The Low Modulus Polyurethane Sealants segmentation by application is dominated by the construction sector, which accounts for roughly 45 % of total revenue. Within construction, sealants are employed for glazing systems, expansion‑joint treatment, and façade weather‑proofing, where the low modulus delivers the required flexibility and long‑term adhesion. The automotive segment contributes about 30 % and is driven by windshield bonding, interior trim sealing, and acoustic dampening, where lightweight, low‑modulus formulations reduce vibration transmission. Aerospace uses these sealants for fuel‑tank lining, composite panel bonding, and cabin pressurization seals, representing 15 % of the market; the critical factor here is the material’s ability to accommodate thermal cycling without cracking. Industrial machinery, comprising roughly 10 % of sales, applies the sealants to equipment housings, vibration isolators, and pipe‑joining applications, where durability under dynamic loads is essential. Collectively, these applications shape the overall market size by aligning product performance with sector‑specific stress and environmental requirements.