EB 789 Weather Proof
EB 789 Weather Proof
Description:
ESSRBOND 789 is a one-part, general purpose sealant based on Silicone polymer, suitable for sealing joints subjected to movement of up to +/-50 % of the original width. It has good adhesion to wide variety of substrate such as plywood, Concrete, GI, MS, aluminium, FRP etc.
Advantages
- No Shrinkage.
- Paintable with common water-based paints
- Adhesion to most common building materials
- Single component with fast rate of cure
- Easy to apply
- Can be applied to damp substrates
- Primer less for most applications
- UV resistant and colour stable
- Excellent Resistance to weathering
- Performs as an acoustic sealant
- Available in a range of colours
- Environmentally friendly
- Low Dirt pickup
| TECHNICAL DATA | |
| Curing System | Moisture Curing |
| Colour | White / Black / Grey |
| Density Approx. | 1.3 g/mL |
| Skin over time | 20 – 30 minutes |
| Curing time @ 23°C/ 50% RH | 2 – 3 mm / 24 hr. |
| Shore A Hardness (ASTM C661) | 35 – 45 |
| VOC content | < 2% |
| Tensile strength | 1.5 Mpa Approx. |
| Elongation at break (ASTM D412) | : 400% Approx. |
| Application Temperature | 5°C to 40°C |
| Service Temperature | 5°C to 40°C |
| Maximum joint width | 25 |
DOWNLOAD TECHNICAL DATA SHEET
APPLICATIONS
Cut tip off cartridge / sausage with a sharp knife. Cut nozzle at 45° angle to desire bead-width and apply to substrate with cartridge gun. Firmly extrude the sealant into slot ensuring complete contact with joint faces. Tooling time is 15 minutes, tack free time is 20 – 30 minutes. The sealant should be tooled shortly after application before skin forms to ensure good contact with joint substrates. Uncured sealant can be cleaned up with mineral spirits. Use approved backing material for joints over 10mm deep.
