Sikalastic®-500 Flash

moisture cured Silicone

12 months

Keep containers closed and in a dry, cool place away from excessive heat, sparks, open flame, and moisture. Store material at 40°F - 95°F. 

33.8 g/l
 

41 °F (5 °C) min. / 95 °F (35 °C) max.

80 % R.H. max.

Not for use on surfaces with condensation.
The substrate and uncured coating must be ≥ 5 °F (3 °C) above dew point.

41 °F (5 °C) min. / 140°F (60°C) max.

≤ 4 % moisture content Test method: Sika®-Tramex meter
No rising moisture according to ASTM (Polyethylene-sheet).

4 gal./100 ft²

1. Remove all unnecessary and non-functional equipment and debris from the roof.
2. Remove dirt, and foreign material detrimental to adhesion or application of fluid-applied roofing by thoroughly cleaning all roof surfaces with a pressure wash (2,000–2500 psi, 13.79–17.24 MPa). Surfaces contaminated with oil, grease, animal fats, etc. must be removed using tri-sodium phosphate and water, or other solutions as required by job conditions and as permitted by local, state, and federal regulations. Remove all cleaning solutions with plenty of fresh water and allow to dry
3. Membranes with seam and flashing failure must be repaired using traditional and professional corrective measures and then detailed.
4. Seal to watertight condition around projections, machine legs, sign posts, guide wire straps, inside and outside corners, cant strips, gutters, parapet walls, caps, and seal watertight all screws, seams, skylights, joints, pipes, voids, protrusions and any areas where water could enter through the roof.
5. Clean and Seal all areas around drains to watertight condition.
6. Allow roof and other prepared surfaces to dry completely before proceeding with field priming and/or coating application. Note: Thickness values of cured film are averages and can vary due to finish of surface. Always check the weather prior to application. Depending on the ambient, and substrate temperatuers, relative humidity, and dew point take extra time and caution when applying the system within 2 to 6 hours of precipitation and/or when raw or freezing temperatures are experienced or anticipated. Do not apply over wet insulation or related materials.

Before application, mix Sikalastic® 500 Flash using a mechanical mixer at a slow speed. Mix thoroughly until a homogeneous mixture and color are atttained. Do not dilute under any circumstance.
 

• Prior to coating any surface, be sure the coating will adhere by performing an adhesion test (ASTM D-903)
• Coating may be applied by brush, spatula or trowel
• Do not apply when temperatures are below 41 °F (5 °C) or when precipitation is in the forecast within 48 hours, to avoid pin holes and blistering
• Sikalastic® -500 Flash should not be applied at a rate thicker than 250 wet mils (6.35 mm) in one application