Sealant DOWSIL
HM-2520 Old name Dow Corning HM-2520
Old name Dow Corning HM-2520
Description
DOWSIL 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.
Operating temperatures
-45°C +150°C
Pre-packing
50g304ml18kg205kg
- Applications
- Advantages
- Features
Applications
FEATURESInstant 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
APPLICATIONS
DOWSIL 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.
Advantages
- Neutral curing system
| Стандарт | Показатель | Ед. изм. | Значение |
|---|---|---|---|
| — | Цвет | Полупрозрачный | |
| — | Диапазон рабочих температур | °С | от -45 до +150 |
| CTM 0243 | Время до образования первичной пленки | мин | 15 |
| ASTM D 412 | Предел прочности на разрыв | МПа | 4,83 |
| ASTM D 412 | Относительное удлинение при разрыве | % | 1000 |
| ASTM C 661 | Твердость по Шору А | 33 | |
| CTM 0044 | Удельный вес | г/мл | 1,12 |
| — | Модуль упругости | МПа | 0,48 |
| — | Срок годности | дней | 360 |