PRODUCTS New fire retardant epoxy adhesives
ITW Devcon has developed two new fire retardant epoxy adhesives for bonding metals, fabrics, ceramics, wood, vinyls and concrete for use in the aerospace, marine, electricity generation and rail industries.
T
hese new IFR adhesives are white, two-part self extinguishing structural epoxy systems. They include a five minute working time version with a fast cure time (one hour) and a 10 minute non-sagging version which cures in three hours and is suited for use on vertical and overhead surfaces.
The products are available in cartridges, are easy to mix and can be applied using a dispensing gun. ITW Devcon says that both systems come with very high performance levels. The five minute version includes a tensile lap shear
strength of 11.9MPa, service temperature range of -40°C to +93°C, and a shelf life of two years. Both versions meet the requirements of FAR 25.853 [a] [60 Second Vertical Burn Test], FAR 25.853 [d] Smoke Density and BSS 7239 Toxicity of Combustion Gas – Flaming Mode UL 94 V-O. No halogenated flame retardant additives are used in the formulations and these approvals make the adhesives ideally suited to the needs of the aerospace sector. ITW Devcon points out that a key environmental benefit is the fact that less smoke is created if the material burns. Other benefits
include fast cure, noise and vibration dampening, low coefficient of thermal expansion, lightweight but strong and flexible long- lasting bonds, high corrosion and fatigue resistance, as well as good impact and peel strengths. “These adhesive systems lend themselves to use in a number of different types of applications such as potting inserts, edge sealing of aircraft interiors, and applications where a self-extinguishing structural epoxy system is required.”
Aptino® I Aptino® and iForm™.
of customers for the practical and ease of assembly for solar installations. Inox Mare points out that its mounting system has been designed to withstand snow and all weather conditions. Inox Mare has also recently opened a new 9,000 square metre warehouse, with storage space for 10,000 pallets, in Bologna, a
W thread-forming fastener
Infastech™ has introduced Aptino®, a new thread-forming fastener for thermoplastic materials, to its iForm™ brand.
nfastech™ explains that the steep pitch of Aptino® trailing flank is designed to reduce radial
thread-forming stress in thermoplastic moulded bosses/nut member applications. The Aptino® thread profile also enhances resistance to pull-out and vibration loosening forces associated with typical field use. The Aptino®
thread-form delivers a narrow tip asymmetric profile which efficiently displaces material
and therefore requires minimal drive-torque to form an internal thread. The steep trailing flank minimises plastic deformation resulting in high resistance to internal thread strip out. The Aptino® thread root is designed specifically to reduce radial stress resulting in an optimum fastening solution where restrictive size and maximum strength is critical. Reduced radial stress enables a reduction of boss wall thicknesses and thermoplastic material usage and further lowers manufacturing cost.
fasteners can be manufactured in thread sizes from 1mm to 6mm, in a wide range of materials and surface finishes
along with various head styles and drive systems. Infastech™ is a producer of engineered mechanical fasteners with applications across diverse market sectors including electronics, aerospace, construction, automotive and industrial. The Infastech™ portfolio includes the lead brands of Avdel® Elco®
, Inox Mare offers robust fastening system
Inox Mare, based in Rimini, Italy, has developed a long term mounting stainless steel fastening system for solar installations, which it says is both robust and durable, and is easy to use regardless of the various types of roof structures.
ith nearly forty years of experience in the field of stainless steel fasteners and fixing devices, Inox Mare has combined its technical expertise and produced a high quality system which it says satisfies the needs
strategic point of the peninsula which allows Inox Mare to rapidly forward the goods all over Italy and abroad. “We handle more than 25,000 stainless steel standard metric
screws, nuts and bolts, stainless steel fastening systems for solar installations, marine accessories and fittings. Thanks to the vastness and the efficiency of our warehouse we are able to deal with over 300 orders a day and can send goods within 24 hours from the receipt of the order.”
144 Fastener + Fixing Magazine • Issue 72 November 2011
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