It is extremely stable and can be applied to virtually all building 'materials with excellent bonding.

Its unique chemical composition and physical characteristics enable it to exhibit a large number of properties which in turn make it highly suitable for a wide range of applications.

Pyrok surfacing material has a number of natural channels or interstices. Sound energy will dissipate as heat when entering these channels.

It also has a large number-of enclosed air cells which will react to natural driving frequencies and provide a high coefficient of sound absorption.

Absorption coefficients increase progressively through the frequency range in which most noise problems are encountered.

Noise reduction coefficient (NRC) for reverberent sound using 25mm thick Pyrok sprayed on the surface is found to be 0.55.

In many industrial and commercial premises condensation from ceilings or roof trusses may damage the goods being manufactured or stored. Pyrok, is ideal for use as an anti-condensation lining, and specially suitable for walls and ceilings in kitchens, bath houses and industrial premises such as laundries, dyeworks and breweries where the air is heavily charged with moisture.

Pyrok withstands attack from nitric, phosphoric, hydrochloric and sulphuric acid. Its chemical composition also effectively prevents any growth of algae or fungi. Pyrok also protects against rain water penetration and it is robust enough to withstand abrasion.

Pyrok will not crack or spall after curing even when screwed, sawn, chiselled or nailed.

It is colour-wash with no yellowing effect and cleaning with a steam brush will restore the original appearance.
It is non-toxic and odourless.

The ingredients of Pyrok surfacing material combine to provide a strong measure of protection from fire.

Its strong adhesion to, metal makes it an excellent, simple and inexpensive fire-resisting covering to structural steel members eliminating the need for, the normal 5.0mm of reinforced concrete.

Application is carried out in a matter of hours. Pyrok has fire"ratings from 1/2 hour to 4 hours.

Fire test conforms to BS 476; Part 8 and Part 21-Fire resistance test'& standard spread of flame test conditions and BS 476: Part 4:1976=Non-combustibility tests for materials.

The thickness of Pyrok ranging from 10 mm to 59 mm is determined by the duration of fire protection required (fire.rating), the ratio of perimeter of exposed section to the cross-sectional area of the steel member (Hp/A) and whether profile or box/solid protection is applied.

Considerable economy in energy costs can be achieved in buildings where walls are coated either inside, outside or both with Pyrok surfacing material.

The reason for this excellent insulation is-explained by the countless minute air cells formed in the mix by the use of exfoliated' vermiculite and other ingredients possessing high resistance to heat.

The thermal conductivity (K value) of Pyrok remains constant under the most severe conditions. Its thermal efficiency therefore remains unimpaired when maximum thermal value is required. (See table 4)

Pyrok surfacing material gives excellent protection against corrosion in ferrous metals and has been successfully
used to line steel flues carrying gases heavily laden with sulphurous fumes.

In three years of tests no specimen has shown any signs of corrosion. It is also used for the prevention of corrosion and spalling of rein-forced concrete.

Unicorp Sendirian Berhad
Lot 66, Beribi II Industrial Estate, B.S.B. BE1118 P.O. Box 620, Bandar Seri Begawan BS8671, Brunei Darussalam Tel: 673-245 0450, 245 0500, 245 0998 Fax: 673-245 0999 E-mail: unicorp@brunet.bn or unicorpbrunei@brunet.bn

Copyright © Unicorp Sendirian Berhad
All Rights Reserved 2005