Review on POR-15 Patch - 4 oz White Filler & Seam Sealer for Steel, 🔧 Wood, and Plastics - Ultimate Adhesive to Strengthen Weakened Metal and Patch Holes and Cracks by Michael Rosario

A little pricey but a great product. I've used it to seal seams on a car and I've used it to join wooden railings to make the structure more rigid. The main thing is that your surfaces are clean and dry before application. This product does not level itself so if it looks clumpy it is drying out. Depending on the thickness, I've experienced drying times from 24 hours to 96 hours. This is a great product that stops leaks and actually strengthens the material. I only gave one star for the price.