Epoxy filling is the process of dispensing epoxy resin systems — either single-component (1K) or two-component (2K) — into bottles, cartridges or other containers at commercial scale. It's a specialist operation that requires purpose-built equipment and careful process control.
A 1-part (1K) epoxy is a single-component system that cures under a specific condition — typically heat or UV light. It comes pre-mixed and is filled into a single container. Filling is relatively straightforward but the product's reactivity to heat and moisture means temperature-controlled storage and handling is critical throughout the process.
A 2-part (2K) epoxy is a two-component system — a resin (Part A) and a hardener (Part B) that are stored separately and only combined at the point of use. Filling requires two separate but precisely proportioned fills, typically into a dual-chamber cartridge or two separate containers sold together. The ratio of A to B must be exact — incorrect ratios produce a product that won't cure properly.
Standard filling lines are designed for low-viscosity liquids like water or thin oils. Epoxy resins are high-viscosity, chemically reactive products that require:
Businesses that typically use contract epoxy filling include adhesive manufacturers, construction chemical companies, marine maintenance product suppliers, automotive repair product brands and industrial MRO (maintenance, repair and operations) product distributors.
Many of these businesses have proprietary formulations but lack the specialist equipment — or the volumes — to justify running their own filling line. Contract filling is the practical solution.
FormFill Group operates chemical filling capability in South East Queensland including dual-stream dispensing for 2K epoxy systems. We work with businesses that need contract filling of adhesives, sealants and industrial chemical products into bottles and cartridges.