature range (°C) | 50 / +105 |
| Height (mm) | 130 |
| Width (mm) | 170 |
| Length (mm) | 170 |
| Weight (kg) | 2.44 |
| Color | Beige |
| Country of origin | Poland |
| Brand | ARMAFLEX |
| BAR/EAN | 7612207119176 |
| Manufacturer Code | ADH520/2,5E |
| Manufacturer | Armacell |
Related products
Armaflex 520 adhesive Armacell 0.5 L
ArmaFlex Cleaner 1 L – Professional Surface Cleaner, Armacell
ArmaFlex Cleaner 1000 ml professional surface cleaner formulated to prepare insulation and metal surfaces before bonding with ArmaFlex adhesive. It removes grease, dust and installation residues to improve adhesive performance, while also providing fast and effective cleaning of tools and application equipment after installation.
K-414 adhesive K-FLEX 0.5 L
K-414 adhesive K-FLEX 2.6 L
K-FLEX 110 adhesive thinner and surface cleaner 1 L
K-FLEX 110 Adhesive Thinner & Surface Cleaner professionally prepares insulation and metal surfaces before bonding K-FLEX elastomeric insulation. Improves adhesive performance, removes grease and contaminants, and quickly cleans brushes and application tools. Compatible with K-FLEX K 414, K 420 and K 425 adhesives. 1 L container.


























