FOSCOTE R. S. RUST
DESTROYER
Foacote R.S. la primarily a destroyer They provide an absorbent rosling It is admitted that phosphate coal- of rust. It converts rust by normal which Is non-metallic. chemically togs are gand under-surfaces for chemical aetion to a mixture of neutral, and which preserves the fe paints. It is equally well known that compounds which can conveniently be of palti Anishes For larg structures cust is a bad surface as most people called Iron phosphates, hence the tile which cannot be immersed in a phos- ago that "Tust som comes through "Fosente," implying phosphate coat- phating bath. this [V product, paint" and spolls the anish. For this ing The letters R.S. are merely for Foscote R.B., dan be brushed-an when reason agulon is necessary to remove Identification but have a descriptive it will convert the rust, into a complex the rust before painting. Methods su Interpretation, LA. Ruat-Sealing, canting of Iron phosphates. I far avaliable have been expensive in Rust-Suppressing. Rust-Solvent. Re- achieves this result brcuitse pa sub- terms of labour costs such as wire sequent water washing is needed. brushing, shot, blasting, or have been complicated because they Involve What is the value of having a coat- There are many products for chemical pickling with
pickling with subsequent ing of iron phosphates instead of a ordinary derusting. These merely washings and drying
One dissolva and suften rust which allows
Surfacer.
coating of iron oxide, Le rust?
way of answering this question is to it to be wiped off. Foscote RS is be found in the history of the Wal- brushed on and left un The rust, terisation Company who produce instead of being removed, is converted Foscote RS.
intu a useful product. The end result of sich a treatment is the formation R.9. was first put on the market in oi a rust Inhibiting surface which is 1949, roughly ten years after the Company Brst started Its Croydon a far better one than if all the rust factory manufacturing and market had been removed and paint applied ing the Walterisation but immersion to a completely rust-free surface. phosphate coating process [or the treatment of clean fron ur steel BUFTACES.
The result of using the Foscote R.S produce is to achieve on existing structures. and on rusty parts that cannot for could only with greal difficulty process bath, a rust inhibiting coating. be immersed to a hot
of comparable quality to the widely used hot Immersion of spray-phos- phating treatments.
This remarkably valuable result is Extensive laboratory tests, includ- obtained by a simple chemical action ing corrosion resistance examination tilising the basic principle of the using natural weathering exposure The Coating obtained by this hot original Walterisation Invention the to various Industrial and marine Immersion treatment is a very pure employment of an activated complex atmospheres; acrelerated tests such ferrous phosphate and is used for of no phosphates together with as sult Spray and or humidity: paint pre-treatment or as an absor- sufficient free acid to keep the Iron together with practical tests bent for organie Impregnating mate- phosphate in solution. When Foscale customers' works. have established rials such as mineral or vegetable nils, R.S. is applled to a rusty surface it beyond doubt that the proper use of lanoline mixtures. waxes and lacquers. converts the rust into tron phosphate R.B. on custy surfaces prior to paint- One of the virtues of Walterisation which combines with the iron phasing will lengthen the life of painı Is that no rinsing is necessary, Man! phute already in the Foscute and
finishes at least threefold, and in treated in the phosphating bath can precipitates out as an insoluble com- be dried without washing because pound, The principle is the same as many cases up to five or six times na there are no harmful chemicals in the that employed in the hot immersion processing solution which need wash- treatment but, as the speed of a Ing off.
chemical reaction depends both on concentration and temperature, it is It is well known that phosphate necessary to allow the Foscote R.S. to cratings, obtained by any process, are continge working for several hours to good surfaces to have under paint. complete its action.
long
Foxtute RS. is manufactured lucally under license from The Walterlantion Co. Ltd.. by Davle, Bung & Company Limited. who are also the concession- alres for Hongkong and South China.
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and
HERAKLITH BUILDING AND INSULATING
INSULATING SLABS
HERAKLITH_Lightweight Building a permanent shuttering in concrete Walls External: Infuung and Slabs and HERACOUSTIC Tiles are constructions.
panelling ta timber, concrete made by the Austro-American Mag-
metal framed structures permanent The standard size is 78 in x 10 3 4 shuttering to concrete. Walls—Parti- nesite Company. They were first used In 1915. and since then the demoulin 1200 x 50 cm), but other lengths tions Internal: Self-supporting solid has su increased that 3 factories. Lay can be supplied to meet market re- partitions. Lining of brickwork, stone. quirements. For use umplustered as concrete to increase thermal insula- ing à total output of 500.000 square
avustical medium, the special tom. feet a day, are now in operation.
HEKACOUSTIC tile is in the market: HERAKLITH for Hongkong Is aup. In sizes of 19 3:4 In, square. 39 1'2 In. x 17 3.4 in. and 79 in. x 19 3 4 12 with straight or beveiled edges, Both products are becoming increasingly popular In the building Industry.
Ceilings: All types of celling and Soffit for plaster finish and thermal insulation Highly efficient for sound absorption when applied with natur÷. al finish texture.
Roofs: Thermal insulation Per- manent shuttering to concrete or ap plied to precast units, Applications over timber, concrete und métul joists and frame constructions.
bied Irom the Austro-American fac- tory at Radenthein. In Austria, which is situated close to the Carinima11 magnesite cement, and it is already widely used in tropical areas. It was
Technical data on the products the advantage of being a resilient shows that the weight is 26 lbs, a cub. material of great strength. thus prae- ft. and the thermal conductivity for tically eliminating the danger of 2 in: thickness is 0,229 B. Lu, hr. per damage during handling. The mag- sq. ft per degree F. Sound absorption nesita cement has the effect of petri- coefficient 13, –50 tu -70 and the Floors: Thetidal and sound insula - : fying the wood fibres indefinitely, noise reduction coeficient is -55 to tlon. Applied to timber, concrète or making the slab highly fire resisting. 20. The sound insulation value for metal joists or direct to solid fluors,
double partition 15 termily and fut prout and giving i 2 in. + 2 in
58 Decibel.
unlimited durability and Excellent thermal and sound Insulation proper- The HERAKLITH
manituld uses
tles. HERAKLITH is most suitable as Include the following applications:
Further particulars, samples and Ilterature may be obtained from tha local agents. Messrs. Horn Trading Cumpany
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