Company Profile

Lining
One of the first problems to manifest itself in the chemical industry was the corrosion of the concrete structures in chemical plants. The use of Trinidad Chemical Resistant Lining is widespread and has many advantages. These are classified under three headings:

1. Heavy Industrial Lining
2. Acid and Alkali - Resistant Lining
3. Spark Proof or Inert Lining

Trinidad floors are joint less, odourless, dustless and resilient. They are ideal for use inside or outside and can take very heavy traffic. They are not nearly so noisy as concrete and are not liable to crack or crumble with heavy wear.

Because Trinidad is totally impervious to water it makes ideal flooring for cold rooms, food processing, dairy produce premises and others, where the floor is continually wet.

ACID AND ALKALI RESISTANT LINING (TCRL)
Trinidad can be made acid and alkali resistant, by the use of certain aggregates and fillers in its manufacture. This type of asphalt is known as Trinidad Chemical Resistant Lining (TCRL) and floors of this material are commonly used in breweries, dairies, wineries and chemical plants.

SPARKPROOF LINING
Special grades of gritless and or lead and lime free floors can be manufactured and laid for use in buildings where explosives and volatile gases are handled, such floors reduce the risk of sparking to an absolute minimum and have a high electrical resistance value.

GENERAL NOTES ON TRINIDAD LINING
Specifications for TCRL vary considerably with the purpose for which the floor is required; some of the factors which have an influence on the specification are the expected temperature of the room in which the floor is to be installed. In wet processes the degree of non slip required should be decided. The expected chemical spillage and cleaning materials used in the plant must be taken into account and the mix designed accordingly.

• RESURFACING OLD FLOORS
  A particular advantage of Trinidad Lining is that it can be laid upon old and worn floors, over tiles and contaminated concrete. The floor is laid over a bond breaker of thick paper or fibreglass and is therefore independent of the subbase floor, this allows for a fair amount of movement of the building. It is therefore not reliant on expansion joints that are the chief cause of weakness in the containment of liquors and chemicals.


• THICKNESS
  The total thickness of a Trinidad Lining varies with conditions of traffic, temperature etc. The normal range is from 20mm in a cold room to 50mm in heavy industrial areas. Trinidad paving is sometimes laid in 2 coats to a thickness of 50mm and then pre-coated chippings are rolled into the surface in a case hardening effect, for the flushing of heavy road tankers.


• REPAIRABILITY
  In the advent of some portion of the floor being modified by the removal of or addition to a structure, TCRL is easily “made good”. The existing material is welded monolithically and dressed into the new material. TCRL will handle the majority of inorganic liquors likely to be spilled onto floors. This statement must, however, be provisional upon the liquors not being excessively hot and the floors being frequently washed down. If liquors are discharged in a stream upon the floor, stainless steel or acid bricks should be employed at the point of impingement in order to dissipate heat and obviate undue corrosion. The big benefit of TCRL is that it can be repaired and ready for use within hours.


• APPLICATION
  The material is brought to site in block form and heated in “cookers” in 2 - 4 ton lots. The bond breaker underlay is laid and the hot material is hand floated to the required thickness and allowed to cool. Within hours the surface may be trafficked, and before that, any leakage from the overhead plant will have little or no effect on the material. These floors are mostly laid whilst the overhead plant is still in operation, obviating any shut down. Skirtings and upstands are laid in 2 or more coats and welded at the junction with an angle fillet.

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