I work in the autobody industry. This is a seam sealer tip that replicates factory seam sealer bead texture in the structural portions of a car. : r/functionalprint
Applying brushable seam sealer to your Classic car project - YouTube
Tips & Tricks for Applying Different Types of Seam Sealers to Your Car - Eastwood - YouTube
Best Automotive Seam Sealer (Review & Buying Guide) in 2023
Best way to hide make seam sealer undetectable under paint? : r/Autobody
Car Body Seam Sealing
SEM Products Unveils Seam Sealer Solution - BodyShop Business