Floating Roof Storage Tank Seals | Petroseals Rubber Membranes, Sheetings & Fabrics

Our range of Petroseal rubber membranes, envelops, sheeting and fabrics for floating roof storage tank seal systems have been developed in conjunction with the worlds’ leading floating roof seal designers, installers and contractors.

Made from high-quality raw materials, our products are engineered to withstand the mechanical forces exerted as the floating roof rises and falls as well as provide resistance against the often aggressive hydrocarbon storage media.

Our wide range of Petroseal rubber membranes, envelopes, sheeting and fabrics are used in a variety of primary and secondary seals and play a vital role in reducing emission losses, also enabling the tank to be operated safely. With long and fault free service lives, Petroseals by White Cross Rubber help generate greater revenues for tank owners by keeping their inventory in service for longer.

Our long standing track record in the floating roof storage tank seal market is based on an understanding that project schedules are tight so broken delivery promises and quality issues will not be tolerated. Our flexible approach sees us service customer requirements on a tank by tank basis as well as major contract work. Our floating roof seals are made to order and can meet your specific needs.

PVC-Nitrile Nylon and PVC-Nitrile Glass-Cloth Membranes and Envelopes

A variety of primary and secondary floating roof seal types most commonly utilise PVC-nitrile nylon membranes and envelopes, whether this be a continuous, scissor and foam seal type seal. Typically these employ membranes and envelopes that are 1.6mm thick but this can vary up to 2.4mm thick or above especially for the PVC-nitrile glass-cloth variety. The lengths and widths of the membrane/ envelop are determined by the diameter and rim space of the tank as well as its condition with the membrane/envelope being tailor-made to the details supplied by the customer to ensure optimum fit and no production wastage.

A punching service is also available to punch the holes in the membrane/envelop that is required to fit it to the tank wall and floating roof so it can be delivered to site ready to install.

WCRP Ltd also manufactures membranes and envelopes for floating roof storage tank seals in Viton (FKM) nylon, this high-performance elastomer offers better resistance against the more aggressive storage media.

PVC-Nitrile Nylon Tube Seals, Tube Seal Sheeting and Scuff Bands

One of the most effective seal types is the tube seal as it is product mounted giving excellent vapour retention and, as it is fluid filled, the tube conforms to any distortion in the tank wall. Typically the tube seal is manufactured from 1.6mm PVC-nitrile nylon and can be supplied as flat sheeting for the customer to fabricate or WCRP Ltd can undertake the fabrication on the customer behalf. A full inflation test is conducted prior to release as part of this service. Tube seal sheeting varies in width from c. 850mm to 1170mm (wider possible) with fabricated tubes ranging from 10 to 14 inches in diameter, the length is determined by the tank diameter with products being made to order to ensure optimum efficiency.

A scuff band is the second sheeting component in the tube seal system, typically 4.5mm thick and made from high-quality PVC-nitrile nylon and features a grooved face on one side. The scuff band encapsulates the tube seal with the grooved face against the tank wall to mitigate abrasive forces in operation. Widths range from 695mm to 1250mm although wider and narrower is possible. Again the scuff band is custom made to the length requested by the customer to ensure there is no production wastage.

When required by the nature of the storage media, tube seals, tube seal sheeting and scuff bands can also be manufactured in Viton (FKM) nylon.

A punching service to prepare the scuff band for installation is available.

Flame Retardant Neoprene/Calcium Silicate Glass Cloth ‘Fire Stop’ Fabric to DIN22118

Certain floating roof storage tank seals systems specify a ‘fire stop’ fabric that is a membrane or envelope that has been specially engineered to offer increased protection in the event of a fire. Our fire stop fabrics are manufactured from an advanced flame retardant neoprene compound and calcium silicate glass cloth to ensure that they are suitable for the duress and hazards encountered in service.

These Fire Stop fabrics are usually produced at a gauge of 1.9mm and can be supplied at whatever width and length best suits your needs. They can also be supplied punched ready for onsite installation.

Need Something Different?

All of our Petroseal Rubber membranes, Envelopes, Sheeting and Fabrics are made in the United Kingdom in a quality controlled environment. Our products for floating roof storage tank seals are also on occasion requested in hypalon. Please get in touch to discuss your needs.

Require something different? View Custom Made Rubber Sheetings and Rubber Coated Textile section

Custom Made

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