APE May 2024 | Page 28

Additives like polymers ensure that sealcoat remains firmly bonded to the pavement , preventing premature peeling and flaking .
FEATURE
Additives in sealcoating formulations serve several essential functions :
1 . Improved Adhesion : Additives like polymers enhance the adhesion of the sealant to the asphalt surface . This ensures the sealcoat remains firmly bonded to the pavement , preventing premature peeling and flaking .

Additives like polymers ensure that sealcoat remains firmly bonded to the pavement , preventing premature peeling and flaking .

2 . Flexibility and Durability : Flexibility is crucial for sealcoating materials to withstand the constant stress and movement caused by vehicular traffic and temperature fluctuations . Additives such as latex or rubberized compounds impart flexibility to the sealant , making it more resilient against cracking and crumbling over time .
3 . Resistance to UV Damage : Exposure to ultraviolet ( UV ) radiation from the sun can cause asphalt surfaces to deteriorate rapidly . UV stabilizers present in sealcoating additives help protect the pavement from the harmful effects of sunlight , preventing premature aging and surface degradation .
4 . Waterproofing Properties : Sealcoating serves as a protective barrier against moisture penetration , which is one of the leading causes of asphalt deterioration . Additives like acrylics or silanes enhance the waterproofing capabilities of sealants , forming a tight seal that repels water and prevents it from seeping into the pavement layers .
5 . Improved Dry & Cure Time : Certain additives can help to mitigate environmental factors that may impede drying , such as humidity or temperature fluctuations , ensuring consistent and reliable performance even under challenging conditions . These optimize cure and dry time , enabling quicker turnaround and minimizing downtime , ultimately improving the efficiency and effectiveness of the sealing process
6 . Enhanced Appearance : Certain additives , such as pigments and fillers such as sand , can improve the aesthetic appeal of sealcoating by providing color consistency and filling in minor surface imperfections , resulting in a smooth and uniform finish .
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[ 15 ] May 2024