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lubricants and sealants

Materials: Dow Corning
Sealant Dow Corning HM-2520


Dow Corning HM-2520 Assembly Sealant is a 100 percent silicone, neutral-cure sealant formulated to have immediate adhesion which offers assembly improvements and uses in many production applications. Products made with this can be immediately handled. As a viscoelastic material, when cured and then exposed to high temperatures, this product will soften but recovers to its typical properties when cooled down.


Material Safety Data Sheet - Dow Corning HM-2520 Technical Data Sheet - Dow Corning HM-2520

Operating temperatures

-45°C +150°C


50g 304ml 18kg 205kg
  • Applications
  • Advantages
  • Features



Instant green strength
100% silicone
Low VOC (VOC exempt in CA)
Safe to handle – nonhazardous composition and by-products
Neutral cure
Adheres to most common substrates
Open time up to 15 minutes
Pot life up to 24 hours
Translucent Clear
Service temperatures from -50 to 300°F (-45 to 150°C)
Can be used with standard hot melt dispensing equipment
High tensile strength


Dow Corning HM-2520 Assembly Sealant is designed for use as an assembly sealant. This product utilizes hot melt technology to dispense the material which utilizes silicone technology to achieve instant green strength when dispensed and cures to strong moisture cured silicone sealant.


  • Neutral curing system
Стандарт Показатель Ед. изм. Значение
°СДиапазон рабочих температурот -45 до +150
CTM 0243минВремя до образования первичной пленки15
ASTM D 412МПаПредел прочности на разрыв4,83
ASTM D 412%Относительное удлинение при разрыве1000
ASTM C 661Твердость по Шору А33
CTM 0044г/млУдельный вес1,12
МПаМодуль упругости0,48
днейСрок годности360