Which type of sealant is used for larger seams wider than 1/4 inch?

Heavy-bodied sealant is the correct choice for larger seams that are wider than 1/4 inch because it is specifically formulated to fill wide gaps and provide a strong, durable bond. This type of sealant has a thicker consistency, which allows it to effectively bridge larger openings without sagging or losing its shape. Its heavy-bodied nature ensures that it can withstand environmental stresses such as temperature changes and vibrations, making it ideal for automotive applications where such conditions are common.

In contrast, liquid seam sealers and low-viscosity sealants are better suited for smaller seams or applications that require a smoother, more fluid application. They may not provide the same level of coverage or structural integrity in larger gaps. Flexible caulk, while versatile, does not offer the robust performance needed for broader seams and may not adhere as effectively under the demands of automotive environments. Therefore, for seams wider than 1/4 inch, heavy-bodied sealant is the most appropriate choice due to its ability to accommodate the specific requirements of larger spaces.