APPLICATION:Apply with a soft brush (avoid excessive brushing), roller or airless spray. Allow Kool Seal® RV Rubber Roof Primer to dry 24 hours prior to applying any Kool Seal® Elastomeric topcoat. This product has excellent suspension and requiresminimal stirring. DO NOT THIN.
Airless Spray:• Pressure: 3,300 psi• Spray tip: Reversible, self-cleaning tipwithout diffuser pin. Size .031" with a fanangle of 60° (ex. 631).• Hose Size: At 300’ total hose length,use 250’ of ¾”- ½”10’ swivel whip end 3/8" hose.• General: The longer the hose, thesmaller the tip orifice size.
Brush/Roll:• Soft brushes or a ¾” nap roller may beused. May require multiple coats toachieve proper coverage.
Once the surface has been properly prepared coat the entire roof with Kool Seal® RV Rubber Roof Primer. Do not apply the primer when the temperature is below 50° F or if the temperature is expected to drop below 50° F before the coating has completely dried.
NOTE: In areas where dew accumulates in the early evening it is best to stop coating by3 P.M. to prevent wash off which will occur if dew, fog, or rain arrive before the coating dries. Allow 4 - 6 hours for coating to dry prior to being subjected to rain,heavy dew or temperatures below 50° F.