Alumilite’s Vac 25 provides users with an extremely durable and abrasion resistant rigid urethane that has good overall physical properties and low shrink. Vac 25 is the best choice when abrasion resistance is required. The Vac 25 has a mix ratio of 1:1 by weight and needs to be agitated prior to measuring. The material features a 6 minute work time with a demold time that ranges from 2-3 hours depending on the mass of the material being cast. The Vac 25 is a great choice for vacuum or thermo form tooling as well as nests, check fixtures, and applications where high abrasion is required. Vac 25 is not recommended for machining as some of the raw materials that provide high abrasion resistance are very hard on tools and bits which will wear down quickly.


Prior to use, read all Technical Data Sheets/Instructions and Safety Data Sheets linked below.

Price: $24.40
Availability: In Stock
Usually ships In 1-2 Business Days
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    Note: Alumilite products also available in bulk sizes ... 5 gallons, drums, and totes. Call 800-447-9344


    Quantity:
    Produ Vac-Master 25
    Color Natural
    Mix Ratio 1:1 by WEIGHT
    Pot Life 6-8 minutes
    Demold Time (100 gr. Mass) 2-3 hours
    Mixed Viscosity (cps.) 2,000
    Specific Gravity 1.15
    Shore Hardness (ASTM D-2240) 80 D
    Shrinkage (in./in.) .003
    Tensile Strength (ASTM D-638) (psi) 4,000
    Elongation (in./in.) <1%
    Temperature Resistance 250 F
    Flex Modulus (psi)—Tear (pli) n/a
    Approx Net Volume 1.5 gal (20lb Kit)
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