Application segmentation is a primary driver of the Sealer Additives market, allocating revenue across distinct end‑use domains. The construction segment, encompassing concrete, masonry and floor‑coating sealers, accounts for roughly 45 % of total sales, reflecting the sector’s high‑volume consumption of waterproofing and durability‑enhancing additives. The automotive segment, which includes under‑body coatings, paint‑shop sealers and interior‑trim protection, contributes about 30 % of market value, driven by stringent durability standards and regulatory pressure for corrosion resistance. The packaging segment, covering food‑grade and industrial packaging films, represents approximately 20 % of the market, where additive performance in barrier properties and chemical resistance is critical. A residual other segment—comprising marine, aerospace and specialty applications—holds the remaining 5 %. Growth forecasts indicate construction will maintain a 4.2 % CAGR through 2030, automotive a 3.8 % CAGR, and packaging a 5.1 % CAGR, while niche marine additives expand modestly. This Sealer Additives segmentation by application delineates each sector’s contribution to overall market size and guides strategic R&D allocation.