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Arloy Flow-Stop Mask

Arloy Flow-Stop Mask is a heat-resistant marking applicator for soldering and repairs. The material prevents the flow of molten metal into threads, holes, cast surfaces. It can be used with precious and non-precious alloys.


  1. Shake well before and during use.
  2. To start flow, press pen tip down several times until saturated.
  3. To replenish, press down once. 
  4. Keep pen capped when not in use.
REMOVAL: Arloy Flow-Stop Mask residue remaining after the thermal process is not harmful to surfaces and may be removed by any of several methods: 
  1. Vapor blasting;
  2. Wire brushing;
  3. Grit blasting;
  4. Polishing;
  5. Pickling. Keep in mind that simply wiping off a misapplication will not entirely prevent its effectiveness.


  1. Flammable: keep away from fire and flame.
  2. Store in a cool place.
  3. Keep away from children. Do not take internally.
  4. Keep pen capped when not in use.
  5. Read Material Safety Data Sheet before use.