Weicon A Steel-Filled Epoxy Resin

Weicon A Steel-Filled Epoxy Resin is a two-component epoxy system highly filled with steel pigments and formulated with a paste-like consistency. It is positioned as an industrial adhesive and repair compound used to fill surface defects such as corrosion damage, pitting, holes, and casting voids, helping restore the part closer to its original form. Thanks to its paste form, it has low sagging tendency and can also be applied on vertical surfaces. The product is manufactured by WEICON GmbH & Co. KG and originates from Germany.

Repair and gap compensation with Weicon A epoxy
The steel-filled structure helps rebuild the repaired area on metal surfaces with a “metal-like” character and provides magnetic properties in certain applications. This approach can be considered a practical alternative where welding repair is difficult or risky, as it enables intervention without causing thermal distortion. The product can combine filling and bonding as an industrial adhesive in maintenance tasks such as addressing corrosion-related material loss on tanks and pipelines and sealing holes and voids in cast parts. Having DNV certification is an important reference point for companies seeking technical suitability, especially in marine applications and related maintenance processes.

Technical structure and performance characteristics of the steel-filled epoxy
The system is epoxy-based and reinforced with steel filler in a paste consistency, making shaping and gap filling more controllable. Since the pot life is specified as 60 minutes at 20 °C for a 200 g mix, planning the mixed quantity to be applied within this time frame becomes easier. After curing, compressive strength is specified as 80 MPa, tensile strength as 21 MPa, and flexural strength as 34 MPa; hardness is given at Shore D 90, and low shrinkage (0.015%) is intended to support dimensional stability. The temperature resistance range is given as -35 °C to +120 °C, offering a predictable operating band for general industrial maintenance and repair applications.

Mixing ratio and application method
The mixing ratio is defined as 100:10 by weight (resin/hardener); maintaining the correct ratio is a critical step for consistent curing and mechanical performance. Completely removing oil, dirt, loose oxides, and weak layers from the surface—and increasing adhesion through mechanical roughening where possible—significantly affects industrial adhesive performance. Since the maximum layer thickness in a single application is specified as 10 mm, a staged filling approach provides more controlled results for deeper voids. The stated curing time to withstand mechanical loads is 16 hours, and 24 hours to reach final hardness, which helps define the process window for maintenance planning.

Sector-specific applications and compatible surfaces
It stands out for applications such as repairing corrosion damage on tank, pipe, and equipment bodies in the marine industry, and surface repairs on lines exposed to aggressive environments such as sewage systems. In machine manufacturing and maintenance/repair, it can be used around cracks on pump and motor housings, cast parts, and metal structures; it is also applicable in tool, model, and mold making for producing models/molds/templates and fixtures. Its paste consistency provides ease of application in field maintenance scenarios that require working on vertical surfaces and makes shaping needs more practical. For storage, it should be considered that the product is specified for use within 18 months in unopened packaging under dry conditions not exceeding +25 °C, and within 6 months after opening—important for consumable management.