MixPac 50ml 4:1 Ratio 2-Part Empty Cartridges with sealing cap & EPDM pistons AA 050-04-10-03 (116676)

Product Name

MixPac 50ml 4:1 Ratio 2-Part Empty Cartridges with sealing cap & EPDM pistons AA 050-04-10-03 (116676)

Brief Description

This product consists of industrial-grade, silicone-free, 50ml empty dual cartridges designed for the precise storage and dispensing of two-part (two-component) adhesives, epoxies, silicones, urethanes, polyurethanes, and other reactive fluids and compounds. Featuring a 4:1 mix ratio, these cartridges ensure accurate proportioning of materials that require precise metering and mixing just before application. They come with a resealable cap and EPDM (Ethylene Propylene Diene Monomer) pistons, and are part of the "A-System" or "Square-Back" design.

Popular Applications & Uses

- Filling and dispensing two-part adhesives, epoxies, silicones, urethanes, and other two-part fluids and compounds.- Structural bonding applications requiring high strength.- Potting and protecting electronic components from moisture, dust, and thermal shock.- Sealing and protecting boat hulls in marine environments.- Bonding various building materials such as concrete, wood, and metals.- Repairing and filling cracks in concrete structures.- Securing bolts and anchors in load-bearing walls and columns.- Chemical anchoring and dowelling in construction.- Applications in protective coatings and flooring.- Field work, repair tasks, and low to high-volume assembly operations.

Industries that Commonly Use It

- Aerospace/Defense: For bonding structural aircraft components, and potting/protecting electronics.- Automotive Service/Repair: In manufacturing for structural bonding, and for brake/cooling systems, weather stripping, and seals.- Chemical Industry: For packaging and dispensing various two-part chemical formulations.- Construction/Building Services: For bonding, floor coatings, crack repair, anchoring, and general building applications.- Electrical Services or Products / LED/Electronics: For protecting electronic components, and as electrical insulators or connectors.- Energy: Used in solar power installations, wind turbines, and other alternative energy projects.- Fabrication / General Manufacturing / Metal Fabrication / Plastic Fabrication: For assembly and bonding processes requiring precise two-part material mixing.- Marine: For building, repairing, and sealing boats and ships.- Packaging Services or Contractor: For packaging two-component adhesives and sealants.- Transportation/Specialty Vehicle: For various applications within the transportation sector.

Special and Unique Features

- Designed for precise metering and mixing of two-part materials, ensuring optimal performance.- Industrial grade and silicone-free construction.- Features an "A-System" or "Square-Back" design for compatibility with specific dispensing equipment.- Includes a resealable cap for convenient storage of unused material, preventing premature curing.- Equipped with EPDM O-Ring / Rubber O-Ring style pistons.- Incorporates an automatic air-escape (self-venting) piston system that allows air to escape during insertion, minimizing voids and improving material flow.- Keeps the two adhesive components completely separate until a static mixing nozzle is attached for dispensing.- Compatible with a wide range of industry-standard manual, pneumatic, and battery-powered applicator guns.

Key Properties

- **Volume:** 50ml- **Mix Ratio:** 4:1 (by volume)- **Cartridge Material:** Polypropylene (PP)- **Piston Material:** EPDM (Ethylene Propylene Diene Monomer)- **Piston Type:** Solid form-factor EPDM O-Ring / Rubber O-Ring style, often self-venting/air-vented.- **Mixer Attachment:** Bayonet style- **Industrial Grade:** Yes- **Silicone Free:** Yes- **Temperature Tolerance (EPDM Pistons):** Approximately -50°C to +120°/150°C (-60°F to +250°/300°F) for seals.

Surface Compatibility

- **Cartridge (Polypropylene) is compatible with:** Most epoxies, silicones, urethanes, polyurethanes.- **Cartridge (Polypropylene) is NOT compatible with:** Acrylic-based formulas (MMA and MA).- **EPDM Pistons are compatible with:** Water, diluted acids, alkalis, alcohols, ketones, glycol-based fluids, phosphate ester fluids, silicone oils and greases, sodium hydroxide solutions, detergents, acetaldehyde, acetamide, ammonia, caustic potash solutions, brake fluids.- **EPDM Pistons are NOT compatible with:** Oils, fuels, greases, hydrocarbon-based lubricants, petroleum-based products, mineral oils, hydrocarbon solvents.

Known backups / known substitutes

- **Equivalent Nordson EFD Cartridge Part Numbers:** 7702896 and 7702721.- Other MixPac cartridge systems with varying mix ratios (e.g., 1:1, 2:1, 10:1) and volumes (e.g., 75ml, 200ml, 400ml).- Other brands of two-part adhesive cartridges designed for similar applications.- Bulk dispensing systems (meter-mix equipment) for very large-scale or automated dispensing applications.- Traditional bulk containers like pails, cans, tubs, or tubes for manual mixing and dispensing, though less precise.

Comparison Note

MixPac 50ml 4:1 Ratio 2-Part Empty Cartridges offer a significant advantage over one-part adhesives by enabling stronger bonds and faster cure times due to the chemical reaction initiated at the point of application. The two components are stored separately, contributing to a longer shelf life. This A-System cartridge features a common separation wall at the outlet, distinguishing it from the newer B-System cartridges which have separate outlets to further prevent cross-mixing. While the A-System's solid EPDM pistons may require a bleed strip or wire for air escape during filling, its self-venting design minimizes voids during dispensing. The precise mixing capabilities, achieved when used with a static mixer nozzle, are crucial for the proper curing and performance of two-part materials, which can be challenging to achieve consistently with manual mixing methods.