# PRODUCT INFORMATION
TECHNICAL DATASHEET

15/10/2002-3



### INTRODUCTION Hyperlast 2851061 is a polyether based compound that reacts at room temperature with Hyperlast 5000 Isocyanate to produce a polyurethane elastomer suitable for use as a sealant in the manufacture of absolute air filters. Hyperlast Limited Station Road, Birch Vale HIGH PEAK, SK22 1BR United Kingdom Tel 01663 746518 Fax 01663 746605 www.hyperlast.com 

## HYPERLAST 2851061

COMPONENT PROPERTIES Polyol Component :- Product Reference 2851061 Appearance Cream Liquid at 25 °C Viscosity 3500 - 4500 cps at 25 °C Specific Gravity 1.48 - 1.52 at 25 °C Isocyanate Component :- Product Code 2875000 Appearance Brown Liquid at 25 °C Viscosity 180 - 240 cps at 25 °C Specific Gravity 1.23 - 1.25 at 25 °C Mixed System :- Mixing Ratio 10 :1 by weight (Polyol : Isocyanate) Gel Time 8' 0" - 10' 0" (100 gms at 25 °C)



### CURED SYSTEM

- TYPICAL PROPERTIES Property Test Method Value Unit Shore Hardness BS 2782 Meth 365B 50 °A Tensile Strength BS 903 Pt A2 1.8 MPa Elongation at Break BS 903 Pt A2 180 % Angle Tear Strength BS 903 Pt A3 5 N/mm

### PROCESSING DETAILS The following information is given as a guide to processing this product. It is recommended optimum conditions for a specific application are determined ex perimentally. Hyperlast Limited Technical Service Department can offer more detailed advice. Recommended Processing Temperatures :- Polyol Component Isocyanate Component 20 - 30 °C 20 - 30 °C Recommended Cure Cycle :- Cures at ambient temperature. Additional Processing Details :- When casting into metal containers the use of a primer may be necessary. 

### STORAGE AND HANDLING Polyol Component :- Store in tightly sealed containers ata temperature of 0 - 30 °C. Raise to the processing temperature and mix well before use. Avoid contact with moisture. Shelf Life - 6 months. 

### Isocyanate Component :- Store in tightly sealed containers at a temperature of 5 - 30 °C. Avoid contact with moisture. Shelf Life - 12 months. Storage below the recommended minimum temperature may result in freezing of the Isocyanate. If the Isocyanate does not fully melt out when raised to t he processing temperature it may be necessary to re-melt at a temperature of 60 - 70 °C following the procedures laid down in the Hyperlast Limited information sheet 'ISOCYANATES - HAZARDS AND SAFE HANDLING PROCEDURES'. More detailed information on the Storage and hand ling of Polyurethane Com ponents can be obtained by contacting Hyperlast Limited Technical Service Department.



### MATERIAL SAFETY INFORMATION Before using this product consult Hyperlast Limited Safety Data Sheets.



### PACKAGING 2851061 is available in :- 25 Kgs, 250 Kgs 2875000 is available in :- 25 Kgs, 250 Kgs

Dow Hyperlast Limited have a policy of continual improvement so please ensure you are in possession of the latest issue of the Product Information sheet for the product (s) you are planning to use. A lthough every effort has been made to ensure the accuracy of the information contained herein , Dow Hyperlast Limited gives no w arranty that the information is accurate and shall in no circumstances be liable to any person if it is not . The customer must satisfy himself as to the suitability of any of Dow Hyperlast Limited 's products for his requirements.

' A utothane', 'Diolplex', 'Diorez', 'Diprane', 'Durelast', ' Hyperlast' ‘Hyperkote, Rotekote, Monothant and 'Solidair' are all trad e marks, the property of Dow Hyperlast Limited.