PHENOSET MICROSPHERESPhenoset Microspheres are small individual hollow spheres of phenolic resin.Lightweight, chemically inert and mechanically strong, they are primarily used as ahollow filler.

Phenoset microspheres combine the benefits of low density and high compressivestrength. Due to its spherical shape, they provide greater strength as opposed todiverse and unstable shapes. The hollow center of the Phenoset microspheres givethem the predetermined lightweight which allows them to be used as density and weightcontrol agents.

GENERAL APPLICATION AREAS

Syntactic Foams,

Phenoset microspheres can be mixedwith phenolic, polyester, polyurethaneand epoxy to form syntactic foam thatfeature reduced weight, increasedstiffness and improved crack resistance

Applications include• Automatic tooling compound• Structural Parts• Ablative heat shields (astrospace re-

entry vehicles• Modelling boards• Synthetic wood• Media for sculpturing

Sensitized Dynamite,

Used specifically in gelatin dynamitesfor water resistant, pressurizedapplication.Phenoset• helps to ensure a high detonation of

velocity (VOD)• acts as a density control filler to meet

precise lower density ‘hot spots’ toyield controlled, highly-reactivedetonation.

Extenders,

Phenoset microspheres used asextenders can save up to as much as 40percent resin in adhesives

Abrasive/Grinding Wheels,

Phenoset microspheres are used• To control porosity in the grinding

wheels• To aid in stabilizing the dimension of

the wheel during process• As a spacer relative to the abrasive

particles

Thermosetting putty,

Used in potting and fairing compound inmarine andautomotive applications for• Weight reduction• Faster, easier sanding• Better finishing

PHENOSET MICROSPHERES

To meet the requirements of their many applications, Asia Pacific Microspheres SdnBhd (APM) produces two standard grades of microspheres:

Phenoset BJO-0840 and Phenoset BJO 0930

These microspheres are reddish-brown in color and are primarily used as a hollow filler.The different density and maximum working pressure allows the formulator to choosethe minimum density product that will survive formulation, pumping and use.

TYPICAL PROPERTIESPROPERTY PHENOSET BJO-0840 PHENOSET BJO-0930Average HydrostaticCompressive Strength psi 1000 500Liquid Density (LiquidDisplacement) g/cc 0.25 to 0.35

0.21 to 0.25

Average Bulk Density Glcclb/ft3

0.10 to 0.156.24 to 9.6

0.104 max6.5 max

Moisture Content wt % <4 <4Floatation in Toluene(Dupanol solution) % --- > 90Average Particle Size microns 70 90

PACKAGING

Polyethylene-lined HDPE drums

Phenoset BJO 0840 : 40 lbs / 18.2 kgPhenoset BJO 0930 : 30 lbs / 13.6 kg

STORAGE AND HANDLING

• Store Phenoset microspheres in a cool, well-ventilated area• Keep away from sunlight

For further information on storage and handling, please refer to the Material Safety DataSheets.

Experimental radiation studies,

Formulated into epoxy compounds toproduce simulated tissues.As tissue substitutes for experimentalradiation studies.

Structural Parts,

Used usually with reinforced plastic skininsubmarines and missiles.For the aerospace applications, as• Abradable seals• Potting compounds

Casting Applications,

Used with plastic binders in• low-pressure molding• low-pressure laminating

Strength properties of cured castingsare comparable to those of filled epoxiesthree times the weight

BENEFITS

• Weight reduction• Superior machinability with clear precise edge cuts• Superior compatability with epoxy, polyurethane - no coupling agents required• Improved surface property of resultant syntactic foam• Increased strength to density ratio of foams• Viscosity reduction and improved flow unlike irregular-shaped fillers• Maintains sharpness of abrasive wheels

PRODUCT SAFETY

When considering the use of APM products in a particular application, you shouldreview our latest Material Safely Data Sheets and ensure that the use you intend can beaccomplished safely. For Material Safety Data Sheets and other product safetyinformation, contact Asia Pacific Microspheres Sales / Distributor’s Office nearest toyou.

FUIRTHER INFORMATION

For information on additional literature, products and service, telephone 603 - 559 1801.

IMIPORTANT This information is not to be taken as a warranty or representation for which we assume legalresponsibility nor as permission or recommendation to practise any patented invention without a license. It is offeredsolely for your consideration, investigation and verification. Since your specific use, application and conditions of useare beyond the control of Asia Pacific Microspheres Sdn Bhd, you must determine the suitability of the products andthe suggestions mentioned herein for your specific application.