Special T thick gap-filling CA glue (green label) has a viscosity (1150-1500) similar to honey. This super glue works great when you use it to bond both porous and non-porous parts, and it can fill larger gaps than our Super T medium CA glue. It is best used to glue parts that are missing pieces or dont fit very well together. You can bond the same materials as with our other CA glue- wood, metal rubber, nitrile, composites, many types of plastics- and Special T is effective even when a poor fit makes parts look impossible to bond. The gap-filling capability is very useful when there is a large chunk missing from a surface- filling that space with Special T can preserve the structural integrity, seal the area from moisture and contaminants, bond something to the exterior that would not fit otherwise, cover and protect jagged edges, and improve the look of the surface. If you have pieces that do fit well together, then this is the wrong CA glue to use, as it will create extra space in between the pieces. However, if you have a big chunk missing from a wood or stone surface that you need to fill in, or if you are gluing poorly-fitting materials, this is the best instant glue to use. It is also our easiest CA glue to use because Special T doesnt require a good fit and because the high viscosity makes it run much less than our thinner instant glues. Special T cures slower than our other CA glues (roughly 20 seconds with accelerator and 60 seconds without accelerator when pressed firmly between two parts), so you also have more time to assemble your pieces.