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Product Data Sheet
EN 10300 Type F
Bituseal®Outer Wrap is semi-woven glass fiber reinforced fabric impregnated with a polymer-modified bitumen. It is impregnated in order to ensure optimum protection of the fibers. The impregnation is performed so that “bleed-through” is controlled during the pipe coating process.
Bituseal®Outer Wrap is offered in a Standard and Heavy Duty version in order to fulfill customer’s exact requirements. The product is manufactured to an exact degree of porosity which promotes effective adhesion between the outer-Wrap and enamel. Bituseal®Outer Wrap comprises a laminate of strong glass fabric bonded to a light glass/polyester tissue. The yarn fabric comprises both longitudinally and transverse reinforcing threads. This type of Outer Wrap is suitable for
most soil conditions.
Bituseal®Outer Wrap is supplied in customized widths and lengths. After production the product is placed on pallets and packed in shrink film, thus allowing easy transport of the material.
Bituseal®Enamel is applied to steel pipes, previously primed with Bituseal®Primer, at 190-230°C using computer controlled extrusion technology, which ensures optimum coating quality. Bituseal®Outer Wrap is applied over the still hot and liquid Bituseal® Enamel. Application must take place so that folds and air pockets are avoided and adhesion to the underlying enamel is ensured.
Bituseal®Outer Wrap is stored upright on a dry surface. The product should not be exposed to direct sunlight and maximum storage height is 2.50 m.
Bituseal®Outer Wrap meets or exceeds all international specifications for bitumen-based pipeline coating and meets the requirements for outer-Wraps EN 10300, type F. Quality Control All raw materials for Bituseal®Outer Wrap is tested and approved in the laboratory of Varziran. The quality of the finished outer-Wrap is controlled in accordance with related standard or customer’s specific requirements and a test certificate is provided for each batch produced.
Bituseal®Outer Wrap is suitable for pipelines operating at temperatures in the range -20°C to 90°C and provides a highly protective coating and excellent in-service performance. Bituseal®Outer Wrap is environmentally safe and contains no harmful components.
|Properties||Unit||Requirement||Method of test|
|Mass per area of base glass/carrier||gr /m2||Min 110||EN 10300, Annex M|
|Type of base glass/carrier||—||Composite glass/Polyester fibre||—|
|Mass per area||gr /m2||Min 450||EN 10300, Annex M|
|Thickness||mm||Min 0.6||EN 1849-1|
– Transverse N
|EN 12311-1 modified as in Annex N of EN 10300|