The Polyester Resin Grey 410ml JF380P is a two-component, styrene‑containing injection (chemical anchor) resin supplied in a ready-to-use cartridge for fixing threaded rod, rebar and other anchoring elements into concrete, brick and masonry. Its primary use is medium‑duty bonded anchoring where mechanical expansion anchors are unsuitable or where load transfer through the adhesive bond is preferred, for example in retrofit fixings and repair work.

JF380P is an unsaturated polyester resin, grey in colour, supplied as a 410ml twin‑chamber cartridge with static mixing nozzle for application with a standard caulking gun. The product is manufactured under an ISO 9001 quality system and supplied with technical data on pot life and cure times; set and cure are temperature‑dependent (shorter at higher temperatures, longer at cold). Thread type and head/drive type are not applicable to the resin itself – it is compatible with standard metric threaded rod and rebar (typical sizes M6–M30) including galvanised and stainless steel.

Typical applications include anchoring safety railings, balustrades, steelwork bases, cable trays, mechanical and electrical fixings, and facade brackets in construction, utilities, telecommunications and refurbishment projects. It is commonly used where drilling into painted or uneven substrates makes mechanical anchors impractical, and for recessed or blind fixings in solid and hollow masonry.

Key benefits of the polyester resin are its strong adhesion to porous substrates, cost‑effective cure profile for medium‑duty anchors, and suitable resistance to water and common environmental factors encountered in building maintenance. While not recommended for continuous chemical immersion or where the highest structural approvals are required, it provides dependable bond strength for many general anchoring tasks; designers should verify tensile and shear capacities against substrate conditions and fixing geometry. The resin is compatible with stainless and galvanised fixings and offers a practical service temperature range for typical UK applications.

Duchy Fasteners stocks the JF380P 410ml cartridge with mixing nozzles, available singly or in multi‑packs, and supplies a full range of complementary products including injection capsules, threaded rod in various grades and sizes, and installation accessories. Please contact Duchy Fasteners for size and pack availability.