DOWSIL™ 888 Silicone Joint Sealant 20oz Sausage
$17.14
A single-component, non-sag silicone material that transforms into a low-modulus silicone rubber upon exposure to atmospheric moisture. Suitable for application across a broad temperature range.
Applications:
- Suitable for new construction, repair, or remedial applications.
Benefits:
- Can be extruded within a wide temperature range from -20 to 120°F.
- Effective for use in joints with varying widths.
- Offers a movement capability of 100% extension and 50% compression.
- Features a low modulus for enhanced flexibility.
- Resistant to weather and UV radiation.
- Provides short-term resistance to fuel exposure (refer to Dow form number 62-207 for detailed information).
- One-component formulation, cold applied, and ready-to-use straight from the container; can be dispensed manually or with an air-powered pump directly into the joint.
- Exhibits unprimed adhesion, eliminating the need for a primer when bonding to Portland cement concrete. For optimal adhesion, ensure the surface is clean, dry, and free from frost.
- Typically cures within one hour or less under standard conditions, forming a skin-over.
| Typical Properties | |
|---|---|
| Adhesion to | Concrete, Masonry |
| Appearance | Opaque |
| Chemistry | Neutral |
| Color | Grey |
| Durometer - Shore A | 15 Shore A |
| Elongation | > 1000 % |
| Modulus @ 150% Elongation, maximum | 28 psi |
| Movement | Medium |
| Shelf Life | 360 Days |
| Specific Gravity @ 25°C | 1.48 |
| Substrate | Porous |
| Application Benefits | |
|---|---|
| Application Temperature Range | -29 to 49 °C |
| Primerless Adhesion | Primerless |
| Resistance Type | Fuel Resistance, Jet Fuel Resistance, Ozone Resistance, Thermal Resistance, UV Resistance, Water Resistance |
| Water Resistant | true |
| Processing-Formulating Benefits | |
|---|---|
| Cure System | 1-Part Cure |
| Full Adhesion Time | 14 to 21 Days |
| Number of Parts | One |
| Room Temperature Cure - Days | 7 to 14 Days |
| Tack-Free Time-50% RH | 60 Minutes |
| Where Used | Job Site |
Additional information
| Weight | 2.5 lbs |
|---|---|
| Dimensions | 1 × 1 × 1 in |
| Color | Grey |
