Aerosol Dust and Dirt Hardener (15 oz Can) adhesive backed   A permanent black fingerprint

  A permanent black fingerprint impression will develop and dry immediately on the tab

how a shooting most likely occurred

• Tamper-evident seal maintains sample security

tear- and puncture-resistant

Aerosol Dust and Dirt Hardener (15 oz Can) adhesive backed   A permanent black fingerprintThis efficient method for preparing footprints and tire tracks found in loose or sandy soil is newly packaged in aerosol form. The 638CA features a quick drying, clear acrylic formula that adds superior strength to impressionslessening the chance of detail damage due to the weight of the casting material. Use it with plaster of paris, HARD CORE, or Shake N Cast materials. One 15 ounce can of 638CA Dust and Dirt Hardener is enough to make up to 30 full