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GracoRoberts supplies composite bonding systems for applications where joint strength, weight efficiency, and long-term durability are critical. Our portfolio includes structural paste adhesives, epoxy film adhesives, core splice adhesives, and syntactic systems sourced from leading manufacturers and qualified to aerospace and defense program requirements.
Whether you are bonding composite skins to honeycomb core, joining dissimilar materials in a structural assembly, or sealing edges on a composite panel, our bonding systems support the full range of composite joining processes from prototype through production.
Explore our adhesives range for the complete product catalogue, or read on to understand how to select the right bonding system for your application.
This overview helps engineers and procurement professionals compare bonding system formats for structural, core, and surface composite applications.
Two-part epoxy and methacrylate paste adhesives for bonding composite assemblies where high peel strength, elevated temperature performance, and gap-filling capability are required. Used in airframe assembly, control surface bonding, and structural repair.
Supported and unsupported film adhesives for composite-to-composite and composite-to-metal bonding. Film adhesives provide controlled bondline thickness, consistent coverage, and high structural performance in autoclave and out-of-autoclave cure processes. Available in a range of areal weights to suit layup requirements.
Foaming and non-foaming core splice systems for joining honeycomb core sections in sandwich panel construction. Designed to fill gaps, bond core-to-core interfaces, and maintain panel integrity through thermal and mechanical cycling.
Low-density epoxy syntactic systems and void-filling compounds for edge filling, potting, and core replacement applications. Used where weight is critical and structural continuity must be maintained through complex geometry.
Structural film and paste adhesives support primary and secondary bonding in airframes, control surfaces, and nacelles, delivering high peel and shear strength while minimising fastener count and overall weight.
Core splice adhesives and film adhesives are designed for sandwich panel manufacture, bonding skins to core, joining core sections, and sealing panel edges without compromising structural performance.
Lightweight paste and film adhesive systems support composite bonding in UAV fuselage and wing assemblies where strength-to-weight ratios and cure temperature constraints are key selection factors.
Fast-cure paste adhesives and syntactic compounds support in-service repair of composite structures, providing qualified bond performance in field and depot maintenance environments.
Our composite bonding systems help engineers and procurement teams select the right adhesive chemistry, form factor, and cure schedule to meet structural, processing, and qualification requirements.
Epoxy film adhesives are compatible with autoclave and press cure processes and can be supplied in slit widths and short rolls to suit layup requirements. Paste adhesives are available in cartridge, semkit, and bulk formats to match dispensing equipment and production volume.
We work with customers on adhesive selection, cure schedule optimization, and surface preparation requirements to ensure bondline performance meets program specifications. Our surface prep and primers page covers pre-bond treatments compatible with these systems.
We support qualification workflows for composite bonding systems, including lot traceability, shelf life management, and certificates on request. Our team can guide data sheet review, process compatibility, and approved sourcing to help meet program and regulatory requirements.
What we provide:
Need help selecting or qualifying a bonding system? Talk to our team about composite bonding solutions tailored to your build and documentation requirements.
We supply structural paste adhesives, epoxy film adhesives, core splice systems, and syntactic compounds from leading manufacturers including Henkel Loctite, 3M, Huntsman, and Solvay. Products are available across a range of cure temperatures and areal weights to suit different process and performance requirements.
Film adhesives provide a controlled bondline thickness and consistent coverage, making them well suited to large-area bonding in autoclave processes. Paste adhesives offer more flexibility for complex geometry, gap-filling, and out-of-autoclave or field repair applications. Share your process constraints and performance targets and our team will recommend the right format.
Yes. We offer kitting and converting services so film adhesives and process materials arrive in the exact format your line requires. See our short roll composites service for more information.
Yes. We offer certificates on request, COA and COC, lot traceability, and shelf life management to support qualification and program compliance.
