LOCTITE 88318 SI 5145 Tempflex Sealant Adhesive Kit 40ml. The non-slumping nature of SI 5145™ makes it ideal for reinforcing and strain-relieving delicate components. This product is typically used in applications up to 200°C.
I use this product for the construction and maintenance of model boats, it is an excellent sealant & adhesive. As it's noncorrosive it can be used on all metals & especially on electronic components & PCB.
When you look to buy this product look carefully at the price; I paid about £7 but have seen it offered at as much as £40.........