Prior to applying GuardTop® Sealcoat the surface must be prepped for the product. Proper preparation ensures a long lasting, quality job that will ensure customer satisfaction. The following simple guidelines are to help insure a quality job.
1. Clean and Fill All Cracks
For asphalt cracks that are 1/8 inch or larger, clean by brushing and treat with weed killer. Next apply Crack Filler by GuardTop®. The crack should be filled to match the surface of the rest of the pavement. For larger cracks, Crack Filler by GuardTop® may have to be applied several times. For large cracks that have broken asphalt and for areas that have broken asphalt, we recommend that the loose asphalt be removed and replaced with new asphalt. Extreme low spots should also be filled with new asphalt. It is recommended that new asphalt overlay should cure for a period of 30 days, and removed and replaced asphalt with depths of 4″ to 6″ be allowed to cure for 180 days minimum, before sealing with GuardTop® Sealcoat. Click here for more information on Crack Filler by GuardTop®.
2. Prepare Oil and Grease Residue
Sealcoat will not adhere to surfaces with excessive oil and grease. For a quality job, clean all oil and grease deposits with a degreasing solution using a stiff bristle broom or a power operated broom. Areas completely saturated are recommended to be removed and replaced with new asphalt. Then apply Oil Spot Primer by GuardTop® to all oil and grease stained surfaces. Simply brush in Oil Spot Primer by GuardTop® to the surface insuring full coverage over the stain. Click here for more information on Oil Spot Primer by GuardTop®.
3. Final Surface Cleaning
After all pavement repairs have been completed, the surface should be clean and free of all dirt, debris and existing pavement loose graveled particles. Please note that dirt and loose debris will restrict the adherence of the sealcoat. To clean the surface use a power broom, power blower or flush the surface with high pressure water. This process will ensure a long lasting quality job.
For best GuardTop® Sealcoat results it is recommended that the surface be sprayed with a mist of water in an amount that will leave the surface damp and free of standing water or puddles. The misting procedure is critical when the ambient temperature is hot and on bright sunny days or when the pavement is excessively aged and porous. In these instances, the pavement will draw the water out of the sealcoat at a more rapid rate than recommended unless the surface is pre-watered.
5. Priming Excessively Weathered Surfaces
For excessively weathered surfaces a primer or fog seal should be applied to the surface. The primer should consist of a 50/50 mixture of SS1-H and water. Apply the mixture to the surface, let dry and then apply GuardTop® Sealcoat to the surface.