FASTENERS AND JOINING/SEALING/SEPARATING 41
ANAEROBIC ADHESIVES FOR BONDING THE JOINTS TYPES T
hreeBond’s anaerobic 1300 series offers comprehensive solutions for bonding the joints of all types of threads, etc, preventing them from loosening or leaking. They are different from ordinary adhesives and sealants by the fact that they remain liquid so long as they are in contact with air, and as they enter fine gaps in metal parts and become isolated from oxygen, they harden at normal temperature without shrinking. The hardened adhesive is characterised by excellent vibration resistance, heat and chemical resistance, effectively bonding threads and joints and preventing loosening and leakage. Each product is one-part, non-solvent based with good workability and easy use. Typical applications are in thread locking of all types of bolts, studs etc, retaining nuts or sealing threaded joints, eg in hydraulic systems, practically anywhere and everywhere. The 1300 series is suitable for fixing/ sealing of motor shafts/rotors, pulley or gear
fixing, location of bearings, bushes, sleeves, splines, tubes and Welch type core plugs. Indeed, so good is the fine capillary action that some 1300 anaerobic adhesive can even be applied after assembly. Performance of the 1300 series is characterised by quick hardening at room temperature, little shrinkage, excellent oil, chemical, vibration and weathering resistance. Ease of use is greatly aided by good reactivity even on inert materials such as plated surfaces including zinc chromate chromium and nickel-chromium without the need for an activator. Anaerobic adhesives and sealants (AAS) are broadly defined as compounds which polymerize and harden when isolated from air between two adjacent faces, so as to be suitable for locking metal parts, sealing and fastener fitting.
Upon polymerisation, AAS turns to resin of dense three-dimensional reticular structure, which has excellent anti- corrosiveness, solvent resistance, thermal resistance, and ageing resistance.
Since no solvent is involved, the polymerisation produces little contraction and so is extremely suitable for fixing and sealing of fittings, pipe and flanges. The polymerisation of AAS requires three conditions: a. Isolation from air (oxygen); b. Contact with metal; c. Appropriate temperature. The reaction between peroxide and metal ion produces an initial radical to start the polymerisation. As a consequence of these complicated series of reactions, very strong three-dimensional reticular structures are formed. Meanwhile, ThreeBond TB1220 series are silicon sealants with a difference – this zero-alcohol range of products show major advances in terms of curing speed and storage. The full range of TB1220/21/22B/22C and /25B has minimal effect on metal components, eg copper, because they contain no alcohol, also they have little effect on plastics. n
For further information, visit
www.threebond.co.uk
Providing superior solutions! Polymerisation Formulation Coating Converting
Laminating
Lohmann GmbH & Co. KG Irlicher Strasse 55 56567 Neuwied/Germany Phone: +49 2631 34 - 0 Fax: +49 2631 34 - 6661
info@lohmann-tapes.com www.lohmann-tapes.com
Die Cutting
Quality testing
We convert adhesive tapes to rolls, spools or die-cuts at various global locations. Designing effective tape attachement methods is our strength. With state-of- the-art manufacturing equipment and a highly trained workforce, we develop tailor-made-solutions to optimise our customer’s assembly processes.
Circle 41 or ✔ at
www.engineerlive.com/ede
Application
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72 |
Page 73 |
Page 74 |
Page 75 |
Page 76 |
Page 77 |
Page 78 |
Page 79 |
Page 80 |
Page 81 |
Page 82 |
Page 83 |
Page 84