DOWSIL™ 890-SL Silicone Joint Sealant
A one-part, cold-applied, easy-to-use, self-leveling silicon material that cures to an ultra-low-modulus silicone rubber upon exposure to atmospheric moisture. The cured silicone rubber remains flexible over the entire temperature range expected in pavement applications.
Uses:
- Self-leveling silicone sealant for concrete and concrete to asphalt pavement joints
- New construction, repair or remedial applications in addition
Benefits:
- One-part, cold applied, self-leveling silicone.
- Self-leveling, no tooling required.
- Can be extruded from -20 to 120°F.
- Flows into irregular joint widths and does not require tooling.
- Movement capability 100% extension and 50% compression.
- Ultra-low modulus.
- Weather and UV resistant.
- Fuel resistant-short term exposure. Refer to Dow form number 62-207 for more information.
- Cold applied, ready-to-use as supplied. No heating or special preparation.
- Unprimed adhesion-primer is not required for Portland cement concrete and asphalt which results in labor and material savings.
- Skin over- typically, the sealant will have a skin-over time of one hour or less at standard conditions allowing roadways to quickly be opened to traffic.
Properties
These values are not intended for use in preparing specifications.
Typical Properties
- Adhesion to Yes No Asphalt, Concrete, Masonry
- Appearance Yes No Opaque
- Application Temperature Range Yes No -29 to 49 °C
- Chemistry Yes No Neutral
- Color Yes No Dark Grey
- Cure System Yes No 1-Part Cure
- Durometer - Shore 00 Yes No 41 Shore 00
- Elongation Yes No > 1400 %
- Flow Yes No Flowable
- Full Adhesion Time Yes No 14 to 21 Days
- Modulus @ 150% Elongation, maximum Yes No 9 psi
- Movement Yes No High
- Movement Capability Yes No -50 to 100 %
- Number of Parts Yes No One
- Primerless Adhesion Yes No Primerless
- Resistance Type Yes No Fuel Resistance, Jet Fuel Resistance, Ozone Resistance, Thermal Resistance, UV Resistance, Water Resistance
- Room Temperature Cure - Days Yes No 14 Days
- Shelf Life Yes No 360 Days
- Solids Content Yes No 96 %
- Specific Gravity @ 25°C Yes No 1.26 to 1.34
- Substrate Yes No Porous
- Tack-Free Time-50% RH Yes No < 300 Minutes
- Water Resistant Yes No true
- Where Used Yes No Job Site
No Safety Data Sheets are available online for this material Please Contact Dow for additional information.
No Safety Data Sheets are available online for this material
Please Contact Dow for additional information.
No Food Contact Letters are available online for this material Please Contact Dow for additional information.
No Food Contact Letters are available online for this material
Please Contact Dow for additional information.
No sales specification could be found for this material in selected language
The following Rules apply:
All products must have the same delivery date
All products must be in the same product family
All products must be purchased on the same order
All products must be shipped from the same plant
All products must have the same delivery date
All products must be in the same product family
All products must be purchased on the same order
All products must be shipped from the same plant
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