AP Products 017-90892 Sikaflex-221, Aluminum Gray

Customers find the bonding adhesive effective, with one mentioning it works well on aluminum horse trailers and another noting it adheres well to fiberglass and metal. The product receives positive feedback for its quality and durability, with one customer noting it holds up in all climates. The color receives mixed reviews, with one customer reporting the tube came with the wrong color sealer. The ease of use is also mixed, with some customers finding it easy to work with while others disagree.