Introduction to MIGUTAN Expansion Joint Systems

MIGUA is a leading European company specializing in the design, manufacture, and installation of expansion joint systems. Their MIGUTAN product line offers watertight, trafficable, and robust expansion joint solutions suitable for bituminous layers, coatings, liquid sealants, and concrete installations. These systems are widely applied in large infrastructure projects such as airports, train stations, industrial plants, parking decks, hospitals, and sports facilities.

Company Overview and Product Range

MIGUA provides over 600 expansion joint products across five brands, addressing diverse structural needs including heavy traffic loads, water resistance, and hygiene standards. Their products cover floors, walls, and roofs, emphasizing high quality and customer satisfaction.

System Description and Key Features

• Exchangeable center seals compliant with DIN 18195 ensure waterproofing against non-pressurized water.
• Profiles are made of high-strength aluminum with grooved brackets and elastic center seals resistant to weather, petrol, oil, de-icing salt, microbes, and bacteria.
• Long AAS sheets on both sides provide excellent adhesion to sealing layers such as bituminous or sheet seals.
• Stainless steel caps compress sealing elements uniformly, secured by torque-controlled screws for permanent watertightness.
• Center seals are replaceable without damaging the surface, facilitating maintenance.
• Full sealing across the entire joint guarantees 100% watertightness.
• Fire protection tested products meet Bfl-s1 classification (flame retardant, no burning/dripping) per DIN EN 13501-1.
• Custom prefabrication with precise on-site measurements ensures accurate profile connections and intersections.
• Special solutions comply with WHG § 19 water hazard regulations for sensitive environments.

Installation and Assembly Recommendations

• Use specific dowels and screws depending on profile height and sheet type, with recommended spacing of 300-350 mm.
• Swimming pool applications require higher-grade, pickled stainless steel alloys for chloride resistance.
• After installation, stainless steel cover cap screws should be retightened with a torque wrench (7 Nm) after 10-14 days.
• Profiles can be anchored using adjustable anchor rods or loop anchors welded to reinforcement for strong, flush concrete installation.
• Expansion gaps between profiles and concrete must be sealed with suitable PU sealant to maintain watertightness.

Product Categories and Applications

• Bituminous Seals (Long ASS Sheets): Designed for optimal adhesion to bituminous sealing layers, featuring long sheets, non-slip stainless steel caps, and durable aluminum brackets. Suitable for heavy traffic and high load capacities.
• Coating Systems (Short ASS Sheets): Short sheets provide watertight connections to various coating systems, with options for clip-open stainless steel caps for easy assembly.
• Liquid Seals (MIGUTRIX Foils – XA): Innovative liquid seal technology with fleece-concealed sheets for attachment under tiles, offering hygienic, antibacterial, and physiologically safe seals, ideal for swimming pools.
• Installation in Concrete (Anchor Rods/Loop Anchors): Profiles with rod or loop anchors allow strong, flush installation in concrete ceilings, adaptable to various load requirements.

Technical Specifications and Product Series

The document details multiple MIGUTAN profile series with key parameters:

• Joint Widths: Nominal widths range from 21 mm up to 120 mm depending on the series.
• Total Movement Capacity: Movement allowances vary from ±8 mm to ±60 mm.
• Joint Height: Heights range from 25 mm to 120 mm.
• Load Bearing Capacities: Load capacities range from 30 kN to 600 kN, supporting pedestrians, private cars, lorries, forklifts, and hard castors.
• Fire Resistance: Most profiles are fire tested to Bfl-s1 classification; some heavy-duty profiles are exceptions.

Examples of series include:

• FP 110 NI ls Series: Bituminous sealing layer profiles with joint widths up to 75 mm and installation height 60 mm.
• FP 130 NI ls Series: Bituminous sealing layer profiles with joint widths up to 100 mm and installation height 90 mm.
• FP 155 NI ls Series: Bituminous sealing layer profiles with joint widths up to 120 mm and installation height 120 mm.
• FP(G).../60 S NI ls Series: Heavy-duty bituminous sealing layer profiles with joint widths 35-110 mm and installation height 60 mm.
• FPG Series: Smooth central insert profiles for hygienic applications with antibacterial properties.
• FP Series for Coating Systems: Use short AAS sheets with connection joint filler profiles for economical and proper coating system integration.

Load Capacity and Standards

• Load specifications consider wheel contact patches of 200 x 200 mm for air-filled and solid plastic tyre trucks.
• Systems comply with DIN standards for load and fire resistance.
• Profiles with higher installation heights can be adjusted for increased load capacity upon consultation.

Installation and Adjustment

• Visual inspection and replacement of central inserts can be performed without surface disruption.
• Connection joints with filler profiles (e.g., AAP 50/20, AAP 110/23) enable proper and economical integration with coating systems.
• Installation should be performed by experienced companies following detailed instructions to ensure watertightness and performance.

Special Features and Variants

• Heavy-duty models designed for higher load capacities and heavy traffic.
• Smooth insert models for increased hygienic and antibacterial requirements.
• Structural stainless steel cover plates with various surface finishes for enhanced skid resistance and aesthetics.
• Flexible waterproofing systems with fibre fabric bonded sheets for excellent bonding under liquid membranes.
• Solid metal design profiles offering high load capacity with flexible sub-construction options.

Performance and Certification

• All systems provide 100% watertightness under maximum pressure conditions.
• Official test certificates for watertightness and fire resistance are available for most profiles.
• Profiles are designed to resist rust and corrosion, ensuring longevity in traffic environments.

Limitations and Recommendations

• Minimum joint widths are specified per series to ensure proper sealing and performance.
• Sealing is effective against nonpressurized water only.
• Fire resistance tests do not apply to some heavy-duty profiles and certain flexible waterproofing variants.
• Connection of fibre fabric bonded MIGUTRIX sheets to flexible waterproofing membranes must be tested per application.
• Custom fabrication for intersections and end terminations is available upon request.

Installation Examples and Practical Considerations

• Applications include raw concrete floors, hard-aggregate screeds, asphalt surfaces, insulated structures, parking decks, airports, and bridge renovations.
• Use of stainless steel cover plates for protection and load distribution, noting they do not accommodate settlement.
• Visual inspection and replacement of components can be done without surface disruption.
• Installation suggestions must be verified according to relevant construction requirements and technology rules.
• Coating systems OS 11 or OS 13 are recommended for surface protection; simpler sealing systems require prior coordination.

Legal and Technical Notes

• Specifications and processing suggestions reflect current knowledge but are non-binding and subject to change.
• Installation details are theoretical and may not represent actual objects.
• Technical changes may be made without notice; the latest version is available on the manufacturer's website.
• All texts and images are copyrighted by MIGUA Fugensysteme GmbH & Co. KG.

Summary

MIGUTAN expansion joint systems provide durable, watertight sealing solutions with exchangeable center seals for easy maintenance. They are suitable for a wide range of applications requiring resistance to water ingress, traffic loads, weather, chemicals, and fire. Installation requires adherence to specific doweling and sealing practices to ensure performance. Specialized products and materials are available for sensitive environments such as swimming pools and WHG § 19 regulated areas. Comprehensive technical data supports selection based on joint width, movement, load, and environmental requirements. Official certifications guarantee compliance with safety and quality standards, making MIGUTAN systems reliable for demanding infrastructure projects.