FOR IMMEDIATE RELEASE

April 25, 2005.

Porvair Sciences Ltd., specialists in microplate technologies, have introduced a new range of adhesive and thermal sealing films and foils.

Optimised Sample Sealing ..

Porvair Sciences Ltd., specialists in microplate technologies, have introduced a new range of adhesive and thermal sealing films and foils.

The new range of sealing films and foils offer a convenient and effective method for sealing 24-, 48-, 96-, 384- and 1536-well microplates. Sealing a microplate minimises evaporation and provides protection for samples during assay, storage, and shipment.

Using only the highest quality film materials and consistently applied adhesive ensures Porvair adhesive sealing films maintain sample integrity and minimise sample loss. The comprehensive new range includes optically clear polyester for PCR work, aluminium for sample storage, breathable Rayon™ for cell culture applications and an 'easy pierce' polyethylene film for general assays. All Porvair adhesive sealing films have two end tabs for easy, accurate and secure positioning on the microplate. To prevent interference with automation systems the sealing film end tabs are perforated to enable accurate and easy removal.

Fully compatible with the Porvair Thermobond® heat sealer, the new range of thermal seals enable Deep Well Plates, PCR Plates, Microtitre Plates and Polystyrene Tubes to be sealed with a specially prepared pierceable film or foil. The new range of 6 thermal sealing products includes a clear film for fluorometric and colorimetric assays, an aluminium foil for sample storage and a polypropylene/Al foil for PCR work. Thermal sealing using the Thermobond is well suited for higher throughput laboratories and is the choice for applications requiring longer term, high integrity sample sealing.

For further information on the new sealing films and foils please contact Porvair Sciences on telephone +44-1932-240255, email int.sales@porvair-sciences.com or visit www.porvair-sciences.com

CONTACTS:

Porvair Sciences Ltd. Unit 6, Shepperton Business Park Govett Avenue Shepperton Middlesex TW17 8BA UK tel. +44-1932-240255 email: int.sales@porvair.com www.porvair-sciences.com