No_4_1955 — Page 50

For the gluing of wood to wood, or to laminated plastics, resorcinol

As- wood

excellent cold-setting, resins provide an expanded

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that possesses, gap-filling adhesive addition to the advantages common to all

The excellent performance of resorcinol- some forms of epoxy resins, they approach formaldehyde resins for the assembly gluing most nearly to "all-purpose" glues. of wood has led to renewed interest in bestos, brick, concrete, cork, adhesives of this type. If the criterion of materials. laminated plastics. unglazed performance is to be durability under porcelain, rubber, wood are among the thermo-setting resins, the capacity to severe conditions, it is possible to achieve materials that can be satisfactorily bond- withstand prolonged immersion in boiling equally successful results with the more

ed; metals, unfortunately, are not included water. Thus, while owing to their high simple and much less costly 'Aerolite'

in this range.

cost resorcinols are rarely used for ply- urea-formaldehyde resins and that a dis-

wood manufacture (except in small quan- cussion of performance based arbitrarily A further important application for re- tities in conjunction with phenolics) or upon chemical classification of resins may sorcinol resins is the gluing of phenolic- large-scale veneering, they have do less than justice to outstanding pro- impregnated materials such as 'Durestos' applications for assembly work, especially ducts and at the same time exaggerate the to form laminated structures whenever for the bonding of dissimilar materials potentialities of inferior resins of similar lightness must be combined with rigidity and for gluing wood components to con

and strength. Resorcinols, being closely form to BS. 1204, B. 100 and C. 100. Nevertheless, there is general agreement related to phenolics, are particularly suit- In the Hong Kong and Singapore areas that resorcinol resins, as a class, have able for the production of low-pressure Aerolite' and 'Aerodux', which are made valuable properties that justify their use laminates of this kind. They have the by Aero Research Limited, of Cambridge, for specialised applications in many indus- further advantage of setting under sub- England, obtainable through CIBA,

Of all adhesives, except perhaps stantially neutral conditions.

(China) Limited.

but not identical formulation.

tries.

are

This double lap joint of European Redwood glued with 'Aerolite' synthetic resin glue was tested to destruc- tion. At a load of 7 tons, fracture occurred in the wood but the glue line remained intact.

This is an instance of the strength of 'Aerolite'

builder's and woodworker's glue.

the modern

many

'Aerolite' stands the stress of 71⁄2 tons.

(SYNTHETIC RESIN GLUE)

Equally important are its durability, its complete resistance to moisture.

even to years of immersion in water, and its immunity to attack by moulds, and

micro-organisms. This is why 'Aerolite' is being used increasingly in the building and

woodworking industries to-day, for roof trusses, flush doors, sills, frames and alt kinds of wood. working processes, particularly under severe weathering conditions.

‘Aerodux' - the all-purpose glue.

A cold-setting gap-filling adhesive, resistant to boiling water, for bonding wood and various other materials which include:- asbestos, brick, concrete, and unglazed porcelains, cork, expanded materials such as Onazote, laminated plastics such as Formica and Warerite.

products of AERO RESEARCH LIMITED

DUXFORD, CAMBRIDGE, ENGLAND.

a CIBA factory

Further Particulars may be obtained from the Representatives CIBA (CHINA) LIMITED

FRENCH BANK BLDG., 1st FL.

5 QUEEN'S ROAD, C., HONG KONG

TELEPHONE: 14009

Sole Distributors for 'Aerolite' in Hong Kong

SCIENTIFIC serviCE COMPANY

447/448, ALEXANDRA HOUSE,

SERVICE

HONG KONG.

TELEPHONES: 27420, 37686.

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