Mitsui Chemicals Europe is promoting its ADMER adhesive resin as a steel pipe coating solution.
ADMER adhesive resin is a functionally modified polyolefin that serves as a tie layer in multilayer applications, including steel pipes, according to Advanced Polymer Trading (APT), which is distributing the product.
“ADMER coated on steel pipes protects them from corrosion and weathering and so assures a long operating lifetime,” APT said in a press release.
According to APT, ADMER can be used to coat steel pipes using either a three-layer PE process (3LPE) or a three-layer PP process (3LPP).
For 3LPE coating, the epoxy primer is applied onto the preheated steel pipe to provide an oxygen barrier. Next, ADMER PE adhesive is applied to create a bond between the epoxy layer and the topcoat PE, which is applied to provide mechanical protection. The structure of 3LPP coatings corresponds to that of 3LPE, combining an epoxy primer, a PP topcoat and a PP adhesive, APT says.
The polypropylene (PP) coating is designed for applications that demand high service temperature and major mechanical protection. Both the PP and PE coatings are compatible with any kind of commercially available epoxy primers and polyethylene/ polypropylene topcoats, the company says.
APT Managing Director Hamid Amiri says the three-layer PE coating for pipelines has been used since the 1980s and “is increasingly replacing single layer fusion bonded epoxy coatings.”
As a tie resin, ADMER can be used in many different applications and with many different materials, including Polyamide (PA), EVOH, Polystyrene (PS), Polyester (PET, PETG), Polycarbonate (PC), Polyolefins (PP, PE) and epoxy, the manufacturer says.