$5.32 billion is the projected size of the heat shrink kits market by 2036, up from $2.86 billion in 2026, implying a 6.4% annual growth rate over the decade.
Clean energy expansion is the main driver: renewables made up 85.6% of global power additions in 2025, increasing demand for cable terminations, joints and repair components used in new grid connections.
Utilities and medium-voltage applications lead demand in 2026, with utilities holding a 33% end-use share and medium-voltage kits 46%, reflecting repeat repair work and distribution-network upgrades.
Cable jointing kits are expected to take 28% of kit-type demand, underground cable joints 31% of applications, and electrical distributors 39% of sales as buyers favor stocked, packaged solutions for field repairs.
India is forecast to post the fastest country growth at 8.3% through 2036, ahead of China at 7.5%, as grid expansion and renewable interconnections deepen demand across Asia.