**Note: Product is sold in gallon size**
3Mís line of reinforced filler products offers users a unique and flexible array of repair solutions. Each product is reinforced with short fiberglass strands, long fiberglass strands or milled fiberglass. These reinforced fillers are significantly stronger than regular fillers and are waterproof. Great for repairing fiberglass and rust holes in metal.
Dyna-Glass can be used to fill gaps across up to 1/2" wide. Per the data sheet. It does not have a depth or thickness listed.