STOPAQ Paste

STOPAQ® Paste is a mouldable corrosion preventing compound that is especially designed for low temperature applications. It is used for filling of voids and leveling of irregular surfaces prior to application of STOPAQ® coating materials, and adheres extremely well to steel and factory applied pipeline coatings like PE, PP and FBE.

Stopaq® Paste is a non-toxic, cold-applied compound, based on noncrystalline, low-viscosity, non-crosslinked (fully amorphous), pure homopolymer Polyisobutene. Stopaq® Paste is viscous at the indicated operating temperatures. Due to its liquid nature it has a set of unique properties, like cold-flow into all irregularities of the substrate. The compound does not cure and is unable to build up internal stress. Stopaq® Paste is fully resistant to water, salt spray and UV-radiation, and has a low gas- and water vapour permeability.

Stopaq® Paste requires application of additional flexible mechanical protective layers like Stopaq® Outerwrap. This improves impact and indentation resistance of the coating system and supports self-healing ability of small damages like dents and cuts in the complete coating. Optionally an additional mechanical protective layer can be applied on top like Stopaq® Polyester, or Stopaq® Outerglass Shield XT Grey.

Controlled cold flow providing inflow into the finest pores of the substrate.
Resistance to low temperatures without getting brittle.
Conforms to irregular shapes.
Low surface tension; adheres on many dry substrates at a molecular level.
Surface tolerant: no blasting techniques required, wire brushing is sufficient. (ISO 8501-1: St 2)
Adhesion based on vanderWaals forces.
Inert to ageing and weathering.
Resistant to many chemicals like water, salts, acids, alkalis, polar solvents, etc.