Aluminum Fillers


Freeman offers a wide range of aluminum fillers that are commonly used with epoxies and other tooling resins. Selection of the proper filler for specific applications is largely dependent on the particle size of the filler.

Aluminum fillers are used to reduce exotherm, increase casting thickness, and reduce shrinkage. The size of the filler used depends on the size of the tool and other specific requirements. The sizes, from smallest to largest, are:

Aluminum Sand (Granules) 0.006"-.040" (100-18 mesh)
Aluminum Spheres 0.020"-0.074" (30-10 mesh)
Aluminum Shot 0.125", 0.25", & 0.31" pellets
Aluminum Puffs 0.25" to 0.375" in diameter



SKU Description   UM Thick Width Length Height Board ft. Net Wt. Diameter Grade Grit Plys Radius SPB Ship Note Min. Qty Pcs/Box Pcs/Bundle Winding Ft/Box Handle Len Head Diam Head Len Mfg. # Qty
059015 Aluminum Sand EA 2.5
054497 Aluminum Sand EA 50
059010 Aluminum Spheres EA 2.5
054495 Aluminum Spheres EA 50
054493 Aluminum Puffs EA 50
054491 MF-40 Aluminum Shot EA 50

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Important Information

  • Shipping: Freeman charges standard published UPS/FedEx shipping rates (unless freight is specified). All orders under $25 are subject to a $5 small order fee. International orders are subject to a $250 minimum order.

  • Liquid products are sold by weight, not volume.

  • SPB = Sheets per Box

  • HAZ-G = Hazardous material, cannot ship air, up to $33 surcharge applied for each package shipped ground within the US.

  • HAZ-A = Hazardous material, cannot ship air, no surcharge for ground shipping.

  • HAZ-T = Toxic material, must be sent by freight carrier.

  • FRT = must be sent by freight carrier due to size, weight, or hazardous classification.


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